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Akay S, Pollard JH, Saad Eddin A, Alatoum A, Kandemirli S, Gholamrezanezhad A, Menda Y, Graham MM, Shariftabrizi A. PET/CT Imaging in Treatment Planning and Surveillance of Sinonasal Neoplasms. Cancers (Basel) 2023; 15:3759. [PMID: 37568575 PMCID: PMC10417627 DOI: 10.3390/cancers15153759] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Sinonasal cancers are uncommon malignancies with a generally unfavorable prognosis, often presenting at an advanced stage. Their high rate of recurrence supports close imaging surveillance and the utilization of functional imaging techniques. Whole-body 18F-FDG PET/CT has very high sensitivity for the diagnosis of sinonasal malignancies and can also be used as a "metabolic biopsy" in the characterization of some of the more common subgroups of these tumors, though due to overlap in uptake, histological confirmation is still needed. For certain tumor types, radiotracers, such as 11C-choline, and radiolabeled somatostatin analogs, including 68Ga-DOTATATE/DOTATOC, have proven useful in treatment planning and surveillance. Although serial scans for posttreatment surveillance allow the detection of subclinical lesions, the optimal schedule and efficacy in terms of survival are yet to be determined. Pitfalls of 18F-FDG, such as post-surgical and post-radiotherapy crusting and inflammation, may cause false-positive hypermetabolism in the absence of relapse.
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Affiliation(s)
- Sinan Akay
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Janet H. Pollard
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Assim Saad Eddin
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Aiah Alatoum
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Sedat Kandemirli
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Ali Gholamrezanezhad
- Department of Radiology, Keck School of Medicine, University of Southern California (USC), Los Angeles, CA 90030, USA
| | - Yusuf Menda
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Michael M. Graham
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Ahmad Shariftabrizi
- Division of Nuclear Medicine, Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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Nissan E, Amit U, Baron L, Zabatani A, Urban D, Barshack I, Davidson T. The usefulness of [18F]FDG-PET/CT in detecting and managing cancers with unknown primary site depends on histological subtype. Sci Rep 2021; 11:17732. [PMID: 34489490 PMCID: PMC8421436 DOI: 10.1038/s41598-021-96451-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 08/05/2021] [Indexed: 11/09/2022] Open
Abstract
We assessed the role of [18F]FDG-PET/CT in identifying and managing cancer of unknown primary site (CUP syndrome). We reviewed [18F]FDG-PET/CT scans of individuals with CUP syndrome recorded in clinical referral letters from 2012 to 2019. We evaluated the identification of primary tumor (PT) by [18F]FDG-PET/CT, according to histological subtype, and the impact on clinical management. The median age was 65 years, 36/64 males (56%). PTs were detected in 28/64 (44%) patients. Detection was significantly lower in patients with squamous cell carcinoma (SCC) than with other histologies combined, p = 0.034. Mean age, mean SUVmax (10.6 ± 6.0) and organ involvement were similar between patients with and without discovered PTs; and between patients with SCC and with other histologies combined. However, those with SCC were less likely than the others to present with multi-lesion involvement, p < 0.001. [18F]FDG-PET/CT interpretations apparently affected treatment of 8/28 (29%) patients with PT detected, and in none of the 35 whose PT was not discovered, p < 0.001. [18F]FDG-PET/CT appeared helpful in detecting PT in almost half the patients with CUP syndrome; the lowest rate was for patients with SCC pathology. PET/CT showed limited overall value in guiding clinical management, however benefited those with discovered PT.
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Affiliation(s)
- Ella Nissan
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Uri Amit
- Radiation Oncology Department, Chaim Sheba Medical Center, Tel Hashomer, Israel.,The Dr. Pinchas Borenstein Talpiot Medical Leadership Program, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Leo Baron
- Department of Orthopedic Surgery, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Amit Zabatani
- Department of Orthopedic Surgery, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Damien Urban
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Oncology, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Iris Barshack
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Pathology, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Tima Davidson
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. .,Department of Nuclear Medicine, Chaim Sheba Medical Center, Tel Hashomer, Israel.
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Leclere JC, Delcroix O, Rousset J, Valette G, Robin P, Guezennec C, Le Pennec R, Gujral DM, Abgral M, Ollivier L, Marianowski R, Salaun PY, Schick U, Abgral R. Integration of 18-FDG PET/CT in the Initial Work-Up to Stage Head and Neck Cancer: Prognostic Significance and Impact on Therapeutic Decision Making. Front Med (Lausanne) 2020; 7:273. [PMID: 32714934 PMCID: PMC7344296 DOI: 10.3389/fmed.2020.00273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/18/2020] [Indexed: 12/25/2022] Open
Abstract
Background: The objective of this study was to assess the therapeutic and prognostic impact of integrating18F-fluorodeoxyglucose (18-FDG) positron emission tomography (PET)/computed tomography (CT) into work-up (WU) at initial staging of patients with head and neck squamous cell carcinoma (HNSCC). Method: 477 consecutive patients (414M/63F, mean age 62.3 ± 9.7 years) with newly diagnosed HNSCC who underwent pre-treatment 18-FDG PET/CT were retrospectively included. The 18-FDG PET/CT stage (sPET) was compared to the conventional work-up stage (sCWU). A group of cancer specialists determined whether integrating PET/CT into WU at initial staging had an impact on the therapeutic decision, classifying the clinical impact as high (change in therapeutic modality), medium (change in the radiotherapy or surgical procedure), or low (modification of TNM staging and/or detection of synchronous cancer without high or medium impact). Three-year overall survival (OS) was considered as primary endpoint of the prognostic analysis. Results: 18-FDG PET/CT had a clinical impact in 221 patients (46.3%) with a medium or high impact on management in 94 (19.5%) patients. Medium and high impact of 18-FDG PET/CT was statistically equivalent between sCWU-stage I/II and III/IV subgroups (p = 0.02). 42 patients were PET/CT-upstaged from early stage I/II to advanced stage III/IV and had a significantly lower 3-year OS than those with concordant CWU and 18-FDG PET/CT early stage (54.8 vs. 82.6%, p = 0.001). Conclusion: This study demonstrated that implementing 18-FDG PET/CT in the initial WU of HNSCC provides valuable staging information with a better prognostic stratification. Patient management was modified for any disease stage, even for early stage I-II, with consequences on survival.
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Affiliation(s)
| | - Olivier Delcroix
- Department of Nuclear Medicine, Brest University Hospital, Brest, France
| | - Jean Rousset
- Department of Radiology, Military Hospital Brest, Brest, France
| | - Gerald Valette
- Department of Head and Neck Surgery, Brest University Hospital, Brest, France
| | - Philippe Robin
- Department of Nuclear Medicine, Brest University Hospital, Brest, France.,EA 3878 GETBO IFR 148, University of Western Brittany, Brest, France
| | | | - Romain Le Pennec
- Department of Nuclear Medicine, Brest University Hospital, Brest, France
| | - Dorothy M Gujral
- Clinical Oncology Department, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, United Kingdom.,Department of Cancer and Surgery, Imperial College London, London, United Kingdom
| | - Maelig Abgral
- Department of Nuclear Medicine, Brest University Hospital, Brest, France
| | - Luc Ollivier
- Department of Radiotherapy, Brest University Hospital, Brest, France
| | - Remi Marianowski
- Department of Head and Neck Surgery, Brest University Hospital, Brest, France
| | - Pierre-Yves Salaun
- Department of Nuclear Medicine, Brest University Hospital, Brest, France.,EA 3878 GETBO IFR 148, University of Western Brittany, Brest, France
| | - Ulrike Schick
- Department of Radiotherapy, Brest University Hospital, Brest, France
| | - Ronan Abgral
- Department of Nuclear Medicine, Brest University Hospital, Brest, France.,EA 3878 GETBO IFR 148, University of Western Brittany, Brest, France
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Yoon S, Ryu KH, Baek HJ, Kim TH, Moon JI, Choi BH, Park SE, Ha JY, Song DH, An HJ, Heo YJ. Cervical Lymph Nodes Detected by F-18 FDG PET/CT in Oncology Patients: Added Value of Subsequent Ultrasonography for Determining Nodal Metastasis. ACTA ACUST UNITED AC 2019; 56:medicina56010016. [PMID: 31906183 PMCID: PMC7022812 DOI: 10.3390/medicina56010016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 12/29/2019] [Accepted: 12/30/2019] [Indexed: 11/16/2022]
Abstract
Background and Objectives: To investigate the diagnostic performance of F-18 fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) and subsequent ultrasonography (US) for determining cervical nodal metastasis in oncology patients. Materials and Methods: Fifty-nine cervical lymph nodes (LNs) initially detected by PET/CT with subsequent neck US were included in this retrospective study. All LNs were subjected to US-guided fine-needle aspiration or core needle biopsy. The maximum standardized uptake value (SUVmax) and sonographic features were assessed. Results: Forty-three of 59 cervical LNs detected by PET/CT were malignant. PET/CT alone showed a highest diagnostic value for metastatic LNs with 81.4% sensitivity, 68.8% specificity, and 78% accuracy when SUVmax ≥5.8 was applied as an optimal cut-off value. Combined PET/CT and subsequent US diagnoses for determining nodal metastasis showed the following diagnostic performance: 81.4% sensitivity, 87.5% specificity, and 83.1% accuracy. There was a significant difference in the diagnostic performance between the two diagnostic imaging approaches (p = 0.006). Conclusions: Combined diagnosis using subsequent US showed a significantly higher diagnostic performance for determining nodal metastasis in the neck. Therefore, we believe that our proposed diagnostic strategy using subsequent US can be helpful in evaluating cervical LNs on PET/CT. Moreover, our results clarify the need for US-guided tissue sampling in oncology patients.
