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Niitsu H, Mizumoto M, Li Y, Nakamura M, Ishida T, Iizumi T, Saito T, Numajiri H, Makishima H, Nakai K, Oshiro Y, Maruo K, Sakurai H. Tumor Response on Diagnostic Imaging after Proton Beam Therapy for Hepatocellular Carcinoma. Cancers (Basel) 2024; 16:357. [PMID: 38254846 PMCID: PMC10814092 DOI: 10.3390/cancers16020357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Follow-up after treatment for hepatocellular carcinoma (HCC) can be mostly performed using dynamic CT or MRI, but there is no common evaluation method after radiation therapy. The purpose of this study is to examine factors involved in tumor reduction and local recurrence in patients with HCC treated with proton beam therapy (PBT) and to evaluate HCC shrinkage after PBT. METHODS Cases with only one irradiated lesion or those with two lesions irradiated simultaneously were included in this study. Pre- and post-treatment lesions were evaluated using Response Evaluation Criteria in Solid Tumors (RECIST) by measuring the largest diameter. RESULTS The 6-, 12-, and 24-month CR + PR rates after PBT were 33.1%, 57.5%, and 76.9%, respectively, and the reduction rates were 25.1% in the first 6 months, 23.3% at 6-12 months, and 14.5% at 13-24 months. Cases that reached CR/PR at 6 and 12 months had improved OS compared to non-CR/non-PR cases. CONCLUSIONS It is possible that a lesion that reached SD may subsequently transition to PR; it is reasonable to monitor progress with periodic imaging evaluations even after 1 year of treatment.
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Affiliation(s)
- Hikaru Niitsu
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Masashi Mizumoto
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Yinuo Li
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Masatoshi Nakamura
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Toshiki Ishida
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Takashi Iizumi
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Takashi Saito
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Haruko Numajiri
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Hirokazu Makishima
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Kei Nakai
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
| | - Yoshiko Oshiro
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
- Department of Radiation Oncology, Tsukuba Medical Center Hospital, Tsukuba 305-8558, Ibaraki, Japan
| | - Kazushi Maruo
- Department of Biostatistics, Institute of Medicine, University of Tsukuba, Tsukuba 305-8576, Ibaraki, Japan;
| | - Hideyuki Sakurai
- Proton Medical Research Center, Department of Radiation Oncology, University of Tsukuba Hospital, Tsukuba 305-8576, Ibaraki, Japan; (H.N.); (Y.L.); (M.N.); (T.I.); (T.I.); (T.S.); (H.N.); (H.M.); (K.N.); (Y.O.); (H.S.)
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Tong VJW, Shelat VG, Chao YK. Clinical application of advances and innovation in radiation treatment of hepatocellular carcinoma. J Clin Transl Res 2021; 7:811-833. [PMID: 34988334 PMCID: PMC8715712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 02/08/2023] Open
Abstract
Background: Hepatocellular carcinoma (HCC) management has evolved over the past two decades, with the development of newer treatment modalities. While various options are available, unmet needs are reflected through the mixed treatment outcome for intermediate-stage HCC. As HCC is radiosensitive, radiation therapies have a significant role in management. Radiation therapies offer local control for unresectable lesions and for patients who are not surgical candidates. Radiotherapy also provides palliation in metastatic disease, and acts as a bridge to resection and transplantation in selected patients. Advancements in radiotherapy modalities offer improved dose planning and targeted delivery, allowing for better tumor response and safer dose escalations while minimizing the risks of radiation-induced liver damage. Radiotherapy modalities are broadly classified into external beam radiation therapy and selective internal radiation therapy. With emerging modalities, radiotherapy plays a complementary role in the multidisciplinary care of HCC patients. Aim: We aim to provide an overview of the role and clinical application of radiation therapies in HCC management. Relevance for Patients: The continuous evolution of radiotherapy techniques allows for improved therapeutic outcomes while mitigating unwanted adverse effects, making it an attractive modality in HCC management. Rigorous clinical studies, quality research and comprehensive datasets will further its application in the present era of evidence-based practice in Medicine.
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Affiliation(s)
- Valerie J W Tong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Vishal G Shelat
- Department of General Surgery, Tan Tock Seng Hospital, 308433, Singapore
| | - Yew Kuo Chao
- Department of Gastroenterology and Hepatology, Tan Tock Seng Hospital, 308433, Singapore
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