ArticleTechnology in cancer research & treatment
A Novel Adjustable Tandem and Ring Applicator for Improved Dosimetry in Cervical Cancer HDR Brachytherapy.
Article in Technology in cancer research & treatment. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
IntroductionCervical cancer brachytherapy requires highly conformal dose delivery while minimizing radiation exposure to surrounding organs at risk. However, conventional tandem and ring applicators are limited by fixed geometry that may not optimally accommodate patient-specific anatomy. The purpose of this work was to evaluate the dosimetric performance of a novel tandem and ring applicator (RTA) featuring adjustable tandem translation relative to the ring, intended to improve organ-at-risk (OAR) sparing while preserving target coverage in high-dose-rate (HDR) brachytherapy for cervical cancer.Methods and MaterialsA novel RTA allowing linear tandem translation within the ring plane was developed to enable patient-specific alignment without altering ring position. Two cervical cancer patients treated with external beam radiotherapy (45Gy/25 fractions) followed by HDR brachytherapy (27.5Gy/5 fractions) were analyzed. Conventional and novel RTAs were sequentially applied to acquire CT-based datasets. Plans were optimized for adequate HR-CTV D90 coverage while minimizing D2cm
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