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Affiliation(s)
- Seokho Yoon
- Department of Nuclear Medicine and Molecular Imaging, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea;
| | - Kyeong Hwa Ryu
- Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (K.H.R.); (J.I.M.); (B.H.C.); (S.E.P.); (J.Y.H.)
| | - Hye Jin Baek
- Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (K.H.R.); (J.I.M.); (B.H.C.); (S.E.P.); (J.Y.H.)
- Department of Radiology, Institute of Health Sciences, Gyeongsang National University School of Medicine, 816-15 Jinju-daero, Jinju 52727, Korea
- Correspondence: ; Tel.: +82-55-214-3140
| | - Tae Hoon Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea;
| | - Jin Il Moon
- Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (K.H.R.); (J.I.M.); (B.H.C.); (S.E.P.); (J.Y.H.)
| | - Bo Hwa Choi
- Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (K.H.R.); (J.I.M.); (B.H.C.); (S.E.P.); (J.Y.H.)
| | - Sung Eun Park
- Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (K.H.R.); (J.I.M.); (B.H.C.); (S.E.P.); (J.Y.H.)
| | - Ji Young Ha
- Department of Radiology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (K.H.R.); (J.I.M.); (B.H.C.); (S.E.P.); (J.Y.H.)
| | - Dae Hyun Song
- Department of Pathology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (D.H.S.); (H.J.A.)
| | - Hyo Jung An
- Department of Pathology, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea; (D.H.S.); (H.J.A.)
| | - Young Jin Heo
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, 75, Bokji-ro, Busanjin-gu, Busan 47392, Korea
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5
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Joo YH, Cho JK, Koo BS, Kwon M, Kwon SK, Kwon SY, Kim MS, Kim JK, Kim H, Nam I, Roh JL, Park YM, Park IS, Park JJ, Shin SC, Ahn SH, Won S, Ryu CH, Yoon TM, Lee G, Lee DY, Lee MC, Lee JK, Lee JC, Lim JY, Chang JW, Jang JY, Chung MK, Jung YS, Cho JG, Choi YS, Choi JS, Lee GH, Chung PS. Guidelines for the Surgical Management of Oral Cancer: Korean Society of Thyroid-Head and Neck Surgery. Clin Exp Otorhinolaryngol 2019; 12:107-144. [PMID: 30703871 PMCID: PMC6453784 DOI: 10.21053/ceo.2018.01816] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 12/14/2018] [Indexed: 01/08/2023] Open
Abstract
Korean Society of Thyroid-Head and Neck Surgery appointed a Task Force to provide guidance on the implementation of a surgical treatment of oral cancer. MEDLINE databases were searched for articles on subjects related to “surgical management of oral cancer” published in English. Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. The quality of evidence was rated with use RoBANS (Risk of Bias Assessment Tool for Nonrandomized Studies) and AMSTAR (A Measurement Tool to Assess the Methodological Quality of Systematic Reviews). Evidence-based recommendations for practice were ranked according to the American College of Physicians grading system. Additional directives are provided as expert opinions and Delphi questionnaire when insufficient evidence existed. The Committee developed 68 evidence-based recommendations in 34 categories intended to assist clinicians and patients and counselors, and health policy-makers. Proper surgical treatment selection for oral cancer, which is directed by patient- and subsite-specific factors, remains the greatest predictor of successful treatment outcomes. These guidelines are intended for use in conjunction with the individual patient’s treatment goals.
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Affiliation(s)
- Young-Hoon Joo
- Department of Otorhinolaryngology Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Keun Cho
- Department of Otorhinolaryngology Head and Neck Surgery, Inje University College of Medicine, Busan, Korea
| | - Bon Seok Koo
- Department of Otorhinolaryngology Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Korea
| | - Minsu Kwon
- Department of Otorhinolaryngology Head and Neck Surgery, Eulji University School of Medicine, Daejeon, Korea
| | - Seong Keun Kwon
- Department of Otorhinolaryngology Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Soon Young Kwon
- Department of Otorhinolaryngology Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Min-Su Kim
- Department of Otorhinolaryngology Head and Neck Surgery, CHA University School of Medicine, Seongnam, Korea
| | - Jeong Kyu Kim
- Department of Otorhinolaryngology Head and Neck Surgery, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Heejin Kim
- Department of Otorhinolaryngology Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea
| | - Innchul Nam
- Department of Otorhinolaryngology Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong-Lyel Roh
- Department of Otorhinolaryngology Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Min Park
- Department of Otorhinolaryngology Head and Neck Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Il-Seok Park
- Department of Otorhinolaryngology Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea
| | - Jung Je Park
- Department of Otorhinolaryngology Head and Neck Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Sung-Chan Shin
- Department of Otorhinolaryngology Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Soon-Hyun Ahn
- Department of Otorhinolaryngology Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Seongjun Won
- Department of Otorhinolaryngology Head and Neck Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Chang Hwan Ryu
- Department of Otorhinolaryngology Head and Neck Surgery, National Cancer Center, Goyang, Korea
| | - Tae Mi Yoon
- Department of Otorhinolaryngology Head and Neck Surgery, Chonnam National University Medical School, Hwasun, Korea
| | - Giljoon Lee
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Doh Young Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-Chul Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Joon Kyoo Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Chonnam National University Medical School, Hwasun, Korea
| | - Jin Choon Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Jae-Yol Lim
- Department of Otorhinolaryngology Head and Neck Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Won Chang
- Department of Otorhinolaryngology Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jeon Yeob Jang
- Department of Otorhinolaryngology Head and Neck Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Man Ki Chung
- Department of Otorhinolaryngology Head and Neck Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yuh-Seok Jung
- Department of Otorhinolaryngology Head and Neck Surgery, National Cancer Center, Goyang, Korea
| | - Jae-Gu Cho
- Department of Otorhinolaryngology Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Yoon Seok Choi
- Department of Otorhinolaryngology Head and Neck Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Jeong-Seok Choi
- Department of Otorhinolaryngology Head and Neck Surgery, Inha University School of Medicine, Incheon, Korea
| | - Guk Haeng Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Phil-Sang Chung
- Department of Otorhinolaryngology Head and Neck Surgery, Dankook University College of Medicine, Cheonan, Korea
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Tzelnick S, Bernstine H, Domachevsky L, Soudry E. Clinical Implications of Incidental Sinonasal Positive FDG Uptake on PET-CT. Otolaryngol Head Neck Surg 2019; 160:729-733. [DOI: 10.1177/0194599818821862] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objectives Fluorodeoxyglucose positron emission tomography–computed tomography (FDG PET-CT) has been increasingly used in the past decade. Incidental FDG-avid findings are encountered in these studies, several of which with clinical significance. However, the significance of incidental FDG-avid sinonasal findings has not been studied to date. Study Design Retrospective cohort study. Setting A single tertiary medical center. Materials and Methods The medical records were reviewed of patients with incidental sinonasal positive FDG uptake between 2007 and 2016 who referred for further otolaryngological diagnostic workup. Results A total of 26 patients were identified, all of whom underwent a diagnostic surgical procedure. Histopathology revealed chronic inflammation (n = 12, 46.1%), malignancy (n = 7, 26.9%), inverted papilloma (n = 4, 15.5%), and fungal infections (n = 3, 11.5%). A unilateral maxillary sinus with FDG uptake was documented for 16 (61.5%) patients. CT evidence of bilateral disease and mucosal or sinus wall thickening correlated with inflammatory disease. Conclusions Incidental lesions with positive FDG uptake in the sinonasal cavities are at a high risk (40%) of being neoplastic. A diagnostic biopsy is advocated in these cases.
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Affiliation(s)
- Sharon Tzelnick
- Department of Otolaryngology–Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel
| | - Hanna Bernstine
- Department of Nuclear Medicine, Rabin Medical Center, Petah Tikva, Israel
| | - Liran Domachevsky
- Department of Nuclear Medicine, Rabin Medical Center, Petah Tikva, Israel
| | - Ethan Soudry
- Department of Otolaryngology–Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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7
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Fanelli M, Locopo N, Gattuso D, Gasparini G. Assessment of Tumor Vascularization: Immunohistochemical and Non-Invasive Methods. Int J Biol Markers 2018; 14:218-31. [PMID: 10669950 DOI: 10.1177/172460089901400405] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Growth of solid tumors beyond a certain mass is dependent on the vascular bed from pre-existing host vasculature. The process of angiogenesis is essential not only for primary tumor growth but also for metastasis. The number of microvessels within the invasive component of a primary tumor reflects the degree of tumor angiogenesis. At present the most widely used method to assess neovascularization is the quantitation of intratumoral microvessel density (IMD) by immunohistochemical methods in which specific markers for endothelial cells are employed. In this paper we analyze the different methods used to assess IMD, as well as their advantages and potential methodological pitfalls. Several studies have shown a close correlation between IMD, tumor growth and the occurrence of metastasis, suggesting that IMD is a prognostic indicator of clinical relevance. Furthermore, preliminary studies suggest that determination of angiogenesis may predict responsiveness to some forms of conventional anticancer therapy. Although the histological microvessel density technique is the current gold standard to characterize tumor angiogenesis, it may not be the ideal tool for clinical purposes because it needs to be performed on biopsy material and does not assess the functional pathways involved in the angiogenic activity of tumors. Non-invasive assessment of tumor vascularity is possible in vivo by means of Doppler sonography, dynamic contrast-enhanced magnetic resonance imaging (MRI) and positron emission tomography (PET). These methods may be preferable to histological assay because they are non-invasive, survey the entire tumor, reflect both anatomic and physiologic characteristics, and may be useful to monitor the activity of antiangiogenic therapies.
