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Kurisaki K, Soyama A, Hamauzu S, Yamada M, Yamaguchi S, Matsuguma K, Kerkhof E, Fukuda T, Toya R, Eguchi S. Clinical Validation of Computer-Aided Diagnosis Software for Preventing Retained Surgical Sponges. J Am Coll Surg 2024; 238:856-860. [PMID: 38258847 DOI: 10.1097/xcs.0000000000001012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
BACKGROUND We previously reported the successful development of a computer-aided diagnosis (CAD) system for preventing retained surgical sponges with deep learning using training data, including composite and simulated radiographs. In this study, we evaluated the efficacy of the CAD system in a clinical setting. STUDY DESIGN A total of 1,053 postoperative radiographs obtained from patients 20 years of age or older who underwent surgery were evaluated. We implemented a foreign object detection application software on the portable radiographic device used in the operating room to detect retained surgical sponges. The results of the CAD system diagnosis were prospectively collected. RESULTS Among the 1,053 images, the CAD system detected possible retained surgical items in 150 images. Specificity was 85.8%, which is similar to the data obtained during the development of the software. CONCLUSIONS The validation of a CAD system using deep learning in a clinical setting showed similar efficacy as during the development of the system. These results suggest that the CAD system can contribute to the establishment of a more effective protocol than the current standard practice for preventing the retention of surgical items.
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Affiliation(s)
- Ken Kurisaki
- From the Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Japan (Kurisaki, Soyama, Yamaguchi, Matsuguma, Eguchi)
| | - Akihiko Soyama
- From the Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Japan (Kurisaki, Soyama, Yamaguchi, Matsuguma, Eguchi)
| | - Shin Hamauzu
- Imaging Technology Center, Research and Development Management Headquarters, FUJIFILM Corporation, Tokyo, Japan (Hamauzu, Yamada)
| | - Masahiko Yamada
- Imaging Technology Center, Research and Development Management Headquarters, FUJIFILM Corporation, Tokyo, Japan (Hamauzu, Yamada)
| | - Shun Yamaguchi
- From the Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Japan (Kurisaki, Soyama, Yamaguchi, Matsuguma, Eguchi)
| | - Kunihito Matsuguma
- From the Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Japan (Kurisaki, Soyama, Yamaguchi, Matsuguma, Eguchi)
| | - Enzo Kerkhof
- Educational Program Technical Medicine, Leiden University Medical Center, Delft University of Technology and Erasmus MC Rotterdam, Rotterdam, The Netherlands (Kerkhof)
| | - Toru Fukuda
- From the Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Japan (Kurisaki, Soyama, Yamaguchi, Matsuguma, Eguchi)
- Imaging Technology Center, Research and Development Management Headquarters, FUJIFILM Corporation, Tokyo, Japan (Hamauzu, Yamada)
- Educational Program Technical Medicine, Leiden University Medical Center, Delft University of Technology and Erasmus MC Rotterdam, Rotterdam, The Netherlands (Kerkhof)
- Department of Radiology, Nagasaki University Hospital, Nagasaki City, Japan (Toya)
| | - Ryo Toya
- Department of Radiology, Nagasaki University Hospital, Nagasaki City, Japan (Toya)
| | - Susumu Eguchi
- From the Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Japan (Kurisaki, Soyama, Yamaguchi, Matsuguma, Eguchi)
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Toya R, Fukugawa Y, Saito T, Matsuyama T, Yoshida R, Murakami D, Orita Y, Nakayama H, Oya N. Radiation Therapy Oncology Group 8502 "QUAD shot" regimen using volumetric modulated arc therapy for incurable head and neck cancer. Oral Oncol 2024; 151:106752. [PMID: 38518555 DOI: 10.1016/j.oraloncology.2024.106752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/21/2024] [Accepted: 03/07/2024] [Indexed: 03/24/2024]
Abstract
OBJECTIVES We aimed to evaluate the outcomes of the Radiation Therapy Oncology Group 8502 "QUAD shot" regimen using volumetric modulated arc therapy (VMAT) for incurable head and neck cancer (HNC). MATERIALS AND METHODS We included 105 patients with HNC in the study, undergoing at least one QUAD shot regimen cycle. We planned the radiotherapy using VMAT with 6 MV photons. One QUAD shot cycle included 14.8 Gy in 4 fractions with at least 6-hour intervals over 2 consecutive days, repeated every 3-6 weeks up to 3 cycles. RESULTS We completed 1, 2, and 3 cycles in 11 (10 %), 17 (16 %), and 77 (73 %) patients, respectively. We concurrently performed systemic therapy in 13 (12 %) patients. Tumor response was observed in 92 (88 %) patients and at least one symptom relief in 51 (71 %) of 72 patients. We observed an overall response (tumor response or symptom relief) in 98 (93 %) patients with all patients who completed 3 cycles achieving it. The median overall survival (OS) was 6.8 months. Our multivariate analysis revealed that non-squamous cell carcinoma (p < 0.001), T category of 0-2 (p = 0.021), and 3 QUAD shot cycles (p < 0.001) were independent prognostic factors of better OS. We observed Grade 3 toxicity in 2 (2 %) patients while no ≥ Grade 4 acute or ≥ Grade 3 late toxicity. CONCLUSIONS The QUAD shot regimen using VMAT exerts appropriate palliative effect in patients with incurable HNC. Treatment with higher QUAD shot cycle number would be recommended for better treatment outcomes.
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Affiliation(s)
- Ryo Toya
- Department of Radiological Sciences, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan; Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
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Tezuka K, Yamakawa M, Murakami R, Hirai I, Toya R, Suzuki A, Kawamura H, Miyano Y, Sato H, Motoi F. Familial Intraductal Papillary Mucinous Neoplasm Associated With the Germline MSH6 Missense Variant and Progression of Pancreatic cancer. Pancreas 2024:00006676-990000000-00127. [PMID: 38416847 DOI: 10.1097/mpa.0000000000002313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
OBJECTIVES Intraductal papillary mucinous neoplasm (IPMN) in individuals with at least one first-degree relative with IPMN is defined as familial IPMN. However, few studies have reported on familial IPMN, its clinical characteristics, or the associated genetic factors. MATERIALS AND METHODS We report the case of a 58-year-old woman with multifocal IPMN and a mural nodule in the pancreatic body. The patient underwent a distal pancreatectomy and developed pancreatic head cancer 1 year and 6 months postoperatively. The patient had a family history of multifocal IPMN in her father. Therefore, a genetic predisposition to IPMN and pancreatic cancer was suspected. The patient was analyzed for germline variants, and the resected IPMN was subjected to immunohistochemical and somatic variant analyses. RESULTS Next-generation sequencing revealed a heterozygous germline missense variant in exon 5 of MSH6 (c.3197A>G; Tyr1066Cys). The pathogenicity of this variant of uncertain significance was suspected based on multiple in silico analyses, and the same MSH6 variant was identified in the patient's father's colonic adenoma. The mural nodule in the pancreatic body was pathologically diagnosed as a high-grade IPMN with ossification and somatic KRAS and PIK3CA variants. CONCLUSIONS This case revealed a possible genetic factor for familial IPMN development and presented interesting clinicopathological findings.
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Affiliation(s)
| | | | - Ryoko Murakami
- Genome Informatics Unit, Institution for Promotion of Medical Science Research, Yamagata University Faculty of Medicine
| | | | - Ryo Toya
- From the Departments of Surgery and
| | | | | | - Yuki Miyano
- Genome Informatics Unit, Institution for Promotion of Medical Science Research, Yamagata University Faculty of Medicine
| | - Hidenori Sato
- Genome Informatics Unit, Institution for Promotion of Medical Science Research, Yamagata University Faculty of Medicine
| | - Fuyuhiko Motoi
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
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Matsumoto T, Toya R, Shimohigashi Y, Yamaguchi K, Watakabe T, Matsuyama T, Fukugawa Y, Kai Y, Oya N. Influence of Respiratory Motion on Dose Distribution in Gastric Mucosa-associated Lymphoid Tissue Lymphoma Radiotherapy. Anticancer Res 2024; 44:687-694. [PMID: 38307577 DOI: 10.21873/anticanres.16859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 02/04/2024]
Abstract
BACKGROUND/AIM The present study investigated the effect of respiratory motion on planned radiotherapy (RT) dose for gastric mucosa-associated lymphoid tissue (MALT) lymphoma using four-dimensional dose (4D-dose) accumulation. PATIENTS AND METHODS 4D-computed tomography (4D-CT) images of 10 patients with gastric MALT lymphomas were divided into 10 respiratory phases. Further, the 3D-dose was calculated using 3D conformal RT (3D-CRT) and volumetric modulated arc therapy (VMAT) plans based on the average intensity projection (AIP) images. Then, both plans were recalculated according to each phase image. Moreover, the dose distributions in each phase were transferred to the AIP images using deformable image registration. The 4D-dose distribution was calculated by summing the doses of each phase, and it was compared with the dosimetric parameters of the 3D-dose distribution. RESULTS For 3D-CRT, the D95 and D99 of the 4D-dose in the planning target volume (PTV) were significantly lower than those of the 3D-dose, with mean differences of 0.2 (p=0.009) and 0.1 Gy (p=0.021), respectively. There were no significant differences in the other PTV and organ-at-risk dosimetric parameters of 3D-CRT or in any dosimetric parameters of VMAT between the 3D- and 4D-dose distributions. CONCLUSION The effect of respiratory motion on the planned 3D-CRT and VMAT dose distributions for gastric MALT lymphoma is minimal and clinically negligible.
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Affiliation(s)
- Tadashi Matsumoto
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan;
- Department of Radiological Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | | | - Kohsei Yamaguchi
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Oka T, Ishimaru H, Hirao M, Nagayama H, Miyamura S, Somagawa C, Nonaka T, Honda T, Toya R. A case of chylous ascites caused by reflux from the cisterna chyli to the disrupted common iliac lymphatic vessel: fluoroscopic records during intranodal lymphangiography. BJR Case Rep 2024; 10:uaae004. [PMID: 38352268 PMCID: PMC10860527 DOI: 10.1093/bjrcr/uaae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 01/12/2024] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
A 40-year-old woman underwent laparoscopic common iliac lymphadenectomy for metastasis from rectal cancer. Two weeks after the surgery, she was found to have massive chylous ascites. After failure of conservative treatment, bilateral inguinal intranodal lymphangiography was performed. No definite extravasation was observed while lipiodol injected through the left inguinal node was ascending. When we punctured the right inguinal lymph nodes and started the injection of lipiodol, extravasation of diluted lipiodol was noted at the level of the first sacrum. Careful observation revealed that the ascending lipiodol became diluted in the cisterna chyli, refluxed through the median paraaortic route, leaked from the excised left common iliac lymph vessel, and flowed into the abdominal cavity. Lipiodol used in lymphangiography did not reduce chylous ascites at all. Twenty-seven days after lymphangiography, laparoscopic lymphatic ligation was performed, and the chylous ascites disappeared completely. CT obtained 40 days after surgical repair revealed disappearance of ascites and enlargement of the thoracic duct, which had not been observed on preoperative lymphangiography. Notably, lymphatic reflux from the cisterna chili can occur without obstruction of the thoracic duct and may result in chylous ascites.
