Recommendations from GEC ESTRO Breast Cancer Working Group (I): Target definition and target delineation for accelerated or boost Partial Breast Irradiation using multicatheter interstitial brachytherapy after breast conserving closed cavity surgery. Issue 3 (June 2015)

• Record Type: Journal Article
• Authors: Strnad, Vratislav; Hannoun-Levi, Jean-Michel; Guinot, Jose-Luis; Lössl, Kristina; Kauer-Dorner, Daniela; Resch, Alexandra; Kovács, György; Major, Tibor; Van Limbergen, Erik; Working Group Breast Cancer of GEC-ESTRO
• Is Part Of: Radiotherapy and oncology. Volume 115:Issue 3(2015:Jun.)
• Page Start: 342
• Page End: 348
• Publication Date: 2015-06
• Subjects: Oncology -- Periodicals; Radiotherapy -- Periodicals; Tumors -- Periodicals; Medical Oncology -- Periodicals; Neoplasms -- radiotherapy -- Periodicals; Radiotherapy -- Periodicals; Radiothérapie -- Périodiques; Cancérologie -- Périodiques; Tumeurs -- Périodiques; Electronic journals; 616.9940642
• DOI: 10.1016/j.radonc.2015.06.010
• Languages: English
• ISSNs: 0167-8140

Abstract

<abstract xml:lang="en" abstract-type="author" id="ab005"> <title id="st005">Abstract</title> <sec> <title id="st010">Objective</title> <p id="sp0005">The aim was to develop a delineation guideline for target definition for APBI or boost by consensus of the Breast Working Group of GEC-ESTRO.</p> </sec> <sec> <title id="st015">Proposed recommendations</title> <p id="sp0010">Appropriate delineation of CTV (PTV) with low inter- and intra-observer variability in clinical practice is complex and needs various steps as: (1) Detailed knowledge of primary surgical procedure, of all details of pathology, as well as of preoperative imaging. (2) Definition of tumour localization before breast conserving surgery inside the breast and translation of this information in the postoperative CT imaging data set. (3) Calculation of the size of total safety margins. The size should be at least 2 cm. (4) Definition of the target. (5) Delineation of the target according to defined rules.</p> </sec> <sec> <title id="st020">Conclusion</title> <p id="sp0015">Providing guidelines based on the consensus of a group of experts should make it possible to achieve a reproducible and consistent definition of CTV (PTV) for Accelerated Partial Breast Irradiation (APBI) or boost irradiation after breast conserving closed cavity surgery, and helps to define it after selected cases of oncoplastic surgery.</p> </sec> </abstract>