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Affiliation(s)
- M Fanelli
- Division of Medical Oncology, Azienda Ospedaliera Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
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8
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Swaid F, Downs D, Rosemurgy AS. A practical approach to liver metastasis from unknown primary cancer: What surgeons need to know. Cancer Genet 2016; 209:559-566. [DOI: 10.1016/j.cancergen.2016.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 08/04/2016] [Indexed: 12/18/2022]
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9
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Périé S, Montravers F, Kerrou K, Angelard B, Tassart M, Talbot JN, Lacau St Guily J. Fluorodeoxyglucose Imaging Using a Coincidence Gamma Camera to Detect Head and Neck Squamous Cell Carcinoma and Response to Chemotherapy. Ann Otol Rhinol Laryngol 2016; 111:763-71. [PMID: 12296328 DOI: 10.1177/000348940211100901] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This prospective study was performed to evaluate the ability of a dual-head gamma camera with fluorine-18 fluorodeoxyglucose coincidence detection emission tomography (FDG-CDET) to detect primary tumor and cervical lymph nodes in head and neck squamous cell carcinoma (HNSCC), and to show the response of the carcinoma to chemotherapy. The findings were compared with those of physical examination, computed tomography (CT), and histopathology, before treatment in 61 patients, and after induction chemotherapy in 34 of them. Before treatment, the primary was detected in 93%, 79%, and 95% of cases on panendoscopy, CT, and FDG-CDET, respectively. After chemotherapy, 34 patients were evaluable for response of the primary tumor. Surgical resection was performed in 23 of them: agreement with histopathologic results for response to treatment was 74%, 69%, and 78% for panendoscopy, CT, and FDG-CDET, respectively. No surgical resection was performed in 11 of the 34 patients, but biopsies were performed before radiotherapy, and their rates of agreement with histopathologic results for response to treatment were 75%, 75%, and 67% on panendoscopy, CT, and FDG-CDET, respectively. For cervical lymph nodes, 245 sites were resected in 41 patients, and FDG-CDET appeared competitive with CT in detecting metastatic neck disease, especially after neoadjuvant chemotherapy; the accuracy was 93%. These results demonstrated the ability of FDG-CDET to detect primary tumors and cervical lymph nodes in HNSCC and to show its response to chemotherapy, as compared to the ability of CT and panendoscopy. It may be a complementary tool to evaluate residual disease after induction chemotherapy, although higher sensitivity would be required for FDG-CDET to be considered as a staging modality.
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Affiliation(s)
- Sophie Périé
- Service d'Oto-Rhino-Laryngologie et de Chirurgie Cervico-Faciale, Faculté de Médecine Saint Antoine, Université Paris VI, Hôpital Tenon, France
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10
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Lee M, Ramaswamy MR, Lilien DL, Nathan CAO. Unilateral Vocal Cord Paralysis Causes Contralateral False-Positive Positron Emission Tomography Scans of the Larynx. Ann Otol Rhinol Laryngol 2016; 114:202-6. [PMID: 15825569 DOI: 10.1177/000348940511400306] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Positron emission tomography (PET) is used in the management of head and neck cancers. It identifies tissue with increased metabolic activity and is not specific for malignancy. A false-positive PET scan of the larynx is associated with vocal cord paralysis. We reviewed PET scan reports of patients with lung cancer from 1998 to 2001 to identify patients with increased 18-fluoro-2-deoxyglucose uptake in the larynx without a known history of head and neck cancer and then correlated this increased uptake with laryngoscopic findings. There were 17 patients who had a positive PET finding in the larynx. Fifteen of those had a false-positive PET scan in the larynx. All had contralateral vocal cord paralysis. Two patients were noted to have head and neck cancer. We conclude that vocal cord paralysis can cause a false-positive PET scan on the contralateral side of the larynx due to overactivity of laryngeal muscles that compensate for the paralyzed cord.
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Affiliation(s)
- Michael Lee
- Department of Otolaryngology, Louisiana State University-Health Sciences Center, Shreveport, Louisiana 71130-3932, USA
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11
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Bhatnagar AK, Heron DE, Schaitkin B. Perineural Invasion of Squamous Cell Carcinoma of the Lip with Occult Involvement of the Infra-orbital Nerve Detected by PET-CT and Treated with MRI-based IMRT: A Case Report. Technol Cancer Res Treat 2016; 4:251-3. [PMID: 15896080 DOI: 10.1177/153303460500400304] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A 51 year old male with a history of right facial numbness developed progressive upper lip swelling for one year, but an MRI of the head was unremarkable. A wide local excision of the upper lip was performed and pathology revealed a 1.7 cm mass, poorly differentiated squamous cell carcinoma with perineural invasion. Surgical margins were free of tumor. Two months postoperatively, a hybrid PET-CT of the whole body was performed due to the persistent right facial numbness. The CT portion identified an equivocal lesion at the base of the right orbit correlating to the right infraorbital nerve. However, the PET-CT image revealed avid uptake in this location suggesting perineural invasion which was confirmed with biopsy of the right infraorbital nerve demonstrating carcinoma. Subsequently, the patient was treated with Intensity Modulation Radiation Therapy (IMRT) using MRI fusion for proper delineation of the right infraorbital nerve to its origin in the base of skull. This case exemplifies the superiority of hybrid PET-CT over CT or MRI alone in head and neck imaging which can lead to significant impact on management for patients with head and neck cancer.
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Affiliation(s)
- Ajay K Bhatnagar
- University of Pittsburgh Cancer Institute, Department of Radiation Oncology, 5230 Centre Avenue, Pittsburgh, PA 15232 USA.
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12
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Stecco A, Ciolfi S, Buemi F, Cassarà A, Sacchetti GM, Brambilla M, Carriero A. Combined multimodal co-registration of PET/CT and MRI images increases diagnostic accuracy in squamous cell carcinoma staging. Radiol Med 2016; 121:502-9. [DOI: 10.1007/s11547-015-0617-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 12/13/2015] [Indexed: 12/17/2022]
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13
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Cheung PKF, Chin RY, Eslick GD. Detecting Residual/Recurrent Head Neck Squamous Cell Carcinomas Using PET or PET/CT: Systematic Review and Meta-analysis. Otolaryngol Head Neck Surg 2015; 154:421-32. [PMID: 26715675 DOI: 10.1177/0194599815621742] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/19/2015] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To evaluate the diagnostic accuracy of positron emission tomography (PET) and PET/computed tomography (CT) for detecting residual and/or recurrent local and regional disease and distant metastases in patients with head and neck squamous cell carcinomas (HNSCCs) following radiotherapy with or without chemotherapy. DATA SOURCES A systematic review with no language restrictions was conducted using PREMEDLINE, MEDLINE, EMBASE, and Google Scholar. REVIEW METHODS Only prospective studies with histopathological and/or clinical follow-up that assessed the diagnostic accuracy of PET and PET/CT in detecting residual and/or recurrent disease following radiotherapy with or without chemotherapy in patients with HNSCCs were included. RESULTS Twenty-seven studies were identified. The pooled sensitivity and specificity of PET and PET/CT for detecting residual or recurrent disease at the primary site was 86.2% and 82.3%, respectively. For residual and recurrent neck disease, the sensitivity and specificity were 72.3% and 88.3%, while for distant metastases, the values were 84.6% and 94.9%. CONCLUSIONS PET and PET/CT are highly accurate in detecting residual and/or recurrent HNSCC. PET/CT is more specific than PET alone. Specificity is also greater for scans performed more than 12 weeks after radiotherapy with or without chemotherapy. The authors support the use of PET/CT after 12 weeks posttreatment for the assessment of residual or recurrent disease.
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Affiliation(s)
| | - Ronald Y Chin
- Department of Otolaryngology Head and Neck Surgery, The University of Sydney, Nepean Hospital, Penrith, New South Wales, Australia
| | - Guy D Eslick
- The Whiteley-Martin Research Centre, Discipline of Surgery, The University of Sydney, Nepean Hospital, Penrith, New South Wales, Australia
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14
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Chai YD, Zhang L, Yang Y, Su T, Charugundla P, Ai J, Messadi D, Wong DT, Hu S. Discovery of potential serum protein biomarkers for lymph node metastasis in oral cancer. Head Neck 2015; 38:118-25. [PMID: 25223295 DOI: 10.1002/hed.23870] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The purpose of our study was to identify serum protein biomarkers for node-positive oral squamous cell carcinoma (OSCC). Biomarkers indicating lymph node metastasis provides a valuable classification methodology to optimize treatment plans for patients with OSCC. METHODS Quantitative serum proteomic analysis of OSCCs with either node-positive or node-negative disease was performed with tandem mass spectrometry and isobaric tagging for relative and absolute quantitation (iTRAQ). Immunoassays were used to validate a panel of candidate protein biomarkers and receiver operating characteristic (ROC) analysis was used to evaluate the performance of the candidate biomarkers. RESULTS A total of 282 serum proteins were quantified between node-positive and node-negative OSCCs with the proteomic approach. Four candidate biomarkers, gelsolin, fibronectin, angiotensinogen, and haptoglobin, were validated in an independent group of patients with node-positive or node-negative OSCC. The best candidate biomarker, gelsolin, yielded a ROC value of 89% for node-positive OSCC, although the sample size for validation is relatively small. Fibronectin, gelsolin, and angiotensinogen were also found to be differentially expressed between cancer cell lines of node-positive and node-negative cancer origin. CONCLUSION Our studies suggest that testing of serum protein biomarkers might help detect lymph node metastasis of oral cancer. Because of limited sample size in our studies, long-term longitudinal studies with large populations of individuals with oral cancer are needed to validate these potential biomarkers.