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Affiliation(s)
- Taiga Oka
- Department of Radiology, Nagasaki University Hospital, Nagasaki 852-8501, Japan
| | - Hideki Ishimaru
- Department of Radiological Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Maki Hirao
- Department of Radiology, Nagasaki University Hospital, Nagasaki 852-8501, Japan
| | - Hiroki Nagayama
- Department of Radiology, Nagasaki University Hospital, Nagasaki 852-8501, Japan
| | - Shuto Miyamura
- Department of Radiology, Nagasaki University Hospital, Nagasaki 852-8501, Japan
| | - Chika Somagawa
- Department of Radiology, Nagasaki University Hospital, Nagasaki 852-8501, Japan
| | - Takashi Nonaka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Takuya Honda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Ryo Toya
- Department of Radiological Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
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Takagi Y, Katayama I, Eida S, Sasaki M, Shimizu T, Sato S, Hashimoto K, Mori H, Otsuru M, Umeda M, Kumai Y, Toya R, Kawakami A, Sumi M. Three Signs to Help Detect Sjögren's Syndrome: Incidental Findings on Magnetic Resonance Imaging and Computed Tomography. J Clin Med 2023; 12:6487. [PMID: 37892630 PMCID: PMC10607120 DOI: 10.3390/jcm12206487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/04/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
This study aimed to retrospectively investigate the prevalence of Sjögren's syndrome (SS) among patients with ranulas, parotid cysts, or parotid calcifications; identify the characteristic magnetic resonance imaging (MRI) or computed tomography (CT) findings of the lesions associated with SS; and compare the SS disease stages among SS patients with the three lesion types. A total of 228 patients with the lesions were classified into SS, possible SS, and non-SS groups. The prevalence of SS among patients with ranulas, parotid cysts, or parotid calcifications was 16%, 24%, and 40%, and the rates of either SS or possible SS were 25%, 41%, and 64%, respectively. SS was associated with (i) ranulas: ≤17 mm; (ii) parotid cysts: bilateral and multiple; and (iii) parotid calcifications: in females, bilateral, multiple, parenchymal, and no coexisting calcifications in other tissues. SS patients with ranulas were significantly younger and had lower submandibular gland stage scores on MRI/CT than those with other lesions. Additionally, in 58% and 15% of SS patients with ranulas and parotid calcifications, respectively, detection of the lesions led to the diagnosis of primary SS. Therefore, recognizing the prevalence of SS among patients with these lesions and the findings associated with SS can help detect undiagnosed SS.
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Affiliation(s)
- Yukinori Takagi
- Department of Radiology and Biomedical Informatics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (Y.T.); (I.K.); (S.E.); (M.S.); (H.M.)
| | - Ikuo Katayama
- Department of Radiology and Biomedical Informatics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (Y.T.); (I.K.); (S.E.); (M.S.); (H.M.)
| | - Sato Eida
- Department of Radiology and Biomedical Informatics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (Y.T.); (I.K.); (S.E.); (M.S.); (H.M.)
| | - Miho Sasaki
- Department of Radiology and Biomedical Informatics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (Y.T.); (I.K.); (S.E.); (M.S.); (H.M.)
| | - Toshimasa Shimizu
- Department of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan; (T.S.); (A.K.)
| | - Shuntaro Sato
- Clinical Research Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan;
| | - Kunio Hashimoto
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan;
| | - Hiroki Mori
- Department of Radiology and Biomedical Informatics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (Y.T.); (I.K.); (S.E.); (M.S.); (H.M.)
| | - Mitsunobu Otsuru
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.O.); (M.U.)
| | - Masahiro Umeda
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.O.); (M.U.)
| | - Yoshihiko Kumai
- Department of Otolaryngology-Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan;
| | - Ryo Toya
- Department of Radiological Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan;
| | - Atsushi Kawakami
- Department of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan; (T.S.); (A.K.)
| | - Misa Sumi
- Department of Radiology and Biomedical Informatics, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (Y.T.); (I.K.); (S.E.); (M.S.); (H.M.)
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Toya R, Matsuyama T, Saito T, Fukugawa Y, Shiraishi S, Murakami D, Orita Y, Hirai T, Oya N. Prevalence and Risk Factors for Retropharyngeal and Retro-Styloid Lymph Node Metastasis in Hypopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e630. [PMID: 37785883 DOI: 10.1016/j.ijrobp.2023.06.2025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) We evaluated the prevalence and identified the risk factors for retropharyngeal and retro-styloid lymph node metastasis (LNM) in patients with hypopharyngeal carcinoma (HPC). This was achieved using a combination of MR and FDG-PET/CT images. MATERIALS/METHODS Two board-certified radiation oncologists, who experienced 16 and 18 years in the diagnosis and treatment of head and neck cancers retrospectively reviewed pretreatment FDG-PET/CT images and contrast-enhanced thin-slice CT and MR images of 155 patients with HPC who underwent radiotherapy. Observers assessed these images without prior knowledge of the patient's clinical information and disagreements were resolved by consensus. The radiological diagnostic criteria for lateral retropharyngeal LNM (RPLNM) and retro-styloid LNM (RSLNM) were a short-axis diameter of ≥5 mm and/or necrosis and/or abnormal FDG uptake. Any visible medial RPLN was defined as LNM. RESULTS RPLNM was confirmed in 20 (13%) patients. Of these, 10 (6%) had ipsilateral RPLNM, 5 (3%) had contralateral RPLNM, and 5 (3%) had bilateral RPLNM. No patients were diagnosed with medial RPLNM. Fisher's exact test revealed tumor site (p = 0.006), T category (p = 0.049), and cervical LNM (p < 0.001) to be significantly associated with RPLNM. Logistic regression analysis revealed posterior wall (PW) tumors (odds ratio [OR]: 4.128, 95% confidence interval [CI]: 1.339-12.727; p = 0.014) and bilateral or contralateral cervical LNM (OR: 11.577, 95% CI: 2.135-62.789; p = 0.005) to be significantly correlated with RPLNM. The RPLNM was found in 9 (32%) of the 28 patients with PW tumors. Of these 9 patients, 2 (7%) had ipsilateral RPLNM, 3 (11%) had contralateral RPLNM, and 4 (14%) had bilateral RPLNM. Fisher's exact test revealed the PW tumors to be significantly associated with contralateral RPLNM (p < 0.001). Retro-styloid LNM (RSLNM) was confirmed in two (1%) patients, both of whom had ipsilateral RSLNM with lymph nodes (LNs) of ≥15 mm in the upper limit of ipsilateral level II. Fisher's exact test revealed the LN of ≥15 mm in the upper limit of ipsilateral level II to be significantly associated with ipsilateral RSLNM (p = 0.001). CONCLUSION The RPLNM was identified in 13% of patients with HPC. The PW tumors and bilateral or contralateral cervical LNM were risk factors for RPLNM; particularly, PW tumors were a specific risk factor for contralateral RPLNM. Although the RSLNM was rare, LNs of ≥15 mm in the upper limit of ipsilateral level II were a risk factor for ipsilateral RSLNM.
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Affiliation(s)
- R Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; Department of Radiological Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - T Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - T Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - S Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - D Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - T Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - N Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Koike H, Ashizawa K, Tsutsui S, Kurohama H, Okano S, Nagayasu T, Kido S, Uetani M, Toya R. Differentiation Between Heterogeneous GGN and Part-Solid Nodule Using 2 D Grayscale Histogram Analysis of Thin-Section CT Image. Clin Lung Cancer 2023; 24:541-550. [PMID: 37407293 DOI: 10.1016/j.cllc.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 07/07/2023]
Abstract
INTRODUCTION/BACKGROUND To evaluate cases of surgically resected pulmonary adenocarcinoma (Ad) with heterogenous ground-glass nodules (HGGNs) or part-solid nodules (PSNs) and to clarify the differences between them, and between invasive adenocarcinoma (IVA) and minimally invasive adenocarcinoma (MIA) + adenocarcinoma in situ (AIS) using grayscale histogram analysis of thin-section computed tomography (TSCT). MATERIALS AND METHODS 241 patients with pulmonary Ad were retrospectively classified into HGGNs and PSNs on TSCT by three thoracic radiologists. Sixty HGGNs were classified into 17 IVAs, 26 MIAs, and 17 AISs. 181 PSNs were classified into 114 IVAs, 55 MIAs, and 12 AISs. RESULTS We found significant differences in area (P = 0.0024), relative size of solid component (P <0.0001), circumference (P <0.0001), mean CT value (P <0.0001), standard deviation of the CT value (P <0.0001), maximum CT value (P <0.0001), skewness (P <0.0001), kurtosis (P <0.0001), and entropy (P <0.0001) between HGGNs and PSNs. In HGGNs, we found significant differences in relative size of solid component (P <0.0001), mean CT value (P = 0.0005), standard deviation of CT value (P = 0.0071), maximum CT value (P = 0.0237), and skewness (P = 0.0027) between IVAs and MIA+AIS lesions. In PSNs, we found significant differences in area (P = 0.0029), relative size of solid component (P = 0.0003), circumference (P = 0.0004), mean CT value (P = 0.0011), skewness (P = 0.0009), and entropy (P = 0.0002) between IVAs and the MIA+AIS lesions. CONCLUSION Quantitative evaluations using grayscale histogram analysis can clearly distinguish between HGGNs and PSNs, and may be useful for estimating the pathology of such lesions.
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Affiliation(s)
- Hirofumi Koike
- Departments of Radiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kazuto Ashizawa
- Departments of Clinical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
| | - Shin Tsutsui
- Departments of Radiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hirokazu Kurohama
- Department of Pathology, Nagasaki University Hospital, Nagasaki, Japan
| | - Shinji Okano
- Department of Pathology, Nagasaki University Hospital, Nagasaki, Japan
| | - Takeshi Nagayasu
- Departments of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shoji Kido
- Department of Artificial Intelligence Diagnostic Radiology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masataka Uetani
- Departments of Radiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ryo Toya
- Departments of Radiology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Toya R, Matsuyama T, Saito T, Fukugawa Y, Watakabe T, Shiraishi S, Murakami D, Orita Y, Hirai T, Oya N. Prevalence and risk factors for retropharyngeal and retro-styloid lymph node metastasis in hypopharyngeal carcinoma. Radiat Oncol 2023; 18:134. [PMID: 37568173 PMCID: PMC10422770 DOI: 10.1186/s13014-023-02322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/10/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND We evaluated the prevalence and identified the risk factors for retropharyngeal and retro-styloid lymph node metastasis (LNM) in patients with hypopharyngeal carcinoma (HPC). This was achieved using a combination of magnetic resonance (MR) and [18 F]-fluoro-2-deoxy-D-glucose (FDG)-positron emission tomography (PET)/computed tomography (CT) images. METHODS Two board-certified radiation oncologists retrospectively reviewed pretreatment FDG-PET/CT images and contrast-enhanced thin-slice CT and MR images of 155 patients with HPC who underwent radiotherapy. Fisher's exact tests and logistic regression analyses were performed to assess the risk factors for LNM. RESULTS Retropharyngeal LNM (RPLNM) was confirmed in 20 (13%) patients. Posterior wall (PW) tumors (odds ratio [OR]: 4.128, 95% confidence interval [CI]: 1.339-12.727; p = 0.014) and bilateral or contralateral cervical LNM (OR: 11.577, 95% CI: 2.135-62.789; p = 0.005) were significantly correlated with RPLNM. The RPLNM was found in 9 (32%) of the 28 patients with PW tumors. Of these 9 patients, 2 (7%) had ipsilateral RPLNM, 3 (11%) had contralateral RPLNM, and 4 (14%) had bilateral RPLNM. The PW tumors were significantly associated with contralateral RPLNM (p < 0.001). Retro-styloid LNM (RSLNM) was confirmed in two (1%) patients, both of whom had ipsilateral RSLNM with lymph nodes (LNs) of ≥ 15 mm in the upper limit of ipsilateral level II. A significant association was found between LNs of ≥ 15 mm in the upper limit of ipsilateral level II and ipsilateral RSLNM (p = 0.001). CONCLUSIONS The RPLNM was identified in 13% of patients with HPC. The PW tumors and bilateral or contralateral cervical LNM were risk factors for RPLNM; particularly, PW tumors were a specific risk factor for contralateral RPLNM. Although the RSLNM was rare, LNs of ≥ 15 mm in the upper limit of ipsilateral level II were a risk factor for ipsilateral RSLNM.
