Residual intrafraction motion produced directionally asymmetric coverage loss, with the largest effect on the boosted GTV, and motion-inclusive dose reconstruction enabled derivation of practical asymmetric margins that improved robustness while identifying the tradeoff between target coverage and delivery efficiency.
Ka-Ho Tam, S. Jogi, A. Sobremonte et al.· medRxiv· 0 citations
DIR-based dose accumulation resulted in significantly lower HR-CTV dose estimates compared with SS, while dose differences for the bladder and rectum remained minimal, and future research should correlate DIR-based dosimetry with clinical outcomes to support anatomically adaptive brachytherapy.
Chitchaya Suwanraksa, Bheampos Rojkitjanuruk, Tanapat Suwanpan et al.· Journal of Health Science an...· 0 citations
BACKGROUND
Serial MRI during radiotherapy may enable early response assessment and guide adaptive treatment strategies; however, data on intratreatment volumetric changes remain limited. We herein report results of the MARGA-I-study, investigating target volume changes during MR-linac-based radio-(chemo-)therapy.
MAT...
Lena Kretzschmar, P. Wallimann, Lena M. Obergfell et al.· Radiotherapy and Oncology· 0 citations
The motorized attachment for SR3D acquisition reduced image variability and improved image quality, and may encourage broader use of sagittal reconstruction in HDR-BT, potentially improving patient outcomes.
David Contella, Chandima Edirisinghe, Kevin Barker et al.· Brachytherapy· 0 citations
In resource-limited settings, intensity-modulated radiotherapy (IMRT) is often unavailable, forcing reliance on three-dimensional conformal radiotherapy (3D-CRT) for advanced nasopharyngeal carcinoma (NPC). This limits curative potential due to challenges in sparing organs-at-risk (OARs) while covering complex target v...
AS Badiane, M. Dieng, Lef Edimo et al.· Journal Africain des Cas Cli...· 0 citations
Daily CBCT image-guided couch corrections maintain dosimetric accuracy during hypofractionated prostate radiotherapy and support safe implementation of tight PTV margins in resource-constrained public-sector healthcare settings.
Leanore Legoale-Sebopa, Sheynaz Bassa, H. V. Maselesele· South African Journal of Onc...· 0 citations
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