Therapeutic radiology and oncology最新文献_第2页

Feasibility assessment of proton treatment for ventricular tachycardia—treatment planning study 质子治疗室性心动过速的可行性评估-治疗计划研究

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-21-43

Hsuan-Ting Wang, Lung‐Sheng Wu, Y. Chou, Yung-Shin Yeh, Kun-Chi Yen, J. Chang, Hsiao-Chieh Huang

{"title":"Feasibility assessment of proton treatment for ventricular tachycardia—treatment planning study","authors":"Hsuan-Ting Wang, Lung‐Sheng Wu, Y. Chou, Yung-Shin Yeh, Kun-Chi Yen, J. Chang, Hsiao-Chieh Huang","doi":"10.21037/tro-21-43","DOIUrl":"https://doi.org/10.21037/tro-21-43","url":null,"abstract":"Background: Photon radiotherapy has been demonstrated as an emergent role for ablation of ventricular tachycardia (VT). Compare to photon radiotherapy, proton with rapidly distal fall off is an advantage in radiotherapy. Therefore, the feasibility assessment of a single fraction proton irradiation for VT instead of the photon therapy is investigated in this study. Methods: Two patients treated with and an implantable cardioverter-defibrillator (ICD) implantation and repeated catheter ablations were retrospective selected for study. Targeted lesions in image set, including left ventricular summit and right ventricular outflow tract septum and nearby organs at risk, were contoured by cardiologist and radiation oncologist. The target dose coverage and dose in organs at risk by using the photon volumetric arc therapy, proton wobbling and proton pencil beam scanning treatment technique were evaluated respectively. Results: In comparison of dose volume parameters and isodose distributions including R30, R50 (ratio of the 50% and 30% of prescription isodose volume to the volume of planning target volume (PTV) among three different techniques. The conformal index and homogeneity index in all type of treatment plans are demonstrated to deliver a conformal, homogeneous dose to the target area. And, showing no difference in the proton wobbling and proton pencil beam technique in nearly all result. Conclusions: This treatment planning study indicated that using the proton beam to treat VT is a feasible therapeutic option. Compared to photon therapy treatment planning, proton can offer lower radiation dose to heart and lung with the same conformal index. Nevertheless, several issues require consideration in future studies, including accurate patient localization, motion margin evaluation of respiration and heartbeat, dose measurement, and verification of small field irradiation.","PeriodicalId":93236,"journal":{"name":"Therapeutic radiology and oncology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42901482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retrospective analysis of dosimetry on hippocampal-avoidance whole-brain radiotherapy in a regional hospital 某地区医院海马回避全脑放疗剂量学回顾性分析

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-17

Ching-Heng Yen, Li-Tsun Shieh, Sung-Wei Lee, Chia-Chun Chen, S. Ho

引用次数: 0

Radiotherapy to the rare penile metastases of rectal adenocarcinoma: a case report 罕见直肠腺癌阴茎转移的放射治疗1例

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-26

Yun-Yun Weng, Sheau-Fang Yang, Ming-Yii Huang

引用次数: 0

Contralateral neck nodal outcomes and recurrence pattern of small well-lateralized oral cavity carcinoma—a single institution experience 小口腔癌的对侧颈部结结局和复发模式-单一机构的经验

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-27

Chung-Hsuan Lee, Yuan‐Hua Wu, W. Hsueh, T. Pao, Yung-Jen Cheng

引用次数: 0

Impact of adjuvant hysterectomy for bulky cervical cancer after definitive chemoradiotherapy with insufficient brachytherapy dose: a retrospective analysis 近距离放疗剂量不足的明确放化疗后辅助子宫切除术对大体积宫颈癌的影响:回顾性分析

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-12

Ching-Heng Yen, Ching-Chieh Yang, Sheng-Yow Ho, Sung-Wei Lee, Chia-Chun Chen, Li-Tsun Shieh

引用次数: 0

Dosimetric comparison of breath-hold and free-breathing techniques in left-sided breast cancer patients treated with proton pencil beam scanning 质子笔束扫描治疗左乳腺癌症患者呼吸暂停和自由呼吸技术的剂量比较

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-5

E. Gogineni, Z. Fellows, W. Hrinivich, Heng Li, V. Croog, J. Wright, K. Sheikh

引用次数: 0

Recent progress in pencil beam scanning FLASH proton therapy: a narrative review 铅笔束扫描FLASH质子治疗的最新进展:述评

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-1

S. Wei, C. Shi, Chin-Cheng Chen, Sheng Huang, R. Press, J. I. Choi, C. Simone, Haibo Lin, Minglei Kang

{"title":"Recent progress in pencil beam scanning FLASH proton therapy: a narrative review","authors":"S. Wei, C. Shi, Chin-Cheng Chen, Sheng Huang, R. Press, J. I. Choi, C. Simone, Haibo Lin, Minglei Kang","doi":"10.21037/tro-22-1","DOIUrl":"https://doi.org/10.21037/tro-22-1","url":null,"abstract":"Background and Objective : Recent experimental studies using ultra-high dose rate radiation therapy (FLASH-RT) have shown improved normal tissue sparing and comparable tumor control compared to conventional dose rate RT. Pencil beam scanning (PBS) proton therapy with superior dosimetry characteristics has begun to draw attention to the delivery of conformal FLASH-RT for preclinical studies. This review aims to provide recent updates on the development of PBS FLASH-RT. Method s: The information summarized in this review article is based on search results in databases such as PubMed and search engines like Google Scholar, with keywords including pencil beam scanning, proton therapy, proton FLASH, Bragg peak FLASH, etc., with English articles from the year of 2014-2022. Content and Findings: This review summarizes of recent developments in PBS FLASH proton therapy (FLASH-PT), including PBS dose rate characterization, current delivery limitations, treatment planning, and biological investigations. Conclusions: As PBS FLASH delivery has enabled successful biological studies using transmission beams, the further improvement in PBS Bragg peak FLASH technologies will result in more advanced treatment plans associated with potentially improved outcomes.","PeriodicalId":93236,"journal":{"name":"Therapeutic radiology and oncology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43441984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Outcome of reduced-dose stereotactic radiosurgery for patients with vestibular schwannoma 小剂量立体定向放射治疗前庭神经鞘瘤的疗效

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-15

C. Chew, Moon-Sing Lee, Jin-Cherng Chen, Tsung-Hsien Wu, W. Chiou, Hon-Yi Lin, Liang-Cheng Chen, P. Yeh, S. Hung

引用次数: 0

Who gains from repeat radiosurgery for progressive previously treated brain metastases? A case series 谁能从重复放射外科治疗既往进行性脑转移瘤中获益？案例系列

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-21-41

F. Ampil, C. Porter, A. Sin, T. Richards

引用次数: 0

Treating papillary tumors of the breast—role of adjuvant treatment—a narrative review 乳腺乳头状瘤的治疗——辅助治疗的作用——叙述性综述

Therapeutic radiology and oncology Pub Date : 2022-01-01 DOI: 10.21037/tro-22-19

Mohsin Khan

引用次数: 0