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Affiliation(s)
- Ryo Toya
- Department of Radiological Sciences, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Takeshita H, Yoshida R, Inoue J, Ishikawa K, Shinohara K, Hirayama M, Oyama T, Kubo R, Yamana K, Nagao Y, Gohara S, Sakata J, Nakashima H, Matsuoka Y, Nakamoto M, Hirayama M, Kawahara K, Takahashi N, Hirosue A, Kuwahara Y, Fukumoto M, Toya R, Murakami R, Nakayama H. FOXM1-Mediated Regulation of Reactive Oxygen Species and Radioresistance in Oral Squamous Cell Carcinoma Cells. J Transl Med 2023; 103:100060. [PMID: 36801643 DOI: 10.1016/j.labinv.2022.100060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/30/2022] [Indexed: 01/11/2023] Open
Abstract
Radioresistance is a major obstacle to the successful treatment of oral squamous cell carcinoma (OSCC). To help overcome this issue, we have developed clinically relevant radioresistant (CRR) cell lines generated by irradiating parental cells over time, which are useful for OSCC research. In the present study, we conducted gene expression analysis using CRR cells and their parental lines to investigate the regulation of radioresistance in OSCC cells. Based on gene expression changes over time in CRR cells and parental lines subjected to irradiation, forkhead box M1 (FOXM1) was selected for further analysis in terms of its expression in OSCC cell lines, including CRR cell lines and clinical specimens. We suppressed or upregulated the expression of FOXM1 in OSCC cell lines, including CRR cell lines, and examined radiosensitivity, DNA damage, and cell viability under various conditions. The molecular network regulating radiotolerance was also investigated, especially the redox pathway, and the radiosensitizing effect of FOXM1 inhibitors was examined as a potential therapeutic application. We found that FOXM1 was not expressed in normal human keratinocytes but was expressed in several OSCC cell lines. The expression of FOXM1 was upregulated in CRR cells compared with that detected in the parental cell lines. In a xenograft model and clinical specimens, FOXM1 expression was upregulated in cells that survived irradiation. FOXM1-specific small interfering RNA (siRNA) treatment increased radiosensitivity, whereas FOXM1 overexpression decreased radiosensitivity, and DNA damage was altered significantly under both conditions, as well as the levels of redox-related molecules and reactive oxygen species production. Treatment with the FOXM1 inhibitor thiostrepton had a radiosensitizing effect and overcame radiotolerance in CRR cells. According to these results, the FOXM1-mediated regulation of reactive oxygen species could be a novel therapeutic target for the treatment of radioresistant OSCC; thus, treatment strategies targeting this axis might overcome radioresistance in this disease.
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Affiliation(s)
- Hisashi Takeshita
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
| | - Junki Inoue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kohei Ishikawa
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; Department of Dentistry, Self-Defense Forces Kumamoto Hospital, Kumamoto, Japan
| | - Kosuke Shinohara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Mayumi Hirayama
- Laboratory of Transcriptional Regulation in Leukemogenesis, International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Toru Oyama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryuta Kubo
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Keisuke Yamana
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuka Nagao
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shunsuke Gohara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Junki Sakata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hikaru Nakashima
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | | | - Masafumi Nakamoto
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Masatoshi Hirayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenta Kawahara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Nozomu Takahashi
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshikazu Kuwahara
- Radiation Biology and Medicine, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Manabu Fukumoto
- Pathology Informatics Team, RIKEN Center for Advanced Intelligence Project, Chuo-ku, Tokyo, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryuji Murakami
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
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Toya R, Saito T, Fukugawa Y, Matsuyama T, Matsumoto T, Shiraishi S, Murakami D, Orita Y, Hirai T, Oya N. Prevalence and risk factors of retro-styloid lymph node metastasis in oropharyngeal carcinoma. Ann Med 2022; 54:436-441. [PMID: 35098812 PMCID: PMC8812754 DOI: 10.1080/07853890.2022.2031270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Supporting data defining the selection criteria of level VIIb for inclusion in the target volume in radiotherapy (RT) planning are insufficient. We evaluated the prevalence of level VIIb retro-styloid lymph node metastasis (RSLNM) and associated risk factors in patients with oropharyngeal carcinoma (OPC). MATERIALS AND METHODS We retrospectively reviewed pre-treatment [18F]-fluoro-2-deoxy-d-glucose-positron emission tomography/computed tomography (CT) along with contrast-enhanced thin slice CT and magnetic resonance (MR) images of 137 patients pathologically confirmed as having OPC who underwent RT. The location of lymph nodes (LNs) was confirmed on the planning CT images. Fisher's exact test and logistic regression analyses were made to determine the risk factors of RSLNM. RESULTS RSLNM was confirmed in 18 (13%) patients. All RSLNMs were located within level VIIb on the planning CT images. No patients exhibited LNM in contralateral level VIIb. Furthermore, no patients with negative or single ipsilateral cervical LNM had RSLNM. Fisher's exact test revealed that smoking status (p=.027), multiple ipsilateral cervical LNM (p=.045) and LN ≥15 mm in the upper limit of ipsilateral level II (p<.001) were significantly associated with RSLNM. Logistic regression analyses revealed that the presence of LNs ≥15 mm in upper limit of ipsilateral level II was significantly associated with RSLNM (odds ratio: 977.297; 95% confidence interval: 57.629-16573.308; p<.001). CONCLUSIONS RSLNM is relatively common in patients with OPC with a prevalence rate of approximately 10%. The prevalence of RSLNM in patients with negative or single ipsilateral cervical LNM and contralateral RSLNM is extremely low; therefore, level VIIb can be excluded from the target volume in such patients. LN ≥15 mm in the upper limit of ipsilateral level II is a risk factor for RSLNM. Ipsilateral level VIIb should be included in the target volume for patients with this risk factor.KEY MESSAGERetro-styloid lymph node metastasis (RSLNM) prevalence is ∼10% in oropharyngeal carcinoma.Lymph node ≥15 mm in ipsilateral level II upper limit is a risk factor for RSLNM.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tadashi Matsumoto
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Toya R, Saito T, Fukugawa Y, Matsuyama T, Matsumoto T, Shiraishi S, Murakami D, Orita Y, Hirai T, Oya N. Prevalence and Risk Factors of Retro-Styloid Lymph Node Metastasis in Oropharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Fukugawa Y, Toya R, Matsuyama T, Watakabe T, Shimohigashi Y, Kai Y, Matsumoto T, Oya N. Impact of metal artifact reduction algorithm on gross tumor volume delineation in tonsillar cancer: reducing the interobserver variation. BMC Med Imaging 2022; 22:161. [PMID: 36068498 PMCID: PMC9450459 DOI: 10.1186/s12880-022-00889-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/31/2022] [Indexed: 11/12/2022] Open
Abstract
Background Patients with tonsillar cancer (TC) often have dental fillings that can significantly degrade the quality of computed tomography (CT) simulator images due to metal artifacts. We evaluated whether the use of the metal artifact reduction (MAR) algorithm reduced the interobserver variation in delineating gross tumor volume (GTV) of TC.
Methods Eighteen patients with TC with dental fillings were enrolled in this study. Contrast-enhanced CT simulator images were reconstructed using the conventional (CTCONV) and MAR algorithm (CTMAR). Four board-certified radiation oncologists delineated the GTV of primary tumors using routine clinical data first on CTCONV image datasets (GTVCONV), followed by CTCONV and CTMAR fused image datasets (GTVMAR) at least 2 weeks apart. Intermodality differences in GTV values and Dice similarity coefficient (DSC) were compared using Wilcoxon’s signed-rank test. Results GTVMAR was significantly smaller than GTVCONV for three observers. The other observer showed no significant difference between GTVCONV and GTVMAR values. For all four observers, the mean GTVCONV and GTVMAR values were 14.0 (standard deviation [SD]: 7.4) cm3 and 12.1 (SD: 6.4) cm3, respectively, with the latter significantly lower than the former (p < 0.001). The mean DSC of GTVCONV and GTVMAR was 0.74 (SD: 0.10) and 0.77 (SD: 0.10), respectively, with the latter significantly higher than that of the former (p < 0.001). Conclusions The use of the MAR algorithm led to the delineation of smaller GTVs and reduced interobserver variations in delineating GTV of the primary tumors in patients with TC.
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Affiliation(s)
- Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yoshinobu Shimohigashi
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Tadashi Matsumoto
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
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Doi Y, Shimohigashi Y, Kai Y, Maruyama M, Toya R. Validation of four-dimensional computed tomography without external reference respiratory signals for radiation treatment planning of lung tumors. Biomed Phys Eng Express 2022; 8. [PMID: 35905637 DOI: 10.1088/2057-1976/ac8555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/28/2022] [Indexed: 11/12/2022]
Abstract
Deviceless four-dimensional (4D) computed tomography (CT) allows the acquisition of respiratory signals from six features without requiring an external device for cine CT processing. This method has been recently introduced in radiation treatment planning of lung tumors. To validate deviceless 4D CT, it must be compared with conventional 4D CT, which requires an external monitoring device. We compared the two methods using a multicell 4D phantom that simulates patient's movement during respiration regarding the target volume (TV), target position (TP), and internal TV for lung tumor radiation therapy. We retrospectively obtained images of 10 patients who underwent radiation treatment planning of lung tumors and compared the two methods, as in the phantom study. For the phantom study, the mean TV, root mean square errors of the TP, and mean internal TV differences between the two methods ranged from -4.5% to 1.2%, 0.7 to 2.6 mm, and -1.1% to 3.4%, respectively. The corresponding results of the clinical study ranged from -1.5% to 14.9%, 0.1 to 5.9 mm, and -9.7% to 10.1%, respectively. The results of deviceless 4D CT for the clinical study were consistent with those of conventional 4D CT, except for target movements with high excursions. Therefore, deviceless 4D CT can be an alternative to conventional 4D CT for radiation treatment planning of lung tumors.
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Affiliation(s)
- Yasuhiro Doi
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan, Kumamoto, 860-8556, JAPAN
| | - Yoshinobu Shimohigashi
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan, Kumamoto, 860-8556, JAPAN
| | - Yudai Kai
- Kumamoto University Hospital, Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan, Kumamoto, 860-8556, JAPAN
| | - Masato Maruyama
- Kumamoto University Hospital, Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan, Kumamoto, 860-8556, JAPAN
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan, Kumamoto, 860-8556, JAPAN
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Toya R, Watakabe T, Kai Y, Matsuyama T, Fukugawa Y, Matsumoto T, Shiraishi S, Shimohigashi Y, Saeki S, Sakagami T, Hirai T, Oya N. Implementation of 99mTc-GSA SPECT Image-guided Inverse Planning into Palliative Radiotherapy for Diffuse Liver Metastases: A Novel Approach. In Vivo 2022; 36:1523-1526. [PMID: 35478155 DOI: 10.21873/invivo.12862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM This is a report of the first clinical implementation of 99mTc-labeled diethylene triamine pentaacetate-galactosyl human serum albumin (99mTc-GSA) single-photon emission computed tomography (SPECT) image-guided inverse planning into palliative radiotherapy (RT) for diffuse liver metastases. CASE REPORT A 48-year-old man developed chemo-refractory diffuse liver metastases from thymic carcinoma characterized by abdominal pain and distension. Palliative RT was performed with a total dose of 20 Gy in five fractions using double arc volumetric modulated arc therapy to reduce the dose to functional liver defined by 99mTc-GSA SPECT images. His symptoms were immediately relieved after RT and did not experience radiation-induced liver disease. Both Functional Assessment of Cancer Therapy (FACT)-G and FACT-Hep total scores improved after 2 weeks of RT initiation and did not become worse than baseline scores. CONCLUSION The 99mTc-GSA SPECT image-guided palliative RT is an effective and safe treatment for patients with diffuse liver metastases.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan;
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tadashi Matsumoto
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | | | - Sho Saeki
- department of Respiratory Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takuro Sakagami
- department of Respiratory Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Matsuyama T, Fukugawa Y, Kuroda J, Toya R, Watakabe T, Matsumoto T, Oya N. A prospective comparison of adaptive and fixed boost plans in radiotherapy for glioblastoma. Radiat Oncol 2022; 17:40. [PMID: 35193635 PMCID: PMC8864825 DOI: 10.1186/s13014-022-02007-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 02/06/2022] [Indexed: 11/26/2022] Open
Abstract
Purpose To analyze the efficacy of adaptive radiotherapy (ART) for glioblastoma. Methods Sixty-one glioblastoma patients who received ART were prospectively evaluated. The initial clinical target volume (CTVinitial) was represented by T2 hyperintensity on postoperative MRIs (pre-RT MRI [MRIpre])plus 10 mm. The initial planning target volume (PTVinitial) was the CTVinitial plus a 5-mm margin. The PTVinitial received 40 Gy. An MRI and a second planning CT were performed during radiotherapy (MRImid). Two types of boost CTVs (the resection cavity and residual tumor on enhanced T1-weighted MRI plus 10 mm) were created based on the MRIpre and MRImid (CTVboost-pre and -mid). The boost PTV (PTVboost) was the CTVboost plus 5 mm. Two types of boost plans (fixed and adaptive boost plans in the first and second planning CT, respectively) of 20 Gy were created. The PTV based on the post-RT MRI (PTVboost-post) was created, and the dose-volume histograms of the PTVboost-post in the fixed and adaptive boost plans were compared. Additionally, the conformity indices (CIs) of the fixed and adaptive boost plans were compared. Results The median V95 of the PTVboost-post of the fixed and adaptive boost plans (V95pre and V95mid) were 95.6% and 98.3%, respectively (P < 0.01). The median V95pre and V95mid of patients after gross total resection (GTR) were 97.4% and 98.8%, respectively (P = 0.41); in contrast, the median values of patients after non-GTR were 91.9% and 98.2%, respectively (P < 0.01). The median CIs of the fixed and adaptive boost plans in all patients were 1.45 and 1.47, respectively (P = 0.31). The median CIs of the fixed and adaptive boost plans in patients after GTR were 1.61 and 1.48, respectively (P = 0.01); in contrast, those in patients after non-GTR were 1.36 and 1.44, respectively (P = 0.13). Conclusion ART for glioblastoma improved the target coverage and dose reduction for the normal brain. By analyzing the results according to the resection rate, we can expect a decrease in normal brain dose in patients with GTR and an increase in coverage in those with partial resection or biopsy.
