Journal of radiosurgery and SBRT最新文献_第10页

The impact of unscheduled gaps and iso-centre sequencing on the biologically effective dose in Gamma Knife radiosurgery. 非计划间隙和等中心测序对伽玛刀放射外科生物有效剂量的影响。

IF 1.2

Journal of radiosurgery and SBRT Pub Date : 2021-01-01

Thomas Klinge, Marc Modat, Jamie R McClelland, Alexis Dimitriadis, Ian Paddick, John W Hopewell, Lee Walton, Jeremy Rowe, Neil Kitchen, Sébastien Ourselin

{"title":"The impact of unscheduled gaps and iso-centre sequencing on the biologically effective dose in Gamma Knife radiosurgery.","authors":"Thomas Klinge, Marc Modat, Jamie R McClelland, Alexis Dimitriadis, Ian Paddick, John W Hopewell, Lee Walton, Jeremy Rowe, Neil Kitchen, Sébastien Ourselin","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Establish the impact of iso-centre sequencing and unscheduled gaps in Gamma Knife® (GK) radiosurgery on the biologically effective dose (BED).Methods: A BED model was used to study BED values on the prescription iso-surface of patients treated with GK Perfexion™ (Vestibular Schwannoma). The effect of a 15 min gap, simulated at varying points in the treatment delivery, and adjustments to the sequencing of iso-centre delivery, based on average dose-rate, was quantified in terms of the impact on BED.Results: Depending on the position of the gap and the average dose-rate profiles, the mean BED values were decreased by 0.1% to 9.9% of the value in the original plan. A heuristic approach to iso-centre sequencing showed variations in BED of up to 14.2%, relative to the mean BED of the original sequence.Conclusion: The treatment variables, like the iso-centre sequence and unscheduled gaps, should be considered during GK radiosurgery treatments.","PeriodicalId":16917,"journal":{"name":"Journal of radiosurgery and SBRT","volume":"7 3","pages":"213-221"},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8055240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38907775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comparison of stereotactic body radiation therapy for metastases to the sacral spine and treatment of the thoracolumbar spine. 立体定向身体放射治疗骶骨和胸腰椎转移瘤的比较。

IF 1.2

Journal of radiosurgery and SBRT Pub Date : 2020-11-01 DOI: 10.1016/j.ijrobp.2020.07.2055

R. Kowalchuk, M. Waters, K. Richardson, K. Spencer, J. Larner, J. Sheehan, William H. McAllister, C. Kersh

引用次数: 1

Evaluation of two automated treatment planning techniques for multiple brain metastases using a single isocenter. 使用单一等中心对多发性脑转移瘤的两种自动化治疗计划技术的评估。

IF 1.2

Journal of radiosurgery and SBRT Pub Date : 2020-11-01 DOI: 10.1016/j.ijrobp.2020.07.682

Guoqiang Cui, Yun Yang, F. Yin, D. Yoo, Grace J. Kim, J. Duan

引用次数: 2

Robustness of single-isocenter multiple-metastasis stereotactic radiosurgery end-to-end testing across institutions 跨机构单等中心多转移立体定向放射外科端到端测试的稳健性

IF 1.2

Journal of radiosurgery and SBRT Pub Date : 2020-03-04 DOI: 10.21203/rs.3.rs-15983/v1

D. Saenz, N. Papanikolaou, E. Zoros, E. Pappas, M. Reiner, Lip Teck Chew, Hooi Yin Lim, S. Hancock, A. Nevelsky, C. Njeh, G. Anagnostopoulos

{"title":"Robustness of single-isocenter multiple-metastasis stereotactic radiosurgery end-to-end testing across institutions","authors":"D. Saenz, N. Papanikolaou, E. Zoros, E. Pappas, M. Reiner, Lip Teck Chew, Hooi Yin Lim, S. Hancock, A. Nevelsky, C. Njeh, G. Anagnostopoulos","doi":"10.21203/rs.3.rs-15983/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-15983/v1","url":null,"abstract":"The accuracy of stereotactic radiosurgery (SRS) to multiple metastases with a single-isocenter using high definition dynamic radiosurgery (HDRS) was evaluated across institutions. An SRS plan was delivered at six HDRS-capable institutions to an anthropomorphic phantom consisting of point, film, and 3D-gel dosimeters. Direct dose comparison and gamma analysis were used to evaluate the accuracy. Point measurements averaged across institutions were within 1.2±0.5%. The average gamma passing rate in the film was 96.6±2.2% (3%/2 mm). For targets within 4 cm of the isocenter, the 3D dosimetric gel gamma passing rate averaged across institutions was >90% (3%/2 mm). The targeting accuracy of high definition dynamic radiosurgery assessed by geometrical offset of the center of dose distributions across multiple institutions in this study was within 1 mm for targets within 4 cm of isocenter. Across variations in clinical practice, comparable dosimetry and localization is possible with this treatment planning and delivery technique.","PeriodicalId":16917,"journal":{"name":"Journal of radiosurgery and SBRT","volume":"7 1","pages":"223 - 232"},"PeriodicalIF":1.2,"publicationDate":"2020-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47841197","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: 1

Accuracy and efficiency of image-guided radiation therapy (IGRT) for preoperative partial breast radiosurgery. 影像引导放射治疗(IGRT)在乳房部分放射手术术前的准确性和效率。

IF 1.2