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Affiliation(s)
- Yang D Chai
- School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Lifeng Zhang
- School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Yan Yang
- School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Trent Su
- School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Prashant Charugundla
- School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Jiye Ai
- School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Diana Messadi
- School of Dentistry, University of California-Los Angeles, Los Angeles, California.,Jonsson Comprehensive Cancer Center, School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - David T Wong
- School of Dentistry, University of California-Los Angeles, Los Angeles, California.,Jonsson Comprehensive Cancer Center, School of Dentistry, University of California-Los Angeles, Los Angeles, California
| | - Shen Hu
- School of Dentistry, University of California-Los Angeles, Los Angeles, California.,Jonsson Comprehensive Cancer Center, School of Dentistry, University of California-Los Angeles, Los Angeles, California
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Abstract
In this review, we review the literature on the use of PET in radiation treatment planning, with an emphasis on describing our institutional methodology (where applicable). This discussion is intended to provide other radiation oncologists with methodological details on the use of PET imaging for treatment planning in radiation oncology, or other oncologists with an introduction to the use of PET in planning radiation therapy.
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Pan D, Zhu SY, Xu YB, Wu YF, Lun HM, Wei YY. Sonographic findings of nasopharyngeal carcinoma and its involvement in the parapharyngeal space. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2013; 32:1041-1047. [PMID: 23716526 DOI: 10.7863/ultra.32.6.1041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES The purpose of this study was to determine the sonographic performance in pathologically proven cases of nasopharyngeal carcinoma and its involvement in the parapharyngeal space. METHODS The study included 58 patients being treated for suspected nasopharyngeal carcinoma detected by routine nasopharyngoscopy who underwent pathologic biopsy. Sonography was performed immediately thereafter with a convex array transducer in both the B-mode and color mode. Forty-five of the 58 patients (90 parapharyngeal spaces) in whom nasopharyngeal carcinoma was proved by both sonography and pathologic biopsy underwent preradiotherapy magnetic resonance imaging (MRI). The sonographic findings were compared to the pathologic findings. The sonographic findings of parapharyngeal space involvement were correlated with the MRI findings. RESULTS The normal anatomy of the nasopharynx and parapharyngeal space, nasopharyngeal carcinoma, and its relationship with the parapharyngeal space were well shown on sonography. The sensitivity of sonography for detection of nasopharyngeal carcinoma was 97.8%, and the specificity was 41.7%. The sonographic findings of parapharyngeal space involvement had a high degree of agreement with MRI (κ = 0.757; P < .001). CONCLUSIONS These promising initial data indicate that sonography may be a useful tool for diagnosing nasopharyngeal carcinoma and defining the relationship between the tumor and the parapharyngeal space.
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Affiliation(s)
- Dai Pan
- Department of Diagnostic Ultrasound, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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17
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Watanabe H, Kanematsu M, Kato H, Kojima T, Miyoshi T, Goshima S, Kondo H, Kawada H, Noda Y, Moriyama N. Enhancement of anatomical structures and detection of metastatic cervical lymph nodes: comparison of two different contrast material doses. Jpn J Radiol 2012; 30:846-51. [PMID: 23001419 DOI: 10.1007/s11604-012-0135-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 09/09/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE To determine if a 20 % reduction in the contrast material dose is acceptable in the CT evaluation of patients with head and neck malignancy. MATERIALS AND METHODS Sixty consecutive patients (mean age 67 years) with head and neck malignancy underwent contrast-enhanced CT according to two different protocols: protocol A (80 mL of contrast material administered at an injection rate of 1.5 mL/s) and protocol B (100 mL at 1.9 mL/s). The enhancement of anatomical structures and detectability of metastatic nodes were compared between the two protocols. Pathologic analysis of the surgical resection served as the reference standard. RESULTS CT numbers of the anatomical structures were not significantly different between the two protocols. Mean sensitivity (64 and 77 % for protocols A and B, respectively), specificity (78 and 84 %), and accuracy (74 and 83 %) tended to be higher for protocol B than for A, but no significant difference was found. CONCLUSION Reducing the contrast material dose by 20 % did not significantly impair the enhancement of anatomical structures or the detection of metastatic cervical lymph nodes. Radiologists should therefore consider reducing the contrast material dose used in head and neck CT.
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Affiliation(s)
- Haruo Watanabe
- Department of Radiology, Gifu Central Hospital, 3-25 Kawabe, Gifu 501-1198, Japan.
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18
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Nakamatsu S, Matsusue E, Miyoshi H, Kakite S, Kaminou T, Ogawa T. Correlation of apparent diffusion coefficients measured by diffusion-weighted MR imaging and standardized uptake values from FDG PET/CT in metastatic neck lymph nodes of head and neck squamous cell carcinomas. Clin Imaging 2012; 36:90-7. [PMID: 22370129 DOI: 10.1016/j.clinimag.2011.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Accepted: 05/20/2011] [Indexed: 12/28/2022]
Abstract
Both diffusion-weighted magnetic resonance imaging and fluorodeoxyglucose positron emission tomography/computed tomography are oncological imaging techniques. The aim of this study was to assess any correlation between apparent diffusion coefficients and standardized uptake value in metastatic neck lymph nodes of head and neck squamous cell carcinomas.
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Affiliation(s)
- Satoru Nakamatsu
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Japan.
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Cashman EC, MacMahon PJ, Shelly MJ, Kavanagh EC. Role of Positron Emission Tomography-Computed Tomography in Head and Neck Cancer. Ann Otol Rhinol Laryngol 2011; 120:593-602. [DOI: 10.1177/000348941112000907] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Head and neck squamous cell carcinoma (HNC) is the sixth most common cancer worldwide. In the United States, it accounts for approximately 2% of all cancers and 2% of cancer deaths. The introduction of integrated positron emission tomography and computed tomography (PET/CT) has revolutionized imaging by permitting improved and more accurate anatomic localization of functional abnormalities in the complex territory of the head and neck region, and PET/CT has become a standard clinical imaging modality in patients with HNC. The main indications for PET/CT in HNC are in pretherapy staging, detection of unknown primaries, and monitoring of therapy response or disease surveillance. Although PET/CT is a promising tool in diagnosis and surveillance of HNC, there is lack of consensus as to its use, accuracy, and implications for patient management. The existing literature on the role of PET/CT in the management of HNC is reviewed, and a summary of the current debate is provided. Second primary cancers are the main cause of death among HNC patients with early disease, and the presence of distant metastases greatly impairs the survival of patients with advanced HNC. Therefore, early detection of second primary and metastatic tumors is imperative for optimizing survival outcome. However, given the lack of randomized, prospective trials addressing the role of PET/CT after chemoradiotherapy, the ideal function of PET/CT in disease surveillance has yet to be defined.
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Affiliation(s)
| | - Peter J. MacMahon
- Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Martin J. Shelly
- Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Eoin C. Kavanagh
- Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland
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20
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Gupta T, Master Z, Kannan S, Agarwal JP, Ghsoh-Laskar S, Rangarajan V, Murthy V, Budrukkar A. Diagnostic performance of post-treatment FDG PET or FDG PET/CT imaging in head and neck cancer: a systematic review and meta-analysis. Eur J Nucl Med Mol Imaging 2011; 38:2083-95. [PMID: 21853309 DOI: 10.1007/s00259-011-1893-y] [Citation(s) in RCA: 230] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Accepted: 07/21/2011] [Indexed: 01/13/2023]
Abstract
PURPOSE Our objective was to conduct a systematic review and meta-analysis of studies assessing the diagnostic performance of (18)F-fluorodeoxyglucose positron emission tomography (FDG PET) with or without computed tomography (CT) in post-treatment response assessment and/or surveillance imaging of head and neck squamous cell carcinoma (HNSCC). METHODS A systematic search of the indexed medical literature was done using appropriate keywords to identify relevant studies. Metrics of diagnostic test accuracy, viz. sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were extracted from individual studies and combined using a random effects model to yield weighted mean pooled estimates with 95% confidence intervals (95% CI). The impact of timing of post-treatment scan, study quality and advancements in PET technology was explored through meta-regression. RESULTS A total of 51 studies involving 2,335 patients were included in the meta-analysis. The weighted mean (95% CI) pooled sensitivity, specificity, PPV and NPV of post-treatment FDG PET(CT) for the primary site was 79.9% (73.7-85.2%), 87.5% (85.2-89.5%), 58.6% (52.6-64.5%) and 95.1% (93.5-96.5%), respectively. Similar estimates for the neck were 72.7% (66.6-78.2%), 87.6% (85.7-89.3%), 52.1% (46.6-57.6%) and 94.5% (93.1-95.7%), respectively. Scans done ≥ 12 weeks after completion of definitive therapy had moderately higher diagnostic accuracy on meta-regression analysis using time as a covariate. CONCLUSION The overall diagnostic performance of post-treatment FDG PET(CT) for response assessment and surveillance imaging of HNSCC is good, but its PPV is somewhat suboptimal. Its NPV remains exceptionally high and a negative post-treatment scan is highly suggestive of absence of viable disease that can guide therapeutic decision-making. Timing of post-treatment imaging has a significant, though moderate impact on diagnostic accuracy.