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Matsuoka Y, Yoshida R, Kawahara K, Sakata J, Arita H, Nkashima H, Takahashi N, Hirayama M, Nagata M, Hirosue A, Kuwahara Y, Fukumoto M, Toya R, Murakami R, Nakayama H. The antioxidative stress regulator Nrf2 potentiates radioresistance of oral squamous cell carcinoma accompanied with metabolic modulation. J Transl Med 2022; 102:896-907. [PMID: 35414650 PMCID: PMC9309095 DOI: 10.1038/s41374-022-00776-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 01/27/2022] [Accepted: 02/08/2022] [Indexed: 12/12/2022] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2), which regulates the expression of critical antioxidant proteins, was recently demonstrated to play a key role in cancer progression. Resistance to radiotherapy is a major obstacle in treating oral squamous cell carcinoma (OSCC). However, little is known about the association between Nrf2 and radioresistance in OSCC. Two OSCC cell lines (SAS and HSC-2) and their clinically relevant radioresistant (CRR) clones (SAS-R, HSC-2-R) were used. The effects of Nrf2 downregulation on radiosensitivity and the involvement of glycolysis in Nrf2-mediated radioresistance were evaluated. Immunohistochemistry of phosphorylated Nrf2 (p-Nrf2) was performed in 110 patients with OSCC who underwent preoperative chemoradiotherapy and surgery. Nrf2 was stably upregulated in CRR cells in vitro and in a mouse xenograft model. Moreover, elevated Nrf2 expression was associated with radioresistance. The enhancement of Nrf2-dependent glycolysis and glutathione synthesis was involved in the development of radioresistance. Additionally, p-Nrf2 expression was closely related to the pathological response to chemoradiotherapy, and its expression was predictive of prognosis in patients with advanced OSCC. Our results suggest that Nrf2 plays an important role in the radioresistance of OSCC accompanied by metabolic reprogramming. Targeting Nrf2 antioxidant pathway may represent a promising treatment strategy for highly malignant OSCC.
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Affiliation(s)
- Yuichiro Matsuoka
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.
| | - Kenta Kawahara
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Junki Sakata
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Hidetaka Arita
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Hikaru Nkashima
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Nozomu Takahashi
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Masatoshi Hirayama
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Masashi Nagata
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Akiyuki Hirosue
- grid.274841.c0000 0001 0660 6749Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Yoshikazu Kuwahara
- grid.412755.00000 0001 2166 7427Division of Radiation Biology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Miyagi, 981-8558 Japan
| | - Manabu Fukumoto
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, 160-8402 Japan
| | - Ryo Toya
- grid.274841.c0000 0001 0660 6749Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556 Japan
| | - Ryuji Murakami
- grid.274841.c0000 0001 0660 6749Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, 862-0976 Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.
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18
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Toya R, Watakabe T, Murakami D, Matsuyama T, Saito T, Fukugawa Y, Nishimoto K, Orita Y, Oya N. Concurrent Chemoradiotherapy With Docetaxel, Cisplatin, and 5-Fluorouracil for T3 N0 Glottic Carcinoma Without Vocal Cord Fixation. Anticancer Res 2022; 42:205-209. [PMID: 34969726 DOI: 10.21873/anticanres.15474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We retrospectively evaluated the efficacy and toxicity of concurrent chemoradiotherapy (CCRT) with docetaxel, cisplatin, and 5-fluorouracil (TPF) for T3 N0 glottic carcinoma without vocal cord fixation. PATIENTS AND METHODS Twenty-five patients underwent TPF-CCRT without elective nodal irradiaion (ENI). After the RT of 40 Gy, five patients (20%) without tumor regression underwent surgery. Others underwent RT with a median total dose of 66 Gy. RESULTS Of the five patients who underwent surgery after the RT of 40 Gy, two showed residual carcinoma pathologically and the other three were confirmed to have complete pathological response to the treatment. The 5-year local control rate was 87%. No patients exhibited regional failure. No acute toxicities of grade 5 or late toxicities ≥grade 3 were observed. CONCLUSION TPF-CCRT provides excellent tumor control with acceptable toxicities. CCRT while omitting ENI is a reasonable approach for T3 N0 glottic carcinoma without vocal cord fixation.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kohei Nishimoto
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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19
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Yamana K, Inoue J, Yoshida R, Sakata J, Nakashima H, Arita H, Kawaguchi S, Gohara S, Nagao Y, Takeshita H, Maeshiro M, Liu R, Matsuoka Y, Hirayama M, Kawahara K, Nagata M, Hirosue A, Toya R, Murakami R, Kuwahara Y, Fukumoto M, Nakayama H. Extracellular vesicles derived from radioresistant oral squamous cell carcinoma cells contribute to the acquisition of radioresistance via the miR-503-3p-BAK axis. J Extracell Vesicles 2021; 10:e12169. [PMID: 34894384 PMCID: PMC8665688 DOI: 10.1002/jev2.12169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 12/15/2022] Open
Abstract
Despite advancements in treatments, oral squamous cell carcinoma (OSCC) has not significantly improved in prognosis or survival rate primarily due to the presence of treatment-resistant OSCC. The intercellular communication between tumour cells is a molecular mechanism involved in acquiring OSCC treatment resistance. Extracellular vesicles (EVs) and encapsulated miRNAs are important mediators of intercellular communication. Here, we focused on EVs released from clinically relevant radioresistant (CRR) OSCC cells. Additionally, we evaluated the correlation between miRNA expression in the serum samples of patients who showed resistance to radiotherapy and in EVs released from CRR OSCC cells. We found that EVs released from CRR OSCC cells conferred radioresistance to radiosensitive OSCC cells via miR-503-3p contained in EVs. This miR-503-3p inhibited BAK and impaired the caspase cascade to suppress radiation-induced apoptosis. Furthermore, OSCC cells with BAK knockdown had increased radioresistance. Additionally, the expression of circulating miR-503-3p in patients with OSCC was correlated with a poor treatment response and prognosis of radiotherapy. Our results provide new insights into the relationship between EVs and the radioresistance of OSCC and suggest that the miR-503-3p-BAK axis may be a therapeutic target and that circulating miR-503-3p is a useful prognostic biomarker in the radiotherapy of OSCC.
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Affiliation(s)
- Keisuke Yamana
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Junki Inoue
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Junki Sakata
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Hikaru Nakashima
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Hidetaka Arita
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Sho Kawaguchi
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Shunsuke Gohara
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Yuka Nagao
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Hisashi Takeshita
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Manabu Maeshiro
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Rin Liu
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Yuichiro Matsuoka
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Masatoshi Hirayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Kenta Kawahara
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Masashi Nagata
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation OncologyKumamoto University Hospital, Kumamoto, Japan
| | - Ryuji Murakami
- Department of Medical Imaging, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
| | - Yoshikazu Kuwahara
- Radiation Biology and Medicine, Faculty of MedicineTohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Manabu Fukumoto
- Department of Molecular PathologyTokyo Medical University, Tokyo, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life SciencesKumamoto University, Kumamoto, Japan
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20
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Yamaguchi K, Saito T, Toya R, Tomitaka E, Matsuyama T, Fukugawa Y, Watakabe T, Otsuka H, Oya N. Palliative radiotherapy for painful lymph node metastases. Radiat Oncol 2021; 16:178. [PMID: 34530897 PMCID: PMC8447670 DOI: 10.1186/s13014-021-01900-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is limited evidence concerning radiotherapy for painful lymph node metastases (PLM). We evaluated the effectiveness of radiotherapy for PLM using the International Consensus Endpoint in a subgroup analysis of a prospective observational study. METHODS In the primary study, 302 patients received radiotherapy for painful tumors. Among them, those treated with palliative radiotherapy for PLM were analyzed in the present study. We used the Brief Pain Inventory short form to evaluate the intensity of pain and the pain interference in patient's life. We collected the Brief Pain Inventory and analgesic data at baseline and at 1, 2, and 3 months after the start of radiotherapy. Pain response was assessed using the International Consensus Endpoint. Patients were diagnosed with a predominance of other pain (POP) if non-index pain of a malignant or unknown origin was present and had a greater 'worst pain' score than the index pain. RESULTS Radiotherapy for PLM was performed on 25 patients. In total, 15 (60%) patients experienced a pain response. The pain response rates for evaluable patients were 66%, 67%, and 57% at 1-, 2-, and 3-month follow-ups, respectively. At baseline and at 1, 2, and 3 months, the median index pain scores were 7, 2, 0, and 0.5, respectively. At 1 month, all pain interference scores were significantly reduced from baseline. Four (16%) patients experienced POP within three months. CONCLUSION Radiotherapy for PLM improved pain intensity and pain interference. Palliative radiotherapy may be a viable treatment option for PLM.
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Affiliation(s)
- Kohsei Yamaguchi
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan. .,Department of Radiation Oncology, Arao Municipal Hospital, Arao, Japan. .,Department of Radiation Oncology, Kumamoto Medical Center, Kumamoto, Japan.
| | - Tetsuo Saito
- Department of Radiation Oncology, Arao Municipal Hospital, Arao, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.,Department of Radiation Oncology, Hitoyoshi Medical Center, Hitoyoshi, Japan
| | - Etsushi Tomitaka
- Department of Radiation Oncology, Kumamoto Medical Center, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.,Department of Radiation Oncology, Hitoyoshi Medical Center, Hitoyoshi, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.,Department of Radiation Oncology, Hitoyoshi Medical Center, Hitoyoshi, Japan
| | - Hirohito Otsuka
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.,Department of Radiation Oncology, Kumamoto Medical Center, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
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21
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Matsumoto T, Toya R, Shimohigashi Y, Watakabe T, Matsuyama T, Saito T, Fukugawa Y, Kai Y, Oya N. Plan Quality Comparisons Between 3D-CRT, IMRT, and VMAT Based on 4D-CT for Gastric MALT Lymphoma. Anticancer Res 2021; 41:3941-3947. [PMID: 34281857 DOI: 10.21873/anticanres.15190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We compared three-dimensional conformal RT (3D-CRT), intensity-modulated radiotherapy (IMRT), and volumetric modulated arc therapy (VMAT) for gastric mucosa-associated lymphoid tissue (MALT) lymphoma using four-dimensional computed tomography (4D-CT) images. PATIENTS AND METHODS Three treatment plans of 3D-CRT, IMRT, and VMAT with 30 Gy were created based on 4D-CT images of seven patients. We calculated D95, homogeneity index (HI), and conformity index (CI) of planning target volume, and organs at risk doses. RESULTS There was no significant difference among the three plans in D95. HI of the IMRT plan was significantly better than that of the VMAT (p=0.047) and 3D-CRT (p=0.047) plans. CIs of the IMRT and VMAT plans were significantly better than those of the 3D-CRT plan (p=0.047 and p=0.047, respectively). Dmean of the liver for 3D-CRT was significantly higher than that for the IMRT (p=0.047) and VMAT (p=0.047) plans. CONCLUSION The IMRT plan yields the best plan quality for gastric MALT lymphoma.
