Journal of Interventional Radiology and Nuclear Medicine最新文献

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Inquisition on the Photochemical Degradation of Silver Gelatin Photograph Print-Out 银明胶照片打印物光化学降解的研究

Journal of Interventional Radiology and Nuclear Medicine Pub Date : 2019-01-21 DOI: 10.29199/2637-7152/irnm.103025

R. Shaheen

引用次数: 2

SpaceOAR Hydrogel Placement in Patients Undergoing Proton Therapy and Low-Dose-Rate Brachytherapy 空间ar水凝胶在质子治疗和低剂量率近距离治疗患者中的应用

Journal of Interventional Radiology and Nuclear Medicine Pub Date : 2018-11-11 DOI: 10.29199/2637-7152/irnm-103024

E. Chung, N. Damico, B. Traughber, R. Ellis

{"title":"SpaceOAR Hydrogel Placement in Patients Undergoing Proton Therapy and Low-Dose-Rate Brachytherapy","authors":"E. Chung, N. Damico, B. Traughber, R. Ellis","doi":"10.29199/2637-7152/irnm-103024","DOIUrl":"https://doi.org/10.29199/2637-7152/irnm-103024","url":null,"abstract":"Dose escalation in prostate cancer has been shown to improve biochemical control in patients treated with definitive radiotherapy. Despite advances in radiation therapy techniques including intensity-modulated radiotherapy, volumetric arc therapy and proton therapy, rectal toxicity continues to be a concern. One method of reducing rectal dose and limiting subsequent toxicity is insertion of a biodegradeable hydrogel (SpaceOAR) to increase the distance between the rectum and prostate, thus decreasing the radiation dose received by the rectal wall. This device has been used in a variety of clinical scenarios in the treatment of prostate cancer, including external beam radiation therapy (EBRT), stereotactic body radiation therapy (SBRT) and brachytherapy. However, there have been no reported cases of a SpaceOAR hydrogel being placed prior to proton therapy that is later followed by a low dose-rate (LDR) prostate brachytherapy boost. We present a case report of SpaceOAR placement in a man who presented with intermediate risk prostate cancer who received combined modality therapy using androgen deprivation therapy (ADT) and proton therapy followed by an LDR brachytherapy boost. We report that SpaceOAR hydrogel was stable with no signs of radiation degradation post-EBRT. Additionally, placement of LDR seeds was feasible several months after rectal spacer implant and following a 5-week course of proton therapy with no dosimetric consequences. In conclusion, placement of an absorbable hydrogel spacer material can increase separation between the rectum and prostate and appears stable throughout proton therapy. The absorbable hydrogel is clearly visualized after proton therapy and appears safe for administration of LDR brachytherapy as a boost.","PeriodicalId":307140,"journal":{"name":"Journal of Interventional Radiology and Nuclear Medicine","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114815836","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

Calcium Score and Myocardial Spect: Do We Need Anything Else? 钙评分和心肌Spect:我们还需要什么吗?

Journal of Interventional Radiology and Nuclear Medicine Pub Date : 2018-08-01 DOI: 10.29199/2637-7152/irnm-101019

J. Foult

引用次数: 0