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Affiliation(s)
- Tejpal Gupta
- Department of Radiation Oncology, Tata Memorial Centre, Kharghar, Navi Mumbai, India.
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21
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Krabbe CA, Pruim J, Scholtens AM, Roodenburg JLN, Brouwers AH, Phan TTH, Agool A, Dijkstra PU. 18F-FDG PET in squamous cell carcinoma of the oral cavity and oropharynx: a study on inter- and intraobserver agreement. J Oral Maxillofac Surg 2010; 68:21-7. [PMID: 20006150 DOI: 10.1016/j.joms.2009.07.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Revised: 04/14/2009] [Accepted: 07/25/2009] [Indexed: 11/15/2022]
Abstract
PURPOSE Good observer agreement is mandatory for an effective imaging technique. However, little is known about the observer agreement of fluorine-18 fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET) in head and neck squamous cell carcinoma. The aim of the present study was to evaluate the inter- and intraobserver agreement of interpretations of (18)F-FDG PET in head and neck SCC and to assess the influence of observer experience, tumor localizing, and tumor size on the agreement. PATIENTS AND METHODS (18)F-FDG PET scans of 80 patients with oral and oropharyngeal SCC were reassessed twice by 2 experienced nuclear medicine physicians and 2 residents in nuclear medicine. The absolute agreement and Cohen's kappa were calculated by comparing the results of the 4 observers for the primary tumor, cervical metastases, and distant metastases/second primary tumor. To analyze the sensitivity and specificity, the results were compared with the findings from the histologic specimens or the follow-up data. RESULTS The interobserver agreement of the nuclear medicine physicians revealed an absolute agreement and kappa of 0.91 and 0.58 for detecting the primary tumor, 0.94 and 0.83 for detecting cervical metastases, and 0.85 and 0.53 for detecting distant metastases/second primary tumors, respectively. The intraobserver agreement was greater overall than the interobserver agreement. Compared with the nuclear medicine physicians, the residents scored lower in interobserver agreement. The interobserver agreement decreased when localizing the malignancy more precisely. The agreement and sensitivity increased with tumor size. However, for small metastases, a high observer agreement was found owing to the nondetection of these malignancies. CONCLUSIONS Good inter- and intraobserver agreement in SCC in the oral cavity or oropharynx with (18)F-FDG PET was found. Observer experience had limited influence on observer agreement. However, the agreement level decreased when a more precise anatomic tumor localization was required.
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Affiliation(s)
- Christiaan A Krabbe
- Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands.
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22
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Krabbe CA, Pruim J, Dijkstra PU, Balink H, van der Laan BF, de Visscher JG, Roodenburg JL. 18F-FDG PET as a Routine Posttreatment Surveillance Tool in Oral and Oropharyngeal Squamous Cell Carcinoma: A ProspectiveStudy. J Nucl Med 2009; 50:1940-7. [DOI: 10.2967/jnumed.109.065300] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Kwee TC, Basu S, Cheng G, Alavi A. FDG PET/CT in carcinoma of unknown primary. Eur J Nucl Med Mol Imaging 2009; 37:635-44. [PMID: 19882152 PMCID: PMC2822231 DOI: 10.1007/s00259-009-1295-6] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Accepted: 09/23/2009] [Indexed: 01/26/2023]
Abstract
Carcinoma of unknown primary (CUP) is a heterogeneous group of metastatic malignancies in which a primary tumor could not be detected despite thorough diagnostic evaluation. Because of its high sensitivity for the detection of lesions, combined 18F-fluoro-2-deoxyglucose positron emission tomography (FDG PET)/computed tomography (CT) may be an excellent alternative to CT alone and conventional magnetic resonance imaging in detecting the unknown primary tumor. This article will review the use, diagnostic performance, and utility of FDG PET/CT in CUP and will discuss challenges and future considerations in the diagnostic management of CUP.
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Affiliation(s)
- Thomas C Kwee
- Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
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Garin E, Lesimple T. Intérêt de la tomographie d’émission de positons au 18F-fluorodésoxyglucose (TEP-FDG) dans la prise en charge des syndromes CAPI. ONCOLOGIE 2008. [DOI: 10.1007/s10269-008-0988-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee J, Fernandes R. Neck masses: evaluation and diagnostic approach. Oral Maxillofac Surg Clin North Am 2008; 20:321-37. [PMID: 18603194 DOI: 10.1016/j.coms.2008.04.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Oral and maxillofacial surgeons frequently deal with patients who present with an unknown neck mass. Formulation of a differential diagnosis is essential and requires that the surgeon bring to bear a host of skills to systematically arrive at a definitive diagnosis and ensure that the correct treatment is rendered. This article highlights some of the skills needed in the workup of neck masses and reviews some of the available techniques that aid in achieving the correct diagnosis.
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Affiliation(s)
- Jason Lee
- Division of Oral & Maxillofacial Surgery, Department of Surgery, University of Florida College of Medicine, Jacksonville, FL 32246, USA
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26
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Abstract
Squamous cell carcinoma is the most frequent malignancy of the head and neck region, accounting for 5% of all malignant tumors worldwide. Accurate staging at diagnosis is critical for selection of appropriate treatment strategy. A variety of therapeutic options are used for treatment, including surgery with or without radical dissection, lymph node dissections of various severities, radiotherapy, chemotherapy, and combinations of these. Precise prediction of the extent of primary tumors, detection of unknown primary tumor, cervical lymph node status, and distant metastatic spread is important for treatment planning and prognosis. Accurate evaluation of these factors prior to treatment helps guide surgical extent or radiation porta, minimizing locoregional treatment failure.
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CT, MR, US, 18F-FDG PET/CT, and their combined use for the assessment of cervical lymph node metastases in squamous cell carcinoma of the head and neck. Eur Radiol 2008; 19:634-42. [DOI: 10.1007/s00330-008-1192-6] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Revised: 08/16/2008] [Accepted: 09/05/2008] [Indexed: 10/21/2022]
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Role of fluorodeoxyglucose-PET versus fluorodeoxyglucose-PET/computed tomography in detection of unknown primary tumor: a meta-analysis of the literature. Nucl Med Commun 2008; 29:666-73. [PMID: 18677207 DOI: 10.1097/mnm.0b013e328302cd26] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The objectives of this study were to evaluate the diagnostic accuracy of fluorodeoxyglucose (FDG)-PET and FDG-PET/computed tomography (CT) in the detection of primary tumors in patients presenting with carcinoma of unknown primary (CUP) unidentified by conventional workup, and to compare the statistical difference between the FDG-PET and FDG-PET/CT. Twenty-eight studies (involving a total of 910 patients) published between 1990 and 2007 were reviewed. These studies evaluated the role of FDG-PET and FDG-PET/CT in the detection of unknown primary tumors after physical examination and conventional workup failed to detect a primary tumor. Systematic methods were used to identify, select, and evaluate the methodological quality of the studies as well as to summarize the overall findings of sensitivity, specificity, and detection capacity of the primary tumor. The overall sensitivity and specificity of FDG-PET in detecting unknown primary tumors were 0.78 [95% confidence interval (CI): 0.72-0.84)] and 0.79 (95% CI: 0.74-0.83), respectively. Furthermore, FDG-PET detected 28.54% of tumors that were not apparent after CUP failed to be detected by conventional workup. Data were collected on the locations of primary tumors detected by FDG-PET in 17 studies and detected by FDG-PET/CT in seven studies. Tumors from the base of the tongue accounted for 20.7% (six of 29) of all false-positive FDG-PET scans, corresponding to a false-positive rate of 28.6% (six of 29), much higher than tumors from the others. FDG-PET exhibited a lower sensitivity with respect to the tumors at the base of the tongue and tonsils, which was 68.2 and 76.7%, respectively. In the eight studies with 430 patients diagnosed with CUP by FDG-PET/CT, 31.4% (n=135) of primary tumors were detected. The pooled sensitivity and specificity were 0.81 (95% CI: 0.74-0.87) and 0.83 (95% CI: 0.78-0.87), respectively. FDG-PET and FDG-PET/CT can detect primary tumors that went undetected by physical examination and conventional workup. FDG-PET exhibited lower sensitivity with respect to the tumors at the base of the tongue and the tonsils.
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Mabille L. [Role of PET-CT in the follow-up of treated tumors of the head and neck]. ACTA ACUST UNITED AC 2008; 89:1037-40. [PMID: 18772780 DOI: 10.1016/s0221-0363(08)73906-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
F-18 FDG PET-CT is a well established medical imaging technique used routinely for the follow-up of treated head and neck tumors. Currently, PET-CT is performed 4 months after the end of therapy to assess its efficacy. More recently it has been suggested that this delay could be reduced to one month with major therapeutic implications. During follow-up, PET-CT could improve sensitivity and specificity compared to other imaging techniques. Moreover, since PET-CT is a "whole body technique", it allows restaging in a single procedure.
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Affiliation(s)
- L Mabille
- TEP Paris Nord, 10 avenue Charles Péguy, 95200 Sarcelles.