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Affiliation(s)
- Tadashi Matsumoto
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | | | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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22
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Saito T, Murotani K, Yamaguchi K, Toya R, Tomitaka E, Watakabe T, Oya N. Influence of pain duration on pain outcomes following palliative radiotherapy for painful tumors: the sooner the irradiation, the better? Strahlenther Onkol 2021; 197:916-925. [PMID: 33783573 DOI: 10.1007/s00066-021-01760-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/02/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE The influence of pre-radiotherapy pain duration on post-treatment outcomes was assessed. METHODS Patients that received palliative radiotherapy were analyzed in a prospective observational study investigating curative and palliative radiotherapy. Brief Pain Inventory data were acquired at baseline and 1, 2, and 3 months after commencing irradiation. The pain response in terms of the index pain (i.e., pain caused by the irradiated tumors) was assessed using the International Consensus Endpoint. Patients were diagnosed with predominance of other pain (POP) if non-index pain of malignant or unknown origin was present and showed a higher pain score than the index pain. Competing risk analyses were performed in which deaths without the pain endpoints were considered as competing events. RESULTS Of 229 patients analyzed, 123 (54%) experienced a pain response and 43 (19%) experienced POP. Multivariable analyses using the Fine-Gray model revealed that patients with shorter pain duration (< 1 month) had higher cumulative incidence of pain response (subdistribution hazard ratio, 2.43; 95% confidence interval [CI], 1.35-4.38) and POP (subdistribution hazard ratio, 4.22; 95% CI, 1.30-13.70) compared with patients with longer pain duration (≥ 4 months). For patients with a pain duration of less than 1 month, cumulative incidence of pain response was estimated to be 69% (95% CI, 53-85%) and cumulative incidence of POP was estimated to be 15% (95% CI, 3-28%) at 1‑month follow-up. CONCLUSION Commencing palliative radiotherapy earlier may improve the probability of patients achieving a pain response, although POP may be more frequent.
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Affiliation(s)
- Tetsuo Saito
- Department of Radiation Oncology, Arao Municipal Hospital, Kumamoto, Japan. .,Graduate School of Medicine, Kurume University, Fukuoka, Japan.
| | - Kenta Murotani
- Biostatistics Center, Graduate School of Medicine, Kurume University, Fukuoka, Japan
| | - Kohsei Yamaguchi
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Etsushi Tomitaka
- Department of Radiation Oncology, Kumamoto Medical Center, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan.,Department of Radiation Oncology, Hitoyoshi Medical Center, Hitoyoshi, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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23
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Minamitake A, Murakami R, Sakamoto F, Yoshida R, Sakata J, Hirosue A, Kawahara K, Yamana K, Nakayama H, Toya R, Shiraishi S. Can MRI-derived depth of invasion predict nodal recurrence in oral tongue cancer? Oral Radiol 2021; 37:641-646. [PMID: 33469800 DOI: 10.1007/s11282-020-00505-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/18/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate the prognostic value of preoperative radiological findings for nodal recurrence in clinically node-negative (cN0) patients with oral tongue squamous cell carcinoma (SCC). METHODS The study population consisted of 52 patients with cT1-2N0 oral tongue SCC classified according to the 7th edition of the Union for International Cancer Control (UICC) staging system. The subjects had undergone preoperative radiological examinations, including magnetic resonance imaging (MRI) and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography. All patients were treated with local resection and watchful waiting for neck management. Using an unpaired t test, Pearson's chi-squared test, and the Kaplan-Meier method, the MRI-derived depth of invasion (DOI), the standardized uptake value (SUV) on FDG-PET, and the T stage according to the 7th and 8th UICC were assessed as prognostic factors. RESULTS The MRI-derived DOI was recorded as ≤ 5 mm in 24 patients and > 5 mm in 28 patients. During the follow-up period, nine patients exhibited nodal recurrence, with the MRI-derived DOI being significantly higher in patients with positive than in those with negative (p = 0.011). The SUV was not significant. Five-year cumulative nodal recurrence probabilities were 4.5% for patients with an MRI-derived DOI ≤ 5 mm, while it was 32.1% for > 5 mm (p = 0.013). Although the T classifications were not significant, none of our patients whose T stage according to the 8th UICC was T1 suffered nodal recurrence. CONCLUSIONS MRI-derived DOI can predict nodal recurrence, while preoperative information may assist in treatment planning for oral tongue SCC.
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Affiliation(s)
- Anri Minamitake
- Course of Radiological Sciences, Graduate School of Health Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto City, Kumamoto, 862-0976, Japan
| | - Ryuji Murakami
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto City, Kumamoto, 862-0976, Japan.
| | - Fumi Sakamoto
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto City, Kumamoto, 862-0976, Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Junki Sakata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Kenta Kawahara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Keisuke Yamana
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
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24
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Shimohigashi Y, Toya R, Saito T, Kono Y, Doi Y, Fukugawa Y, Watakabe T, Matsumoto T, Kai Y, Maruyama M, Oya N. Impact of four-dimensional cone-beam computed tomography on target localization for gastric mucosa-associated lymphoid tissue lymphoma radiotherapy: reducing planning target volume. Radiat Oncol 2021; 16:14. [PMID: 33446225 PMCID: PMC7807891 DOI: 10.1186/s13014-020-01734-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 12/17/2020] [Indexed: 12/27/2022] Open
Abstract
Background Radiotherapy of gastric mucosa-associated lymphoid tissue (MALT) lymphoma should be delivered to the entire stomach with planning target volume (PTV) that accounts for variations in stomach volume, respiratory movement, and patient set-up error. In this study, we evaluated whether the use of four-dimensional cone-beam computed tomography (4D-CBCT) reduces the PTV. Methods Eight patients underwent radiotherapy with 15 fractions of gastric MALT lymphoma using 4D-CBCT. PTV structures of 5–30 mm margins (5 mm intervals) from the clinical target volume (CTV) delineated based on the 4D-CT images (CTV-4D) were generated. For the target localization, we performed matching based on skin marking (skin matching), bone anatomy (bone matching), and stomach anatomy (4D soft-tissue matching) based on registration between planning CT and 4D-CBCT images from 10 phases. For each patient, we calculated the covering ratio (CR) of the stomach with variable PTV structures, based on the 4D-CBCT images, with a total of 150 phases [CR (%) = (number of covering phases/150 phases) × 100], for three target localization methods. We compared the CR values of the different target localization methods and defined the PTV with an average CR of ≥ 95% for all patients. Results The average CR for all patients increased from 17.9 to 100%, 19.6 to 99.8%, and 33.8 to 100%, in the skin, bone, and 4D soft-tissue matchings, respectively, as the PTV structures increased from 5 to 30 mm. The CR obtained by 4D soft-tissue matching was superior to that obtained by skin (P = 0.013) and bone matching (P = 0.008) for a PTV structure of 15 mm margin. The PTV required an additional margin of 20 mm (average CR: 95.2%), 25 mm (average CR: 99.1%), and 15 mm (average CR: 98.0%) to CTV-4D for the skin, bone, and 4D soft-tissue matchings, respectively. Conclusions This study demonstrates that the use of 4D-CBCT reduces the PTV when applying 4D soft-tissue matching, compared to skin and bone matchings. Additionally, bone matching does not reduce the PTV as compared with traditional skin matching.
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Affiliation(s)
- Yoshinobu Shimohigashi
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yumiko Kono
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yasuhiro Doi
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Tadashi Matsumoto
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Masato Maruyama
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Kai Y, Toya R, Saito T, Matsuyama T, Fukugawa Y, Shiraishi S, Shimohigashi Y, Oya N. Stereotactic Body Radiotherapy Based on 99mTc-GSA SPECT Image-guided Inverse Planning for Hepatocellular Carcinoma. In Vivo 2020; 34:3583-3588. [PMID: 33144471 DOI: 10.21873/invivo.12202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND/AIM A recent planning study suggested that 99mTc-labelled diethylene triamine pentaacetate-galactosyl human serum albumin (99mTc-GSA) single-photon emission computed tomography (SPECT) image-guided inverse planning (IGIP) shows dosimetric superiority to conventional planning in sparing liver function. Here, we report the first clinical translation of 99mTc-GSA SPECT IGIP for stereotactic body radiotherapy (SBRT) in a patient with hepatocellular carcinoma (HCC). CASE REPORT A 60-year-old male developed obstructive jaundice caused by recurrent HCC in segment 1 after hepatic resection. He underwent repeated radiotherapy (RT) consisting of 45 Gy in 15 fractions 8 years ago and 30 Gy in 5 fractions 2 years ago. We performed SBRT consisting of 40 Gy in 8 fractions using 99mTc-GSA SPECT-IGIP. We confirmed the dosimetric superiority of functional IGIP to conventional planning. He achieved complete response as assessed using the target volume. The patient has remained alive without recurrence for 18 months. He did not experience radiation-induced liver disease. CONCLUSION Recurrent HCC was successfully and safely salvaged via re-irradiation with SBRT using 99mTc-GSA SPECT-IGIP.
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Affiliation(s)
- Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | | | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Saito T, Murotani K, Toya R, Tomitaka E, Matsuyama T, Yamaguchi K, Watakabe T, Oya N. Influence of the Pain Duration on Pain Outcomes Following Palliative Radiotherapy for Painful Tumors: The Sooner the Irradiation, the Better? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Saito T, Nakamura N, Murotani K, Shikama N, Takahashi T, Yorozu A, Heianna J, Kubota H, Tomitaka E, Toya R, Yamaguchi K, Oya N. Index and Nonindex Pain Endpoints in Radiation Therapy for Painful Tumors: A Secondary Analysis of a Prospective Observational Study. Adv Radiat Oncol 2020; 5:1118-1125. [PMID: 33305072 PMCID: PMC7718541 DOI: 10.1016/j.adro.2020.09.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/02/2020] [Accepted: 09/22/2020] [Indexed: 01/01/2023] Open
Abstract
Purpose Improving pain interference in daily activities, rather than mere pain reduction, is a desirable endpoint for palliative radiation therapy. The association between pain response and pain interference has been studied almost exclusively in patients with painful bone metastases (PBMs), whereas nonindex pain has scarcely been explored in palliative radiation therapy. We investigated whether index and nonindex pain endpoints are associated with pain interference changes in patients with both PBMs and painful non-bone-metastasis tumors (PNTs). Methods and Materials Brief pain inventory data collected at baseline and at 2 months post-treatment were used to calculate differences in pain interference scores. Pain response in terms of the index pain was assessed using the international consensus endpoint. Patients were diagnosed with predominance of other pain (POP) if nonindex pain of malignant or unknown origin was present and had a greater pain score than the index pain. Results Of 302 patients, 127 (42%) had PBMs and 175 (58%) had PNTs. The median pain interference score, which is based on the mean of the 7 subscale items, decreased to a greater extent among responders than among nonresponders (PBM group: –3.43 vs –0.57 [P = .005]; PNT group: –2.43 vs –0.29 [P < .001]). Moreover, patients without POP experienced a greater reduction in their median pain interference score than did those with POP (PBM group: –2.71 vs +0.43 [P = .004]; PNT group: –2.00 vs +1.57 [P = .007]). The Jonckheere-Terpstra test showed a significant trend across 4 pain response categories in patients with PBMs and those with PNTs (P < .001 for both). Conclusions The index and nonindex pain endpoints were positively and negatively associated with improvement in pain interference, respectively. There was no apparent difference between patients with PBMs and PNTs in terms of the associations of these endpoints with pain interference.
