Results 21 to 30 of about 15,225 (147)

Technical Challenges of Real-Time Adaptive MR-Guided Radiotherapy

open access: yesFrontiers in Oncology, 2021
In the past few years, radiotherapy (RT) has experienced a major technological innovation with the development of hybrid machines combining magnetic resonance (MR) imaging and linear accelerators.
Daniela Thorwarth, Daniel A. Low
doaj   +1 more source

Online adaptive planning methods for intensity-modulated radiotherapy

open access: yesPhysics in Medicine & Biology, 2023
Abstract Online adaptive radiation therapy aims at adapting a patient's treatment plan to their current anatomy to account for inter-fraction variations before daily treatment delivery. As this process needs to be accomplished while the patient is immobilized on the treatment couch, it requires time-efficient adaptive planning methods
Zihang Qiu   +5 more
openaire   +3 more sources

Old dogs, new tricks: MR‐Linac training and credentialing of radiation oncologists, radiation therapists and medical physicists

open access: yesJournal of Medical Radiation Sciences, 2023
The introduction of magnetic resonance (MR) linear accelerators (MR‐Linacs) into radiotherapy departments has increased in recent years owing to its unique advantages including the ability to deliver online adaptive radiotherapy.
Louise Hogan   +12 more
doaj   +1 more source

Case Report: MR-LINAC-guided adaptive radiotherapy for gastric cancer

open access: yesFrontiers in Oncology, 2023
BackgroundThe stomach is one of the most deformable organs. Its shape can be easily affected by breathing movements, and daily diet, and it also varies when the body position is different.
Yajun Song   +8 more
doaj   +1 more source

Cone-beam computed tomography-guided online-adaptive radiotherapy for inoperable right colon cancer: First in human

open access: yesTechnical Innovations & Patient Support in Radiation Oncology, 2023
We report the case of a medically inoperable patient with localised colon cancer. Due to symptomatic bleeding, definitive radiotherapy (5 daily fractions of 5 Gy) has been performed using cone-beam computed tomography-based online-adaptive radiotherapy ...
Julien Pierrard   +5 more
doaj   +1 more source

A Method for Online Dose-Guided Adaptive Radiotherapy [PDF]

open access: yesCureus, 2014
A process was developed to allow the delivery of online dose-guided adaptive radiotherapy (DART). DART was defined as the method to utilize patient imaging data and treatment planning data, such as dose fluences to assess the validity and quality of the treatment and the dose delivered to the target volume and critical anatomical structures of the ...
Georg A. Weidlich, Uma Swamy
openaire   +1 more source

Fan beam CT-guided online adaptive external radiotherapy of uterine cervical cancer: a dosimetric evaluation

open access: yesBMC Cancer, 2023
Purpose To discuss the dosimetric advantages and reliability of the accurate delivery of online adaptive radiotherapy(online ART) for uterine cervical cancer(UCC). Methods and materials Six UCC patients were enrolled in this study.
Haibo Peng   +5 more
doaj   +1 more source

Online adaptive radiotherapy and dose delivery accuracy: A retrospective analysis

open access: yesJournal of Applied Clinical Medical Physics, 2023
AbstractPurposeWith online adaptive radiotherapy (ART), patient‐specific quality assurance (PSQA) testing cannot be performed prior to delivery of the adapted treatment plan. Consequently, the dose delivery accuracy of adapted plans (i.e., the ability of the system to interpret and deliver the treatment as planned) are not initially verified.
Bessieres, Igor   +5 more
openaire   +2 more sources

Adaptive radiotherapy: The Elekta Unity MR-linac concept

open access: yesClinical and Translational Radiation Oncology, 2019
Background and purpose: The promise of the MR-linac is that one can visualize all anatomical changes during the course of radiotherapy and hence adapt the treatment plan in order to always have the optimal treatment.
Dennis Winkel   +17 more
doaj   +1 more source

Towards Response ADAptive Radiotherapy for organ preservation for intermediate-risk rectal cancer (preRADAR): protocol of a phase I dose-escalation trial

open access: yesBMJ Open, 2023
Introduction Organ preservation is associated with superior functional outcome and quality of life (QoL) compared with total mesorectal excision (TME) for rectal cancer.
Miangela M Lacle   +28 more
doaj   +1 more source

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