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(18)F-FDG accumulation in the oral cavity is associated with periodontal disease and apical periodontitis: an initial demonstration on PET/CT. Ann Nucl Med 2008; 22:587-93. [PMID: 18756361 DOI: 10.1007/s12149-008-0153-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2008] [Accepted: 03/18/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The objective of this study was to prospectively investigate the relationship between high accumulation of 2-deoxy-2-[(18)F] fluoro-D: -glucose (FDG) in the oral cavity and dental infections on positron emission tomography/computed tomography (PET/CT). METHODS FDG-PET/CT scans of 103 patients who underwent a health screening were evaluated. The dental examination was performed prior to each PET/CT scan, and dental infections were assessed. Dental infections were classified into six blocks. The severity of dental caries was classified into five grades, and periodontal disease and apical periodontitis were classified into three grades. Two radiologists classified the PET images in the same manner as the dental examination. They evaluated the intensity of FDG uptake by a four-point visual PET image score for each block. The comparison of the dental examination, as a gold standard, and the visual PET image score was performed on a patient or block basis. RESULTS On a patient-based analysis, 21 of 103 patients (20.4%) showed PET positive findings in the oral cavity; 18 of the 21 patients (85.7%) had dental infections. On a block-based analysis, 25 of 605 blocks (4.1%) showed PET positive findings in the oral cavity; 22 of the 25 blocks (88.0%) had dental infections. On a detailed block-based analysis, a significant difference was observed between the presence of periodontal disease, or apical periodontitis and the positivity of the visual PET image findings (P < 0.01). Their severity correlated with the visual PET image score (P < 0.05). CONCLUSIONS Periodontal disease or apical periodontitis, but not dental caries, caused FDG accumulation in the oral cavity. This finding should be taken into account when a head and neck FDG-PET study is interpreted.
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Staging of untreated nasopharyngeal carcinoma with PET/CT: comparison with conventional imaging work-up. Eur J Nucl Med Mol Imaging 2008; 36:12-22. [PMID: 18704401 DOI: 10.1007/s00259-008-0918-7] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Accepted: 08/01/2008] [Indexed: 12/28/2022]
Abstract
PURPOSE We prospectively compared PET/CT and conventional imaging for initial staging of nasopharyngeal carcinoma (NPC). METHODS A total of 111 patients with histologically proven NPC were investigated with PET/CT and conventional imaging (head-and-neck MRI, chest X-ray, abdominal ultrasound, and bone scan) before treatment. The respective findings were reviewed independently and then compared with each other. RESULTS With regard to T staging, PET/CT showed a discrepancy with head-and-neck MRI in 36 (32.4%) of the study subjects. With regard to N staging, PET/CT showed a discrepancy with head-and-neck MRI in 15 (13.5%) patients. Among the discordant cases, MRI was superior in demonstrating tumor involvement in the parapharyngeal space, skull base, intracranial area, sphenoid sinus, and retropharyngeal nodes while PET/CT was superior in demonstrating neck nodal metastasis. PET/CT disclosed 13 of 16 patients with distant malignancy compared with four patients disclosed by conventional imaging work-up. The false-positive rate of PET/CT was 18.8%. PET/CT correctly modified M staging in eight patients (7.2%) and disclosed a second primary lung malignancy in one patient (0.9%). CONCLUSION In NPC patients, MRI appears to be superior to PET/CT for the assessment of locoregional invasion and retropharyngeal nodal metastasis. PET/CT is more accurate than MRI for determining cervical nodal metastasis and should be the better reference for the neck status. PET/CT has an acceptable diagnostic yield and a low false-positive rate for the detection of distant malignancy and can replace conventional work-up to this aim. PET/CT and head-and-neck MRI are suggested for the initial staging of NPC patients.
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Isles M, McConkey C, Mehanna H. A systematic review and meta-analysis of the role of positron emission tomography in the follow up of head and neck squamous cell carcinoma following radiotherapy or chemoradiotherapy. Clin Otolaryngol 2008; 33:210-22. [DOI: 10.1111/j.1749-4486.2008.01688.x] [Citation(s) in RCA: 236] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kyzas PA, Evangelou E, Denaxa-Kyza D, Ioannidis JPA. 18F-fluorodeoxyglucose positron emission tomography to evaluate cervical node metastases in patients with head and neck squamous cell carcinoma: a meta-analysis. J Natl Cancer Inst 2008; 100:712-20. [PMID: 18477804 DOI: 10.1093/jnci/djn125] [Citation(s) in RCA: 233] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Positron emission tomography using 18F-fluorodeoxyglucose (18F-FDG PET) has been proposed to enhance preoperative assessment of cervical lymph node status in patients with head and neck squamous cell carcinoma (HNSCC). Management is most controversial for patients with a clinically negative (cN0) neck. We aimed to assess the diagnostic accuracy of 18F-FDG PET in detecting lymph node metastases in patients with HNSCC. METHODS We performed a meta-analysis of all available studies of the diagnostic performance of 18F-FDG PET in patients with HNSCC. We determined sensitivities and specificities across studies, calculated positive and negative likelihood ratios (LR+ and LR-), and constructed summary receiver operating characteristic curves using hierarchical regression models. We also compared the performance of 18F-FDG PET with that of conventional diagnostic methods (ie, computed tomography, magnetic resonance imaging, and ultrasound with fine-needle aspiration) by analyzing studies that had also used these diagnostic methods on the same patients. RESULTS Across 32 studies (1236 patients), 18F-FDG PET sensitivity was 79% (95% confidence interval [CI] = 72% to 85%) and specificity was 86% (95% CI = 83% to 89%). For cN0 patients, sensitivity of 18F-FDG PET was only 50% (95% CI = 37% to 63%), whereas specificity was 87% (95% CI = 76% to 93%). Overall, LR+ was 5.84 (95% CI = 4.59 to 7.42) and LR- was 0.24 (95% CI = 0.17 to 0.33). In studies in which both 18F-FDG PET and conventional diagnostic tests were performed, sensitivity and specificity of 18F-FDG PET were 80% and 86%, respectively, and of conventional diagnostic tests were 75% and 79%, respectively. CONCLUSION 18F-FDG PET has good diagnostic performance in the overall pretreatment evaluation of patients with HNSCC but still does not detect disease in half of the patients with metastasis and cN0.
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Affiliation(s)
- Panayiotis A Kyzas
- Clinical and Molecular Epidemiology Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina 45110, Greece
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Revisión sistemática y metaanálisis de la eficacia diagnóstica de la PET 18F-FDG en recurrencia tumoral de cánceres de cabeza y cuello. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2008. [DOI: 10.1016/s0001-6519(08)73292-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Systematic Review and Meta-Analysis of Diagnostic Accuracy of 18F-FDG PET in Suspected Recurrent Head and Neck Cancer. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s2173-5735(08)70220-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Malik V, Keogan M, Gilham C, Duffy G, Ravi N, Reynolds JV. FDG-PET scanning in the management of cancer of the oesophagus and oesophagogastric junction: early experience with 100 consecutive cases. Ir J Med Sci 2007; 175:48-54. [PMID: 17312829 DOI: 10.1007/bf03167967] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND The aim was to evaluate the impact of FDG-PET scan on tumour staging and management decisions in oesophageal cancer. METHODS One-hundred consecutive patients referred for consideration of surgery underwent a whole body FDG-PET scan in addition to CT imaging. RESULTS Based on CT scan, a curative approach could be considered in 62 patients. The PET scan altered regional nodal (N) staging in 16 patients overall, but did not alter management decisions. Metastatic status (M) was increased in 14 patients, with altered management in 10/62 (16%). Nine were downstaged, with management changed in 3/38 (8%). Seventeen patients underwent 19 additional tests to clarify findings on PET, in 15 patients (88%) the tests revealed no pathology. CONCLUSION FDG-PET alters M stage in 23% of patients and may impact on surgical decision-making. The spurious investigations and cost of the high false-positive rate of further tests is of concern.
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Affiliation(s)
- V Malik
- Dept of Clinical Surgery, St James's Hospital and Trinity College Dublin
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Horiuchi C, Taguchi T, Yoshida T, Nishimura G, Kawakami M, Tanigaki Y, Matsuda H, Mikami Y, Oka T, Inoue T, Tsukuda M. Early assessment of clinical response to concurrent chemoradiotherapy in head and neck carcinoma using fluoro-2-deoxy-d-glucose positron emission tomography. Auris Nasus Larynx 2007; 35:103-8. [PMID: 17825512 DOI: 10.1016/j.anl.2007.05.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2006] [Revised: 01/04/2007] [Accepted: 05/22/2007] [Indexed: 10/22/2022]
Abstract
OBJECTIVES The aim of this study is to assess the utility of FDG-PET in the evaluation of therapeutic effects at 4 weeks after the completion of the concurrent chemoradiotherapy (CCR) in patients with head and neck squamous cell carcinoma (HNSCC). METHODS Thirty-one patients with previously untreated HNSCC were retrospectively investigated about FDG-PET, CT, MRI and biopsies of the carcinoma before and 4 weeks after the treatment. RESULTS The results of pathological examinations after CCR showed 6 residual cases and 25 ones with a pathologically complete response (pCR). The specificity of FDG-PET was 80%, although the sensitivity was limited to 67%. CONCLUSIONS FDG-PET has a high specificity but limited sensitivity to discriminate residual cancer from fibrosis or scar at 4 weeks after CCR. FDG-PET at 4 weeks after CCR was too early to perform because of limited sensitivity.
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Affiliation(s)
- Choichi Horiuchi
- Department of Otorhinolaryngology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan.