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Affiliation(s)
- Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
- Department of Radiation Oncology, Hitoyoshi Medical Center, Hitoyoshi, Japan
- Graduate School of Medicine, Kurume University, Fukuoka, Japan
- Corresponding author: Tetsuo Saito, MD, PhD
| | - Naoki Nakamura
- Department of Radiation Oncology and Particle Therapy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kenta Murotani
- Biostatistics Center, Graduate School of Medicine, Kurume University, Fukuoka, Japan
| | - Naoto Shikama
- Department of Radiation Oncology, Juntendo University, Tokyo, Japan
| | - Takeo Takahashi
- Department of Radiation Oncology, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Atsunori Yorozu
- Department of Radiation Oncology, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Joichi Heianna
- Department of Radiology, Graduate School of Medical Science University of The Ryukyus, Okinawa, Japan
| | - Hikaru Kubota
- Department of Radiation Oncology, Kobe University Hospital, Hyogo, Japan
| | - Etsushi Tomitaka
- Department of Radiation Oncology, Kumamoto Medical Center, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Kohsei Yamaguchi
- Department of Radiology, Amakusa Central Hospital, Amakusa, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Yoshida R, Gohara S, Sakata J, Matsuoka Y, Hirosue A, Kawahara K, Kawaguchi S, Nagao Y, Yamana K, Nagata M, Fukuma D, Toya R, Murakami R, Hiraki A, Shinohara M, Nakayama H. Onodera's prognostic nutritional index correlates with tumor immune environment and survival in patients with oral squamous cell carcinoma undergoing chemoradiotherapy. Transl Oncol 2020; 13:100850. [PMID: 32854035 PMCID: PMC7452079 DOI: 10.1016/j.tranon.2020.100850] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/29/2020] [Accepted: 08/03/2020] [Indexed: 12/13/2022] Open
Abstract
Pretreatment nutritional and immunological status is useful for predicting survival outcomes for various types of malignant tumors. Our objective was to determine the impact of the pretreatment Onodera's prognostic nutritional index (OPNI) on outcomes of patients who underwent definitive chemoradiotherapy for advanced oral squamous cell carcinoma (OSCC). We reviewed 47 patients treated for OSCC with definitive chemoradiotherapy (CRT) at our institution between January 2004 and December 2011. We determined the OPNI according to the following formula: 10 × serum albumin (g/dL) + 0.005 × total lymphocyte count (per μL). We determined the optimum OPNI cut-off through a receiver operating characteristic analysis. We analyzed the associations between OPNI status and various clinicopathological features and evaluated the effects of OPNI on the prognosis. We examined the relationships between OPNI and systemic inflammatory response parameters and analyzed intratumoral CD8+ T cells and their correlation with OPNI. The optimum OPNI cut-off was 42.7. A Kaplan–Meier curve analysis revealed that low OPNI was significantly associated with poor overall survival and cause-specific survival. The multivariate analysis revealed that low OPNI was independently correlated with poor 5 year overall survival and cause-specific survival. OPNI was significantly correlated with systemic inflammatory response parameters. Intratumoral CD8+ T cell counts in primary tumors were significantly lower for low OPNI than for high OPNI. The present data demonstrate that pretreatment OPNI is a valuable independent prognostic indicator of overall and cause-specific survival in advanced OSCC following definitive CRT. OPNI might reflect the tumor immune microenvironment characterization in OSCC. The optimum Onodera's prognostic nutritional index (OPNI) cut-off was 42.7 in OSCC patients who underwent definitive chemoradiotherapy Low OPNI was significantly associated with poor overall survival and cause-specific survival OPNI was significantly correlated with systemic inflammatory response parameters High-OPNI group showed significantly higher intratumoral CD8+ T cell counts in primary tumors
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Affiliation(s)
- Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan.
| | - Shunsuke Gohara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Junki Sakata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Yuichiro Matsuoka
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Kenta Kawahara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Sho Kawaguchi
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Yuka Nagao
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Keisuke Yamana
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Masashi Nagata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Daiki Fukuma
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryuji Murakami
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Akimitsu Hiraki
- Section of Oral Oncology, Department of Oral and Maxillofacial Surgery, Fukuoka Dental College, Fukuoka, Japan
| | - Masanori Shinohara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan; Itoh Dento-Maxillofacial Hospital, Kumamoto, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Japan
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Sato M, Kato J, Toya R, Ueda T, Igarashi T, Yamada T, Tsuruta H, Hayashida K, Morisaki H. Abrupt Exacerbation of Atrial Functional Mitral Regurgitation During Emergence From General Anesthesia Following Transcatheter Aortic Valve Replacement. A A Pract 2020; 14:e01260. [PMID: 32633928 DOI: 10.1213/xaa.0000000000001260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | | | - Ryo Toya
- From the Departments of Anesthesiology
| | | | | | | | - Hikaru Tsuruta
- Cardiology, Keio University School of Medicine, Tokyo, Japan
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Toya R, Saito T, Matsuyama T, Watakabe T, Yamaguchi K, Murakami D, Honda Y, Mizutari S, Orita Y, Oya N. QUAD shot: an effective cyclical hypofractionated palliative radiotherapy for salivary gland carcinoma. BJR Case Rep 2020; 6:20190132. [PMID: 33299577 PMCID: PMC7709058 DOI: 10.1259/bjrcr.20190132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/23/2020] [Accepted: 05/29/2020] [Indexed: 11/17/2022] Open
Abstract
Surgery with or without post-operative radiotherapy is the mainstay treatment for salivary gland carcinoma (SGC); however, palliative radiotherapy or supportive observation is considered for elderly patients. An 87-year-old female who was diagnosed with SGC in the left parotid gland, with a clinical stage T4aN2bM0 Stage IVA, underwent the Radiation Therapy Oncology Group 8502 “QUAD shot” regimen (14.8 Gy/4 fractions, twice-daily treatment with a 6 h interval, on 2 consecutive days), which were repeated every 4 weeks 3 times using volumetric modulated arc therapy. During and after the treatment, she experienced no acute toxicity but had Grade 1 xerostomia. At 4 months after completion of the treatment, [18F]-fluoro-2-deoxy-D-glucose positron emission tomography/CT revealed a complete metabolic response to the treatment. She is still alive without any evidence of recurrence 9 months after completion of the treatment. The Radiation Therapy Oncology Group 8502 “QUAD shot” regimen using VMAT may be an effective palliative treatment for SGC with minimal toxicity.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kohsei Yamaguchi
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yumi Honda
- Department of Diagnostic Pathology, Kumamoto University Hospital, Kumamoto, Japan
| | - Sachiko Mizutari
- Department of Otolaryngology, Kumamoto Red Cross Hospital, Kumamoto, Japan
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Toya R, Saito T, Yamaguchi K, Matsuyama T, Watakabe T, Matsumoto T, Yoshida R, Hirosue A, Murakami D, Orita Y, Nakayama H, Oya N. Hypofractionated palliative volumetric modulated arc radiotherapy with the Radiation Oncology Study Group 8502 "QUAD shot" regimen for incurable head and neck cancer. Radiat Oncol 2020; 15:123. [PMID: 32460865 PMCID: PMC7251877 DOI: 10.1186/s13014-020-01548-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/22/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND To review a single institutional experience of the Radiation Therapy Oncology Group (RTOG) 8502 "QUAD shot" regimen using volumetric modulated arc radiotherapy (VMAT) for incurable head and neck cancer (HNC). METHODS Thirty-four consecutive patients with HNC were treated with at least one cycle of the RTOG 8502 regimen. Treatment plans included the use of VMAT with 6 MV photons generated by a linear accelerator. Two daily fractions of 3.7 Gy were delivered with an interval of at least 6 h for 2 consecutive days, totaling 14.8 Gy over 4 fractions. This was repeated every 3-4 weeks for a total of three cycles. No concurrent systemic therapy was performed. RESULTS The number of completed cycles was 1 in 6 (18%) patients, 2 in 5 (15%), and 3 in 23 (68%). Tumor response was achieved in 29 (85%) patients and symptom relief in 20 (77%) of 26 patients. Overall response (tumor response or symptom relief) was achieved in 32 (94%) patients. All patients who received 2 or more treatment cycles achieved overall response. Median overall survival (OS) was 5.7 months. Multivariate analysis revealed that completion of all three treatment cycles was significantly associated with better OS (P = 0.002). Grade 2 toxicity was observed in four (12%) patients, but no acute Grade ≥ 3 or late toxicity was observed. CONCLUSIONS The RTOG 8502 "QUAD shot" regimen using VMAT is effective for incurable HNC with highly reduced toxicity. Treatment with multiple cycles is recommended for better treatment response and/or survival.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Kohsei Yamaguchi
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Tadashi Matsumoto
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556 Japan
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32
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Watakabe T, Toya R, Saito T, Matsuyama T, Shiraishi S, Kai Y, Shimohigashi Y, Oya N. High Spatial Resolution Digital Positron Emission Tomography Images With Dedicated Source-to-background Algorithm for Radiotherapy Planning. Anticancer Res 2020; 40:2567-2572. [PMID: 32366401 DOI: 10.21873/anticanres.14227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/28/2020] [Accepted: 03/29/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM To evaluate the utility of high spatial resolution digital positron emission tomography images with the source-to-background ratio (SBR) algorithm for gross tumour volume (GTV) delineation. MATERIALS AND METHODS The bowl and spheres (10-37 mm) were filled with fluoro-2-deoxy-D-glucose to achieve 4-16 times background radioactivity. The images were reconstructed using three isotropic voxel sizes. The SBR and percentage threshold (TH) to SUVmax were calculated. The plots between SBR and TH were fitted using a regression equation. The contoured volumes (CVs) of the spheres were calculated by applying TH. RESULTS TH was 38.6+75.0/SBR for 4 mm voxel size; 39.6+37.0/SBR for 2 mm; and 38.8+35.2/SBR for 1 mm. The mean relative errors between CV and true volume for 4, 2, and 1 mm voxel sizes were 15%, 7%, and 7%, respectively. CONCLUSION The present technique is useful for GTV delineation with reduced contouring error.
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Affiliation(s)
- Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan.,Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Toya R, Saito T, Matsuyama T, Kai Y, Shiraishi S, Murakami D, Yoshida R, Watakabe T, Sakamoto F, Tsuda N, Arimura H, Orita Y, Nakayama H, Oya N. Diagnostic Value of FDG-PET/CT for the Identification of Extranodal Extension in Patients With Head and Neck Squamous Cell Carcinoma. Anticancer Res 2020; 40:2073-2077. [PMID: 32234899 DOI: 10.21873/anticanres.14165] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/15/2020] [Accepted: 02/19/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We evaluated the diagnostic value of functional imaging with [18F]-fluoro-2-deoxy-D-glucose (FDG)-positron emission tomography/computed tomography (PET/CT) for the identification of extranodal extension (ENE) in patients with head and neck squamous cell carcinoma (HNSCC). PATIENTS AND METHODS In this study, 94 patients with HNSCC who underwent FDG-PET/CT were enrolled. We recorded the maximum standardized uptake value (SUVmax), compared the results with pathologic findings, and evaluated the diagnostic performance of using a SUVmax cut-off value for ENE. RESULTS Of the 566 dissected levels examined, 53 (9.4%) exhibited ENE. The mean SUVmax of LN with and without ENE were 6.67 and 1.64, respectively (p<0.001). A receiver operating characteristics (ROC) curve analysis for SUVmax showed an area under the ROC curve of 0.913. A SUVmax cut-off of 3.0 achieved diagnostic performance for identifying ENE with sensitivity, specificity, and accuracy of 81.1%, 94.3% and 93.1%, respectively. CONCLUSION FDG-PET/CT findings using a SUVmax cut-off of 3.0 provides appropriate diagnostic value in identifying ENE.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan.,Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Daizo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Fumi Sakamoto
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriko Tsuda
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hidetaka Arimura
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yorihisa Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Kai Y, Arimura H, Ninomiya K, Saito T, Shimohigashi Y, Kuraoka A, Maruyama M, Toya R, Oya N. Semi-automated prediction approach of target shifts using machine learning with anatomical features between planning and pretreatment CT images in prostate radiotherapy. J Radiat Res 2020; 61:285-297. [PMID: 31994702 PMCID: PMC7246080 DOI: 10.1093/jrr/rrz105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 10/26/2019] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
The goal of this study was to develop a semi-automated prediction approach of target shifts using machine learning architecture (MLA) with anatomical features for prostate radiotherapy. Our hypothesis was that anatomical features between planning computed tomography (pCT) and pretreatment cone-beam computed tomography (CBCT) images could be used to predict the target, i.e. clinical target volume (CTV) shifts, with small errors. The pCT and daily CBCT images of 20 patients with prostate cancer were selected. The first 10 patients were employed for the development, and the second 10 patients for a validation test. The CTV position errors between the pCT and CBCT images were determined as reference CTV shifts (teacher data) after an automated bone-based registration. The anatomical features associated with rectum, bladder and prostate were calculated from the pCT and CBCT images. The features were fed as the input with the teacher data into five MLAs, i.e. three types of artificial neural networks, support vector regression (SVR) and random forests. Since the CTV shifts along the left-right direction were negligible, the MLAs were developed along the superior-inferior and anterior-posterior directions. The proposed framework was evaluated from the residual errors between the reference and predicted CTV shifts. In the validation test, the mean residual error with its standard deviation was 1.01 ± 1.09 mm in SVR using only one feature (one click), which was associated with positional difference of the upper rectal wall. The results suggested that MLAs with anatomical features could be useful in prediction of CTV shifts for prostate radiotherapy.
