Open AccessStudy of the effects of dwell time deviation constraints on inverse planning simulated annealing optimized plans of intracavitary brachytherapy of cancer cervix
Author(s) -
Saurabh Roy,
V. Subramani,
Kishore Singh,
Akanksha Rathi,
Supriya Arora,
Aggarwal Aditi
Publication year - 2019
Publication title -
journal of cancer research and therapeutics/journal of cancer research and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 39
eISSN - 0973-1482
pISSN - 1998-4138
DOI - 10.4103/jcrt.jcrt_246_18
Subject(s) - brachytherapy , dwell time , radiation treatment planning , nuclear medicine , cervix , rectum , medicine , simulated annealing , computer science , radiology , surgery , algorithm , radiation therapy , cancer , clinical psychology
High Dose Rate (HDR) remote afterloading brachytherapy machine and advanced treatment planning system have made it possible to make variations in individual dwell times across a catheter according to tumour density and for sparing normal structures. New inverse planning technique such as Inverse Planning Simulated Annealing (IPSA) has also been introduced. But very few institutions are venturing towards volume based IPSA optimised intracavitary brachytherapy. This study focuses on dwell time deviation constraint (DTDC) feature of IPSA based optimization which restricts the large variation of dwell time across the catheter.