Journal article
IBS-GEC ESTRO-ABS recommendations for CT based contouring in image guided adaptive brachytherapy for cervical cancer
Radiotherapy and oncology, v 160, pp 273-284
01 Jul 2021
PMID: 34019918
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
•CT Based Contouring recommendations in IGABT for cervical cancer is a collaborative effort of 13 experts from Indian Brachytherapy Society (IBS), GEC-ESTRO and American Brachytherapy Society (ABS).•The recommendations are comprehensive, providing a pragmatic solution to contour target on CT Imaging at BT in different prevailing clinic-radiological environments which have not been comprehensively addressed.•We expect each institution with no access to MRI at BT to review their working environment and utilize appropriate definitions for defining the target to implement CT based IGABT for cervical cancers.
MR Imaging is regarded asthe gold standardfor Image Gudied Adaptive Brachytherapy (IGABT) for cervical cancer. However, its wide applicability is limited by its availability, logistics and financial implications. Use of alternative imaging like CTand Ultrasound (US) for IGABT has been attempted. In order to arrive at a systematic, uniform and international approach for CT based definition and contouring of target structures, GEC ESTRO, IBS and ABS agreed to jointly develop such recommendations based on the concepts and terms as published in the ICRU Report 89.
The minimum requirements are clinical examination & documentation, CT or MR imaging at diagnosis and at a minimum, CT imaging with the applicator in place. The recommendations are based on (i) assessment of the GTV at diagnosis and at brachytherapy, (ii) categorizing the response to external radiation into different clinical remission patterns, (iii) defining various clinico-radiological environments and (iv) definition & delineation of a target on CT imaging at the time of brachytherapy with the applicator in situ. CT based target contouring recommendations based on 4 remission categories within 8 defined environments, aim at improving the contouring accuracy for IGABT using CT, US and MRI as available. For each clinico-radiological environment, there is an attempt to minimize the specific uncertainties in order to arrive at the best possible contouring accuracy.
Evaluating feasibility & reproducibility, to achieve a benchmark towards a gold standard MR IGABT and further clinical research including outcomes with CT Based IGABT will become the next steps.
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Details
- Title
- IBS-GEC ESTRO-ABS recommendations for CT based contouring in image guided adaptive brachytherapy for cervical cancer
- Creators
- Umesh Mahantshetty - Homi Bhabha National InstituteRichard Poetter - Medical University of ViennaSushil Beriwal - UPMC Hillman Cancer CenterSurbhi Grover - University of BotswanaGurram Lavanya - Homi Bhabha National InstituteBhavana Rai - Post Graduate Institute of Medical Education and ResearchPrimoz Petric - University Hospital of ZurichKari Tanderup - Aarhus University HospitalHeloisa Carvalho - Universidade de São PauloNeamat Hegazy - Alexandria UniversitySandy Mohamed - Cairo UniversityTatsuya Ohno - Gunma UniversityNapapat Amornwichet - Chulalongkorn University
- Publication Details
- Radiotherapy and oncology, v 160, pp 273-284
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Radiation Oncology (and Nuclear Medicine)
- Web of Science ID
- WOS:000669800200009
- Scopus ID
- 2-s2.0-85107563620
- Other Identifier
- 991021897386804721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Oncology
- Radiology, Nuclear Medicine & Medical Imaging