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Affiliation(s)
- Yudai Kai
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku Fukuoka 812-8582, Japan
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Hidetaka Arimura
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku Fukuoka 812-8582, Japan
| | - Kenta Ninomiya
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku Fukuoka 812-8582, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yoshinobu Shimohigashi
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Akiko Kuraoka
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Masato Maruyama
- Department of Radiological Technology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
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Sakata J, Hirosue A, Yoshida R, Matsuoka Y, Kawahara K, Arita H, Nakashima H, Yamamoto T, Nagata M, Kawaguchi S, Gohara S, Nagao Y, Yamana K, Toya R, Murakami R, Kuwahara Y, Fukumoto M, Nakayama H. Enhanced Expression of IGFBP-3 Reduces Radiosensitivity and Is Associated with Poor Prognosis in Oral Squamous Cell Carcinoma. Cancers (Basel) 2020; 12:cancers12020494. [PMID: 32093285 PMCID: PMC7072421 DOI: 10.3390/cancers12020494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/09/2020] [Accepted: 02/18/2020] [Indexed: 11/16/2022] Open
Abstract
Insulin-like growth factor (IGF) binding protein-3 (IGFBP-3) modulates various cell functions through IGF-dependent or independent mechanisms. However, its biological roles in the radiosensitivity of oral squamous cell carcinoma (OSCC) remain largely unknown. The purpose of this study was to determine the clinical significance and molecular mechanisms of the association between IGFBP-3 and OSCC radiosensitivity. We performed an immunohistochemical analysis of IGFBP-3 in 52 OSCC specimens from patients treated with preoperative chemoradiotherapy and surgery (phase II study). Associations between IGFBP-3 expression and clinicopathological features were also evaluated. In addition, we examined the effects of IGFBP-3 on post-X-ray irradiation radiosensitivity and DNA damage in vitro. High IGFBP-3 expression was significantly correlated with poor chemoradiotherapy responses and prognosis. With IGFBP-3 knockdown, irradiated OSCC cells exhibited significantly higher radiosensitivity compared with that of control cells. Moreover, IGFBP-3 depletion in OSCC cells reduced phosphorylation of the DNA-dependent protein kinase catalytic subunit (DNA-PKcs), which is required for DNA double-strand break repair during non-homologous end joining. These findings indicate that IGFBP-3 may have a significant role in regulating DNA repair and is be a potential biomarker for predicting clinical response to radiotherapy and prognosis in OSCC.
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Affiliation(s)
- Junki Sakata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
- Correspondence: (A.H.); (H.N.); Tel.: +81-96-373-5288 (A.H. & H.N.)
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Yuichiro Matsuoka
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Kenta Kawahara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Hidetaka Arita
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Hikaru Nakashima
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Tatsuro Yamamoto
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Masashi Nagata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Sho Kawaguchi
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Shunsuke Gohara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Yuka Nagao
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Keisuke Yamana
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto 860-8556, Japan;
| | - Ryuji Murakami
- Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0976, Japan;
| | - Yoshikazu Kuwahara
- Radiation Biology and Medicine, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 4-4-1, Komatsushima, Aoba, Sendai, Miyagi 981-8558, Japan;
| | - Manabu Fukumoto
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku, Tokyo 160-8402, Japan;
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan; (J.S.); (R.Y.); (Y.M.); (K.K.); (H.A.); (H.N.); (T.Y.); (M.N.); (S.K.); (S.G.); (Y.N.); (K.Y.)
- Correspondence: (A.H.); (H.N.); Tel.: +81-96-373-5288 (A.H. & H.N.)
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Shimohigashi Y, Doi Y, Kouno Y, Yotsuji Y, Maruyama M, Kai Y, Toya R. Image quality evaluation of in-treatment four-dimensional cone-beam computed tomography in volumetric-modulated arc therapy for stereotactic body radiation therapy. Phys Med 2019; 68:10-16. [PMID: 31726265 DOI: 10.1016/j.ejmp.2019.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/18/2019] [Accepted: 11/01/2019] [Indexed: 11/27/2022] Open
Abstract
In this study, the image quality of in-treatment four-dimensional cone-beam computed tomography (In-4D-CBCT) obtained with various prescription doses (PDs) were quantitatively evaluated in volumetric-modulated arc therapy (VMAT) for stereotactic body radiation therapy (SBRT) of the lungs and liver. To assess image quality, we used a dynamic thorax phantom and three-dimensional (3D) abdominal phantom; In-4D-CBCT images were acquired with various PDs (from 5 to 12 Gy). The In-4D-CBCT with various PDs were compared with the reference images (pre-4D-CBCT). The image quality was evaluated using the signal-to-noise ratio (SNR), the contrast-to-noise ratio (CNR), and the Dice similarity coefficient (DSC). The fiducial marker positions with various PDs were compared with those of the reference images. For the dynamic thorax phantom, the difference between pre- and In-4D-CBCT in terms of SNR and CNR decreased, as the PD increased from 6 to 12 Gy. The median DSC ranged from 0.7 to 0.74, and showed good similarity. For the 3D abdominal phantom, the difference between pre- and In-4D-CBCT in terms of SNR and CNR decreased as the PD increased from 5 to 6 Gy; conversely, it increased as the PD increased from 7 to 8 Gy. The fiducial marker positions were within 1.0 mm for all PDs. We concluded that the image quality of In-4D-CBCT degraded compared with the reference image; however, it was sufficiently accurate for assessing the intra-fractional tumor position in VMAT for SBRT of the lungs and liver both in terms of the target volume similarity and accuracy of the fiducial marker position.
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Affiliation(s)
| | - Yasuhiro Doi
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yumiko Kouno
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yohei Yotsuji
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Masato Maruyama
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Saito T, Yamaguchi K, Toya R, Oya N. Single- Versus Multiple-Fraction Radiation Therapy for Painful Bone Metastases: A Systematic Review and Meta-analysis of Nonrandomized Studies. Adv Radiat Oncol 2019; 4:706-715. [PMID: 31673664 PMCID: PMC6817531 DOI: 10.1016/j.adro.2019.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/12/2019] [Accepted: 06/20/2019] [Indexed: 01/24/2023] Open
Abstract
PURPOSE Single-fraction radiation therapy (RT) is a convenient and cost-effective regimen for the palliation of painful bone metastases, but is still underused. Randomized controlled trials comparing single- versus multiple-fraction RT are limited by generalizability. We compared the pain response rates after single- versus multiple-fraction RT in nonrandomized studies. METHODS AND MATERIALS We searched PubMed and Scopus from the inception of each database through August 2018. We sought to identify nonrandomized studies in which data on pain response rates could be extracted for single- and multiple-fraction RT. Our primary outcomes of interest were the overall and complete pain response rates in evaluable patients. The analysis was performed using a random-effects model with the Mantel-Haenszel method. RESULTS Of the 3933 articles identified through our search, 9 met our inclusion criteria. Five of 9 included studies did not exclude patients with features of complicated bone metastases. A 1 × 8 Gy radiation schedule was frequently used in single-fraction therapy, and schedules of 5 × 4 Gy and 10 × 3 Gy were frequently used in multiple-fraction therapy. In the 9 studies, the overall response rate was 67% (884 of 1321 patients) for patients in the single-fraction arm and 70% (953 of 1360 patients) for those in the multiple-fraction arm (pooled odds ratio [OR]: 0.85; 95% confidence interval [CI], 0.66-1.08). In 5 studies, the complete response rate was 26% (195 of 753 patients) for patients in the single-fraction arm and 35% (289 of 821 patients) for those in the multiple-fraction arm (pooled OR: 0.89; 95% CI, 0.70-1.13). CONCLUSIONS There were no significant differences in the overall and complete response rates between single- and multiple-fraction RT. The effectiveness of single-fraction regimens was shown in nonrandomized settings, which better reflect daily practice than randomized studies. The CIs for the pooled ORs included clinically meaningful differences, and the study results are inconclusive.
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Affiliation(s)
- Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Kato J, Okuda J, Sasaki Y, Toya R, Morisaki H. Efficacy of jaw elevation device (JED®) for maintenance of upper airway patency during transcatheter aortic valve replacement under deep sedation. J Cardiothorac Vasc Anesth 2019. [DOI: 10.1053/j.jvca.2019.07.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Murakami R, Toya R, Sakata J, Hirosue A, Kawahara K, Yoshida R, Nakayama H. Nodal Metastasis in Oral Squamous Cell Carcinoma: Predictive Impact of MRI-Derived Depth of Invasion According to the 8th Edition American Joint Committee on Cancer Staging System. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kai Y, Arimura H, Toya R, Saito T, Matsuyama T, Fukugawa Y, Shimohigashi Y, Maruyama M, Oya N. Applicability of Diagnostic Position PET/CT Images Using a Rigid Image Registration Technique to Delineation of Gross Tumor Volumes for Nasopharyngeal Carcinoma Radiotherapy: An Observer Study. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Saito T, Tomitaka E, Toya R, Oya N. Possible Dose–Response Relationship in Palliative Radiotherapy for Non-bone Painful Lesions. Clin Oncol (R Coll Radiol) 2019; 31:391-398. [DOI: 10.1016/j.clon.2019.03.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/01/2018] [Accepted: 02/25/2019] [Indexed: 11/24/2022]
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Toya R, Matsuyama T, Saito T, Imuta M, Shiraishi S, Fukugawa Y, Iyama A, Watakabe T, Sakamoto F, Tsuda N, Shimohigashi Y, Kai Y, Murakami R, Yamashita Y, Oya N. Impact of hybrid FDG-PET/CT on gross tumor volume definition of cervical esophageal cancer: reducing interobserver variation. J Radiat Res 2019; 60:348-352. [PMID: 30864652 PMCID: PMC6530614 DOI: 10.1093/jrr/rrz004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/14/2019] [Indexed: 05/09/2023]
Abstract
Intensity-modulated radiation therapy is being increasingly used to treat cervical esophageal cancer (CEC); however, delineating the gross tumor volume (GTV) accurately is essential for its successful treatment. The use of computed tomography (CT) images to determine the GTV produces a large degree of interobserver variation. In this study, we evaluated whether the use of [18F]-fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET)/CT fused images reduced interobserver variation, compared with CT images alone, to determine the GTV in patients with CEC. FDG-PET/CT scans were obtained for 10 patients with CEC, imaged positioned on a flat tabletop with a pillow. Five radiation oncologists independently defined the GTV for the primary tumors using routine clinical data; they contoured the GTV based on CT images (GTVCT), followed by contouring based on FDG-PET/CT fused images (GTVPET/CT). To determine the geometric observer variation, we calculated the conformality index (CI) from the ratio of the intersection of the GTVs to their union. The interobserver CI was compared using Wilcoxon's signed rank test. The mean (±SD) interobserver CIs of GTVCT and GTVPET/CT were 0.39 ± 0.15 and 0.58 ± 0.10, respectively (P = 0.005). Our results suggested that FDG-PET/CT images reduced interobserver variation when determining the GTV in patients with CEC. FDG-PET/CT may increase the consistency of the radiographically determined GTV in patients with CEC.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
- Corresponding author. Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan. Tel/Fax: +81 96-373-5522;
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Masanori Imuta
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiyuki Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ayumi Iyama
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Fumi Sakamoto
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Noriko Tsuda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | | | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryuji Murakami
- Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yasuyuki Yamashita
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Shimohigashi Y, Doi Y, Maruyama M, Yotsuji Y, Kai Y, Toya R. EP-1956 Image quality of in-treatment 4D-CBCT obtained at various doses in VMAT for SBRT: a phantom study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32376-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Toya R, Saito T, Kai Y, Shiraishi S, Matsuyama T, Watakabe T, Sakamoto F, Tsuda N, Shimohigashi Y, Yamashita Y, Oya N. PO-0797 Impact of 99mTc-GSA SPECT image-guided inverse planning on DFH parameters for SBRT planning for HCC. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31217-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Doi Y, Shimohigashi Y, Yotsuji Y, Maruyama M, Kai Y, Toya R. Target volume and motion position evaluation of four-dimensional cone-beam CT: comparison with 4D-CT using dynamic thorax phantom. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/ab1054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nakashima H, Yoshida R, Hirosue A, Kawahara K, Sakata J, Arita H, Yamamoto T, Toya R, Murakami R, Hiraki A, Shinohara M, Ito T, Kuwahara Y, Nakayama H. Circulating miRNA-1290 as a potential biomarker for response to chemoradiotherapy and prognosis of patients with advanced oral squamous cell carcinoma: A single-center retrospective study. Tumour Biol 2019; 41:1010428319826853. [DOI: 10.1177/1010428319826853] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
MicroRNAs are a class of small, endogenous, noncoding 18- to 24-nucleotide-long RNAs that can regulate multiple processes related to cancer progression. However, their clinical value in patients with oral squamous cell carcinoma has not yet been fully explored. Therefore, the aim of this study was to investigate the clinical significance of circulating microRNAs in oral squamous cell carcinoma patients. The expression levels of circulating miR-1246 and miR-1290 in healthy volunteers and oral squamous cell carcinoma patients were examined by quantitative real-time polymerase chain reaction. The expression levels of both microRNAs in the radioresistant oral squamous cell carcinoma cell line (SAS-R) and the parent cell line (SAS) and in the conditioned medium obtained from these cell lines were also examined by quantitative real-time polymerase chain reaction. In addition, the correlations between circulating microRNA status and various clinicopathological features in 55 oral squamous cell carcinoma patients with locally advanced oral squamous cell carcinoma who underwent surgery following 5-fluorouracil-based chemoradiotherapy were examined. The expression level of miR-1290 was significantly lower in the plasma of oral squamous cell carcinoma patients than in that of healthy volunteers (p < 0.01). The expression levels of microRNAs in the conditioned medium and in the cells varied from cell to cell. In the clinicopathological analyses, the frequency of patients with low miR-1290 levels was significantly higher among cases with lower pathological differentiation and among those with a poor pathological response for preoperative chemoradiotherapy (p = 0.030 each). Furthermore, Cox regression analysis based on the 5-year overall survival and disease-free survival revealed that miR-1290 status was a significant prognostic factor for patients with oral squamous cell carcinoma (hazard ratio = 0.169, p = 0.008, and hazard ratio = 0.186, p = 0.008, respectively). Circulating miR-1290 status could be a valuable biomarker for predicting the clinical response to chemoradiotherapy as well as overall survival in patients with oral squamous cell carcinoma.
