Results 61 to 70 of about 15,225 (147)

CBCT-Based Online Adaptive, Ultra-Hypofractionated Radiotherapy for Prostate Cancer: First Clinical Experiences

open access: yesMedicina
Background and Objectives: Ultra-hypofractionated radiotherapy (uhRT) is increasingly used for low- and intermediate-risk localized prostate cancer, necessitating exceptional precision compared to conventional fractionation.
Georg Wurschi   +7 more
doaj   +1 more source

Feasibility of quantitative relaxometry for prostate target localization and response assessment in magnetic resonance-guided online adaptive stereotactic body radiotherapy

open access: yesPhysics and Imaging in Radiation Oncology
Purpose: Multiparametric magnetic resonance imaging (MRI) is known to provide predictors for malignancy and treatment outcome. The inclusion of these datasets in workflows for online adaptive planning remains under investigation.
Ergys Subashi   +5 more
doaj   +1 more source

Full daily re-optimization improves plan quality during online adaptive radiotherapy

open access: yesPhysics and Imaging in Radiation Oncology
Background and purpose: Daily online treatment plan adaptation requires a fast workflow and planning process. Current online planning consists of adaptation of a predefined reference plan, which might be suboptimal in cases of large anatomic changes. The
Benjamin Tengler   +8 more
doaj   +1 more source

Deep Learning for CT Synthesis in Radiotherapy

open access: yesBioengineering
With the rapid development of artificial intelligence (AI), various deep learning (DL) methods have been introduced into radiation oncology. Among them, the generation of synthetic Computed Tomography (sCT) images has attracted increasing attention, as ...
Yike Guo   +7 more
doaj   +1 more source

Ultra-Hypofractionated Prostate Radiotherapy With Online Adaptive Technique: A Case Report

open access: yesCureus
Ultra-hypofractionated radiotherapy (UHF RT) is revolutionizing the treatment approach for low- and intermediate-risk prostate cancer patients. This study reports the planning process of UHF RT utilizing the cone beam computed tomography (CBCT)-based online adaptive radiotherapy (OART) treatment with the Ethos system, focusing on a comparative analysis
Yoganathan, SA   +4 more
openaire   +2 more sources

Markerless liver online adaptive stereotactic radiotherapy: feasibility analysisCervantes.

open access: yesPhysics in medicine and biology
Objective. Radio-opaque markers are recommended for image-guided radiotherapy in liver stereotactic ablative radiotherapy (SABR), but their implantation is invasive. We evaluate in thisin-silicostudy the feasibility of cone-beam computed tomography-guided stereotactic online-adaptive radiotherapy (CBCT-STAR) to propagate the target volumes without ...
Pierrard, Julien   +5 more
openaire   +2 more sources

ART workflow based on CBCT and end-to-end clinical dynamic phantom validation

open access: yesBMC Medical Imaging
Background In image-guided radiotherapy (IGRT), cone beam CT (CBCT) is usually used as a positional calibration for patients before treatment, but artifacts and inaccurate Hounsfield unit (HU) values prevent its use for clinical treatment dose ...
Zhenkai Li   +6 more
doaj   +1 more source

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