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Garin E, Prigent-Lejeune F, Lesimple T, Barge ML, Rousseau C, Devillers A, Bouriel C, Habiba MT, Bernard AM, Bridji B, Resche I. Impact of PET-FDG in the diagnosis and therapeutic care of patients presenting with metastases of unknown primary. Cancer Invest 2007; 25:232-9. [PMID: 17612933 DOI: 10.1080/07357900701206331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We carried out a study to evaluate the contribution of positron emission tomography with (18)F-fluorodeoxyglucose (PET-FDG) in the diagnosis and therapeutic care of patients presenting with metastases of unknown primary. PET-FDG was prospectively performed in 51 patients. The PET-FDG data were confirmed histologically or by a follow-up on average at 13 months. PET-FDG identified the primary in 24 percent of cases, and detected the presence of additional metastases in 41 percent of cases. PET-FDG led to a therapeutic modification for 12 patients (24 percent). Furthermore, the therapeutic impact seems more marked in localized forms than in the multifocal. This broad exploratory study confirms the important role of PET-FDG in the diagnosis and therapeutic management of patients with metastases of unknown primary.
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Affiliation(s)
- Etienne Garin
- UPRES EA 3890/Department of Medical Imagery, Centre Eugène Marquis, Rennes, France.
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Fencl P, Belohlavek O, Skopalova M, Jaruskova M, Kantorova I, Simonova K. Prognostic and diagnostic accuracy of [18F]FDG-PET/CT in 190 patients with carcinoma of unknown primary. Eur J Nucl Med Mol Imaging 2007; 34:1783-92. [PMID: 17541584 DOI: 10.1007/s00259-007-0456-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Accepted: 03/13/2007] [Indexed: 11/30/2022]
Abstract
PURPOSE The aim of the study was to determine the accuracy of [(18)F]fluorodeoxyglucose (FDG) PET/CT in the search for the primary and the presence of a malignancy. The prognostic value of FDG-PET/CT information was tested. METHODS A total of 190 patients were retrospectively analysed: 82 with histologically proven metastases (HPM) and 108 with clinical suspicion of the presence of a malignancy (CSM). The sensitivity and specificity were determined. Overall survival was calculated to evaluate the prognostic value of the FDG-PET/CT findings. RESULTS In the search for the primary, the sensitivity and specificity were 62.0% and 81.9%, respectively. In the search for the presence of a malignancy, the sensitivity and specificity were 93.6% and 85.7%, respectively. Between the HPM and CSM groups, no significant difference in sensitivity and specificity was found either in the search for the primary or in the search for the presence of a malignancy. No significant difference in the sensitivity and specificity was found between 78 patients who were investigated by contrast-enhanced FDG-PET/CT and the remaining patients. A significantly shorter overall survival was found among patients with positive FDG-PET/CT findings compared with patients with negative findings (p = 0.00001); no significant difference in survival was found between the HPM and the CSM group (p = 0.770). CONCLUSION FDG-PET/CT imaging is very helpful in the search for the presence of a malignancy in patients with carcinoma of unknown primary syndrome. FDG-PET/CT is less accurate in identifying exactly the site of a primary. Discovery of a hypermetabolic lesion was associated with the worst survival rate.
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Affiliation(s)
- Pavel Fencl
- PET Center, Na Homolce Hospital, Roentgenova 2, 150 30 Prague 5, Czech Republic.
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Nabili V, Zaia B, Blackwell KE, Head CS, Grabski K, Sercarz JA. Positron emission tomography: poor sensitivity for occult tonsillar cancer. Am J Otolaryngol 2007; 28:153-7. [PMID: 17499129 DOI: 10.1016/j.amjoto.2006.08.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Indexed: 11/26/2022]
Abstract
PURPOSE The aim of the study was to determine the sensitivity of preoperative positron emission tomography (PET) scans in the detection of primary tumors of the tonsils. MATERIALS AND METHODS We conducted a retrospective review of 46 patients treated at a university medical center for occult tonsillar cancer during the years 2002 to 2004. We identified patients who underwent a preoperative PET scan to locate an unknown primary tumor. Fusion computed tomography with PET (PET/CT) was used to further delineate anatomic localization to the tonsil area. A positive PET/CT scan was defined as asymmetric increased tracer uptake in the tonsil and/or tonsillar fossa ipsilateral to the tonsillar cancer site when compared with the contralateral site. A negative PET/CT scan was defined as equivocal symmetric tracer uptake bilaterally. RESULTS Of the 46 patients, 6 (13.0%) had pretreatment PET scans. Of these 6 patients, 16.7% (n = 1) had positive PET, 66.7% (n = 4) had negative PET, and 16.7% (n = 1) demonstrated increased tracer uptake in tonsils bilaterally greater on the side contralateral to the cancer. In this group, PET scans had a sensitivity of 0.167 and false-negative ratio of 0.667 for tonsillar cancer detection. CONCLUSIONS Although the patient population in this study is small (n = 6), the findings suggest that PET/ CT scans may offer a low sensitivity in detection of primary tonsillar cancers. However, PET/CT scans still have a significant role in the detection of other unknown primary head and neck tumors. Technical reasons for this finding are discussed.
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Álvarez Pérez R, Borrego Dorado I, Ruiz Franco-Baux J, Vázquez Albertino R. Evaluación de la eficacia y el impacto clínico de la tomografía de emisión de positrones con 18F-FDG en pacientes con sospecha de recurrencias locales y metástasis de carcinomas de cabeza y cuello. ACTA ACUST UNITED AC 2007. [DOI: 10.1157/13097379] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pasamontes Pingarrón JA, Cabrera Martín MN, Carreras Delgado JL, Scola Yurrita B, Calvo Manuel F, Pérez Castejón MJ. Impacto de la PET-FDG sobre el manejo terapéutico de pacientes con sospecha de recurrencia tumoral por cánceres de cabeza y cuello. ACTA ACUST UNITED AC 2006; 25:294-300. [PMID: 17173775 DOI: 10.1157/13092696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This study aims to evaluate the impact of Positron Emission Tomography on therapeutic decisions in patients with suspicion of recurrence of head and neck cancers. MATERIAL AND METHODS The diagnostic and therapeutic impact of FDG-PET was evaluated in 59 of 60 studies performed in a sample of 54 patients. The impact was graded on five levels (high, moderate, low, no impact and negative impact) following the Hicks et al. classification modified by us. RESULTS The FDG-PET impact was high in 28 studies (47.46 %), moderate in 7 (11.86 %), low in 20 (33.90 %), no impact in 3 (5.09 %) and finally negative impact in 1 study (1.69 %). CONCLUSIONS FDG-PET is useful in the management of patients in 59.32 % of the studies with indeterminate physical examination and conventional imaging tests. This paper supplies new data since we did not find any studies showing statistical results on therapeutic impact of FDG-PET in head and neck cancers in a systematic review of the literature made by our group.
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Abstract
The length and quality of head and neck cancer survivorship continues to improve. Radiotherapy has been central to this process through advances in treatment technology, fractionation schemas, radiosensitizing chemotherapy, and surgical technique. The future of head and neck radiotherapy looks brighter still with progress in radiosensitizing biologic therapy, molecular characterization, functional imaging, and rehabilitative strategies fast approaching. Head and neck cancer, a disease once fraught with nihilism and failure, is evolving into a major success story of multidisciplinary solid tumor management. Continued dedication and work on the part of provider and patient alike will be required to make this promise a reality.
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Affiliation(s)
- D L Schwartz
- Department of Radiation Oncology, M.D. Anderson Cancer Center, Unit 97, 1515 Holcombe Boulevard, Houston, TX 77030, USA.
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Chen AY, Vilaseca I, Hudgins PA, Schuster D, Halkar R. PET-CT vs contrast-enhanced CT: What is the role for each after chemoradiation for advanced oropharyngeal cancer? Head Neck 2006; 28:487-95. [PMID: 16619274 DOI: 10.1002/hed.20362] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
PURPOSE The aim of our study was to assess the utility of positron emission tomography (PET) and 2 fluoro-2-deoxy-D-glucose coupled with neck CT compared with contrast-enhanced CT in predicting persistent cancer either at the primary site or cervical lymphatics in patients with oropharyngeal cancer treated with concurrent chemoradiation METHODS Thirty consecutive patients underwent clinical examination, PET-CT, and contrast-enhanced CT to assess response after the completion of the treatment. The outcome variable was positive tissue diagnosis or negative disease at 6 months. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy were calculated for the primary site as well as cervical disease. RESULTS Contrast-enhanced CT alone showed the best accuracy in detecting disease at the primary site after treatment (85.7%). Accuracy in evaluating residual tumor in the cervical lymphatics for contrast-enhanced CT and PET-CT was 59.3% and 74.1%, respectively. For evaluating the neck, PET-CT and contrast-enhanced CT demonstrated 100% NPV, but the PPV was 36.3% and 26.6%, respectively. CONCLUSIONS In this preliminary study, PET-CT seems to be superior to contrast-enhanced CT in predicting persistent disease in the neck after chemoradiation for oropharyngeal or unknown primary cancer, but not at the primary site. However, the possibility of a false-positive result in the neck remains high, and thus overtreatment may result. Even more concerning are the false-negative results. Larger, prospective studies will be important in defining the role of PET-CT in obviating the need for salvage neck dissections after chemoradiation.
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Affiliation(s)
- Amy Y Chen
- Department of Otolaryngology, Emory University School of Medicine, Emory Otolaryngology, 1365A Clifton Rd NE, Ste 2315A, Atlanta, GA 30322, USA.