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Affiliation(s)
- Hikaru Nakashima
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryoji Yoshida
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Akiyuki Hirosue
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenta Kawahara
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Junki Sakata
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hidetaka Arita
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tatsuro Yamamoto
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryuji Murakami
- Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Akimitsu Hiraki
- Section of Oral Oncology, Department of Oral and Maxillofacial Surgery, Fukuoka Dental College, Fukuoka, Japan
| | | | - Takaaki Ito
- Department of Pathology and Experimental Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshikazu Kuwahara
- Division of Radiation Biology and Medicine, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Toya R, Saito T, Kai Y, Shiraishi S, Matsuyama T, Watakabe T, Sakamoto F, Tsuda N, Shimohigashi Y, Yamashita Y, Oya N. Impact of 99mTc-GSA SPECT Image-Guided Inverse Planning on Dose-Function Histogram Parameters for Stereotactic Body Radiation Therapy Planning for Patients With Hepatocellular Carcinoma: A Dosimetric Comparison Study. Dose Response 2019; 17:1559325819832149. [PMID: 30858770 PMCID: PMC6402061 DOI: 10.1177/1559325819832149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/17/2019] [Accepted: 01/22/2019] [Indexed: 01/19/2023] Open
Abstract
Purpose: To evaluate the impact of 99mTc-labeled diethylene triamine pentaacetate-galactosyl human serum albumin (99mTc-GSA) single-photon emission computed tomography (SPECT) image-guided inverse planning on the dose–function histogram (DFH) parameters for stereotactic body radiation therapy planning in patients with hepatocellular carcinoma (HCC). Methods: Eleven patients were enrolled in this study. The functional liver structure (FLS) was derived from SPECT thresholds of 60% to 80% of the maximum pixel value. Two treatment plans optimized without FLS (plan C) and with FLS (plan F) were designed for 50 Gy to the planning target volume (PTV). The DFH parameters were calculated as follows: Fx = (sum of the counts within the liver volume receiving a dose >x Gy/sum of the counts within the whole liver volume) × 100. Other parameters for the PTV included D95, mean dose, conformity index (CI), and homogeneity index (HI). Results: Compared with plan C, plan F significantly reduced DFH parameters of F5 to F40 (P < .05). There were no significant differences in the parameters of the PTV of D95, mean dose, CI, and HI and organs at risks (stomach, duodenum, spinal cord, and kidneys) between plans C and F. Conclusion: DFH analyses revealed that 99mTc-GSA SPECT image-guided inverse planning provided dosimetric benefits related to sparing of liver function and may reduce hepatic toxicities.
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Affiliation(s)
- Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan
| | - Shinya Shiraishi
- Department of Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Fumi Sakamoto
- Department of Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Noriko Tsuda
- Department of Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | | | - Yasuyuki Yamashita
- Department of Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Saito T, Toya R, Yoshida N, Shono T, Matsuyama T, Ninomura S, Watakabe T, Sasaki Y, Baba H, Oya N. Spleen Dose-Volume Parameters as a Predictor of Treatment-related Lymphopenia During Definitive Chemoradiotherapy for Esophageal Cancer. In Vivo 2019; 32:1519-1525. [PMID: 30348711 DOI: 10.21873/invivo.11409] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/06/2018] [Accepted: 08/07/2018] [Indexed: 12/24/2022]
Abstract
AIM Our study sought to identify dosimetric predictors of treatment-related lymphopenia during chemoradiotherapy for esophageal cancer. MATERIALS AND METHODS Patients with esophageal cancer who had received definitive chemoradiotherapy at our Institution were retrospectively assessed. The absolute volume of the spleen, body, and bone marrow that had received 5, 10, 20, and 30 Gy and the mean splenic dose were recorded. RESULTS Multivariate linear regression analysis revealed that docetaxel use and spleen dose-volume parameters (V5, V10, V20, V30, and mean splenic dose) were significant independent factors negatively influencing the absolute lymphocyte count at nadir. An increase of 1 Gy in mean splenic dose predicted a 2.9% decrease in nadir absolute lymphocyte count. Univariable logistic regression analysis showed that the mean splenic dose was a significant predictor of grade 4 lymphopenia. None of the body or bone marrow dose-volume parameters significantly predicted lymphopenia. CONCLUSION Higher spleen dose-volume parameters were associated with severe lymphopenia during chemoradiotherapy.
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Affiliation(s)
- Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Naoya Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takashi Shono
- Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Satoshi Ninomura
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Takahiro Watakabe
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yutaka Sasaki
- Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Saito T, Toya R, Oya N. Pain Response Rates After Conventional Radiation Therapy for Bone Metastases in Prospective Nonrandomized Studies: A Systematic Review. Pract Radiat Oncol 2018; 9:81-88. [PMID: 30508601 DOI: 10.1016/j.prro.2018.11.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 10/27/2022]
Abstract
PURPOSE This study aimed to determine the pain response rates after conventional radiation therapy (RT) for painful bone metastases in prospective nonrandomized studies, which better reflect daily practice than randomized controlled trials. METHODS AND MATERIALS A literature search was conducted in PubMed and Scopus for articles published between 2002 and 2018. We only included articles in which pain response after RT was assessed using the International Consensus Endpoint initially published in 2002, or the updated version from 2012. In addition, to be included in this review, the study design was required to be prospective or based on prospectively collected data. Our primary outcomes of interest were the overall and complete response rates after conventional RT for bone metastases. RESULTS Of the 2863 articles identified in our database search, 12 met the inclusion criteria. Six studies excluded patients with features of complicated bone metastases. Only 2 papers reported exclusion criteria regarding analgesic use. Radiation schedules that were frequently used were 1 × 8 Gy, 5 × 4 Gy, and 10 × 3 Gy. The overall response rate in evaluable patients was 55%, and 754 of the 1379 evaluable patients experienced a complete or partial response. The complete response rate was 15% (196 of 1348 evaluable patients). In the intent-to-treat patient group, the overall response rate was 29% (754 of 2559 enrolled patients), and the complete response rate 8% (196 of 2528 enrolled patients). CONCLUSIONS We determined the pain response rates after conventional RT for painful bone metastases in prospective nonrandomized studies. The present review may provide benchmarks for future nonrandomized studies that investigate palliative RT for bone metastases.
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Affiliation(s)
- Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan.
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
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Iyama A, Matsuyama T, Matsumoto E, Araki T, Inokuchi S, Yamashita M, Honda N, Miyake T, Saito T, Toya R, Kai Y, Yamashita Y, Oya N. Effect of metal-containing topical agents on surface doses received during external irradiation. J Radiat Res 2018; 59:794-799. [PMID: 30247674 PMCID: PMC6251421 DOI: 10.1093/jrr/rry078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 07/24/2018] [Indexed: 06/08/2023]
Abstract
The ability of topical metal-containing agents (MCAs) to enhance radiation dermatitis remains controversial. In the present study, we evaluated increases in surface doses associated with topical agents at different application thicknesses and with MCAs versus non-metal containing agents (NMCAs). We assessed two clinically available MCAs, zinc oxide ointment (ZOO) and silver sulfadiazine cream (SSDC), and eight NMCAs. Surface doses were measured using a Markus chamber placed on a polystyrene phantom. To evaluate the role of application thickness, each agent was applied to the chamber in oil-slick (<0.1-mm), 1-mm and 5-mm layers prior to irradiation of a 10 × 10 cm field with 4-, 6- and 10-MV X-ray beams. The surface dose enhancement ratio (SDER) was calculated as the ratio of the surface dose with an agent to the dose without an agent. The SDER values for the eight NMCAs, ZOO and SSDC at an oil-slick thickness were 101.6-104.6% (mean: 103.3%), 104.5% and 105.0%, respectively, using a 6-MV X-ray beam. The corresponding values at a 1-mm thickness were 196.8-237.8% (mean: 215.7%), 229.3% and 201.4%, respectively, and those at a 5-mm thickness were 342.2-382.4% (mean: 357.9%), 357.1% and 352.6%, respectively. A similar tendency was found using 4- and 10-MV X-ray beams. The lack of a significant difference in surface dose enhancement between MCAs and NMCAs, particularly when applied in oil-slick layers, suggests that MCAs do not need to be avoided or applied in a restricted manner during radiotherapy for dosimetric reasons.
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Affiliation(s)
- Ayumi Iyama
- Department of Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
| | - Tomohiko Matsuyama
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
| | - Eriko Matsumoto
- Department of Radiology, Amakusa Central General Hospital, Kumamoto, Japan
| | - Takafumi Araki
- Department of Radiology, Amakusa Central General Hospital, Kumamoto, Japan
| | - Satoshi Inokuchi
- Department of Radiology, Amakusa Central General Hospital, Kumamoto, Japan
| | - Mizuki Yamashita
- Department of Radiology, Amakusa Central General Hospital, Kumamoto, Japan
| | - Noritoshi Honda
- Department of Dermatology, Amakusa Central General Hospital, Kumamoto, Japan
| | - Taiga Miyake
- Department of Dermatology, Amakusa Central General Hospital, Kumamoto, Japan
| | - Tetsuo Saito
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
| | - Ryo Toya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
| | - Yudai Kai
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
| | - Yasuyuki Yamashita
- Department of Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
| | - Natsuo Oya
- Department of Radiation Oncology, Kumamoto University Hospital, 1-1-1, Honjo, Kumamoto, Kumamoto, Japan
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