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Kolesnikov-Gauthier H, Levy E, Merlet P, Kirova J, Syrota A, Carpentier P, Meignan M, Piedbois P. FDG PET in patients with cancer of an unknown primary. Nucl Med Commun 2005; 26:1059-66. [PMID: 16264351 DOI: 10.1097/00006231-200512000-00003] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND This prospective study was undertaken to address the capacity of positron emission tomography (PET) with 2-[18F]fluoro-2-deoxy-D-glucose (18F-FDG) to determine the primary tumour site of carcinomas with unknown primary site. PATIENTS AND METHODS Twenty-five patients with metastases from adenocarcinoma or undifferentiated carcinoma of unknown primary site (CUP) were included prospectively. For all patients, extensive imaging was unsuccessful in localizing the primary site. Patients received 370 MBq of 18F-FDG intravenously, and whole-body images were acquired 60 min after injection. All hot spots that could not be attributed to a metastatic site were considered as the primary tumour. The evaluation of FDG PET data was based on clinical and radiological outcome or surgery if indicated. RESULTS Twenty-four patients were eligible for analysis. All known metastases were visualized. In six patients, FDG PET showed a primary tumour site which was confirmed by follow-up or surgery. In five patients, the primary tumour site was suggested by FDG PET but not confirmed by clinical outcome. No primary tumour was found in the other patients, with a mean follow-up of 15 months. CONCLUSION In our series, FDG PET allowed the identification of primary tumour site in one quarter of patients with CUP (6/24). We conclude that FDG PET has a place in the initial staging of these patients.
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Affiliation(s)
- Hélène Kolesnikov-Gauthier
- European Association for Research in Oncology, Department of Medical Oncology, Henri Mondor Hospital, Assistance Publique - Hopitaux de Paris, Lille, France.
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Schwartz DL, Ford EC, Rajendran J, Yueh B, Coltrera MD, Virgin J, Anzai Y, Haynor D, Lewellen B, Mattes D, Kinahan P, Meyer J, Phillips M, Leblanc M, Krohn K, Eary J, Laramore GE. FDG-PET/CT-guided intensity modulated head and neck radiotherapy: a pilot investigation. Head Neck 2005; 27:478-87. [PMID: 15772953 DOI: 10.1002/hed.20177] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND 2-deoxy-2[(18)F]fluoro-D-glucose-positron emission tomography (FDG-PET) imaging can be registered with CT images and can potentially improve neck staging sensitivity and specificity in patients with head and neck squamous cell cancer. The intent of this study was to examine the use of registered FDG-PET/CT imaging to guide head and neck intensity modulated radiotherapy (IMRT) planning. METHODS Twenty patients with squamous cell carcinoma of the oral cavity, oropharynx, larynx, or hypopharynx underwent FDG-PET and contrast-enhanced CT imaging of the head and neck before neck dissection surgery. Combined FDG-PET/CT images were created by use of a nonrigid image registration algorithm. All IMRT plans were theoretical and were not used for treatment. We prescribed 66 Gy in 30 fractions to FDG-avid CT abnormalities and nodal zones directly involved with disease, without prophylactic coverage of uninvolved neck levels. Matched CT-guided IMRT plans designed according to the specifications of Radiation Therapy Oncology Group (RTOG) H-0022 were available for comparison. We investigated the feasibility of FDG-PET/CT-directed IMRT dose escalation in five patients with FDG-avid disease located away from critical normal structures. After 66 Gy, FDG-avid disease with 0.5-cm margins was boosted in 220 cGy increments until dose-limiting criteria were reached. RESULTS Elimination of prophylactic coverage to FDG-PET/CT-negative neck levels markedly reduced mean dose (Dmean) to the contralateral parotid gland (p < .001) and Dmean to the laryngeal cartilage (p = .001). No FDG-PET/CT-directed plan missed pathologically verified nodal disease. During the dose escalation exercise, we successfully increased the dose to 95% of the planning target volume (PTV95%) to a mean of 7490 cGy (range, 7153-8098 cGy). CONCLUSIONS We demonstrate early proof of the principle that FDG-PET/CT-guided IMRT planning can selectively target and intensify treatment of head and neck disease while reducing critical normal tissue doses. Routine clinical use of such planning should not be engaged until the accuracy of FDG-PET/CT is fully validated. Future directions, including refinement of treatment to gross disease and radiologically uninvolved neck nodal levels, are discussed.
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Affiliation(s)
- David L Schwartz
- Department of Radiation Oncology, University of Washington, Seattle, Washington, 1660 S. Columbian Way [174], Seattle, WA 98108-1597, USA.
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Frank SJ, Chao KSC, Schwartz DL, Weber RS, Apisarnthanarax S, Macapinlac HA. Technology Insight: PET and PET/CT in head and neck tumor staging and radiation therapy planning. ACTA ACUST UNITED AC 2005; 2:526-33. [PMID: 16205772 DOI: 10.1038/ncponc0322] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2005] [Accepted: 08/19/2005] [Indexed: 12/25/2022]
Abstract
The evolving utilization of functional imaging, mainly 2-[18F]fluoro-2-deoxyglucose (18FDG) imaging, with positron emission tomography (PET) and PET/CT, is profoundly altering head and neck tumor staging approaches, radiation treatment planning, and follow-up management. Tumor-node-metastasis staging with PET/CT has improved the characterization of patient disease versus CT, MRI, or PET alone, thereby affecting patient disease management. Therefore, the utilization of PET/CT is appropriate for head and neck cancer staging in the initial presentation and in the recurrent setting. In the setting of radiation therapy treatment planning, PET-directed tumor volume contouring is not ready for clinical practice without further technological improvements in imaging specificity/sensitivity and resolution. Patient or organ motion might interfere with the accuracy of anatomical co-alignment, and variability in defining the threshold of imaging signals on PET images can affect the contour of the biological tumor volume. The use of PET/CT for staging and detecting both primary and recurrent head and neck cancer is valuable; however, its application in radiation treatment planning should be viewed as investigational.
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Affiliation(s)
- Steven J Frank
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Fukui MB, Blodgett TM, Snyderman CH, Johnson JJ, Myers EN, Townsend DW, Meltzer CC. Combined PET-CT in the Head and Neck. Radiographics 2005; 25:913-30. [PMID: 16009815 DOI: 10.1148/rg.254045136] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Positron emission tomography (PET) with 2-[fluorine-18] fluoro-2-deoxy-D-glucose (FDG) is effective for monitoring head and neck cancer. However, lack of anatomic landmarks, variable physiologic FDG uptake, and asymmetric FDG distribution in the neck can confound image interpretation. This is particularly true in the treated neck, where distortion of normal tissue planes makes detection of early disease recurrence difficult with conventional computed tomography (CT) and magnetic resonance imaging. Combined PET-CT helps prevent the misinterpretation of FDG PET findings in patients with head and neck cancer. Superior localization of FDG uptake with this technique can improve diagnostic accuracy and help avoid interpretative pitfalls. In the future, development of tumor-specific ligands will enhance the usefulness of PET-CT in the detection of initial tumors and tumor recurrence, in the evaluation of tumors with low FDG avidity, and in treatment targeting. Furthermore, improved scanner resolution will help address the limitations of PET-CT with respect to small lesions and may make this modality more valuable in initial tumor staging.
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Affiliation(s)
- Melanie B Fukui
- Department of Radiology, Allegheny General Hospital, 320 E North Ave, Pittsburgh, PA 15212, USA.
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Dammann F, Horger M, Mueller-Berg M, Schlemmer H, Claussen CD, Claussen C, Hoffman J, Eschmann S, Bares R. Rational Diagnosis of Squamous Cell Carcinoma of the Head and Neck Region: Comparative Evaluation of CT, MRI, and18FDG PET. AJR Am J Roentgenol 2005; 184:1326-31. [PMID: 15788619 DOI: 10.2214/ajr.184.4.01841326] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE We sought to evaluate the efficiency of (18)FDG PET, CT, and MRI for the preoperative staging of squamous cell carcinoma (SCC) of the head and neck region. CONCLUSION MRI is recommended as the method of choice in the preoperative evaluation of SCC of the oral cavity and the oropharynx. PET can provide relevant diagnostic information in case of equivocal findings by MRI or CT. Routine use of PET, however, does not appear to be necessary if optimized MRI is available.
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Affiliation(s)
- Florian Dammann
- Department of Diagnostic Radiology, University Hospital Tuebingen, Hoppe-Seyler-Strasse 3, Tuebingen D-72076, Germany
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Abstract
The technological revolution in imaging during recent decades has transformed the way image-guided radiation therapy is performed. Anatomical imaging (plain radiography, computed tomography, magnetic resonance imaging) greatly improved the accuracy of delineating target structures and has formed the foundation of 3D-based radiation treatment. However, the treatment planning paradigm in radiation oncology is beginning to shift toward a more biological and molecular approach as advances in biochemistry, molecular biology, and technology have made functional imaging (positron emission tomography, nuclear magnetic resonance spectroscopy, optical imaging) of physiological processes in tumors more feasible and practical. This review provides an overview of the role of current imaging strategies in radiation oncology, with a focus on functional imaging modalities, as it relates to staging and molecular profiling (cellular proliferation, apoptosis, angiogenesis, hypoxia, receptor status) of tumors, defining radiation target volumes, and assessing therapeutic response. In addition, obstacles such as imaging-pathological validation, optimal timing of post-therapy scans, spatial and temporal evolution of tumors, and lack of clinical outcome studies are discussed that must be overcome before a new era of functional imaging-guided therapy becomes a clinical reality.
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Affiliation(s)
- Smith Apisarnthanarax
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
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