Results 21 to 30 of about 81,928 (274)

Adaptive Radiotherapy for an Uncommon Chloroma [PDF]

Case Reports in Oncology, 2016
Granulocytic sarcomas, also referred to as chloromas or myeloid sarcomas, are extramedullary neoplasms that are composed of immature myeloid cells. This uncommon disease is known to be radiosensitive. However, the total dose and dose per fraction are not standardized.
Soufya Majdoul, Laurianne Colson-Durand, Nu Hanh To, Yazid Belkacemi   +3 more
openaire   +3 more sources

Feasibility study of adaptive radiotherapy for esophageal cancer using artificial intelligence autosegmentation based on MR-Linac

Frontiers in Oncology, 2023
ObjectiveWe proposed a scheme for automatic patient-specific segmentation in Magnetic Resonance (MR)-guided online adaptive radiotherapy based on daily updated, small-sample deep learning models to address the time-consuming delineation of the region of ...
Huadong Wang, Huadong Wang, Xin Liu, Xin Liu, Yajun Song, Yajun Song, Peijun Yin, Peijun Yin, Jingmin Zou, Jingmin Zou, Xihua Shi, Yong Yin, Zhenjiang Li   +12 more
doaj   +1 more source

Adaptive Radiotherapy for Anatomical Changes

Seminars in Radiation Oncology, 2019
The anatomy of cancer patients changes between radiation treatment planning and delivery as well as over the course of radiotherapy. Adaptive radiotherapy (ART) aims to deliver radiation accurately and precisely in the presence of such changes. To that end, ART uses an imaging feedback loop to quantify these changes and modify the treatment plan ...
Sonke, Jan-jakob, Aznar, Marianne, Rasch, Coen   +2 more
openaire   +4 more sources

The Changes in Pharyngeal Constrictor Muscles Related to Head and Neck Radiotherapy: A Systematic Review

Technology in Cancer Research & Treatment, 2020
It is well known that radiation damage of the pharyngeal constrictor muscles, the glottic larynx, and the supraglottic larynx may lead to dysphagia, an unwanted effect of head and neck radiotherapy.
Jakub Grepl, Igor Sirak PhD, Milan Vosmik PhD, Ales Tichy PharmD, PhD   +3 more
doaj   +1 more source

Protocol for tumour-focused dose-escalated adaptive radiotherapy for the radical treatment of bladder cancer in a multicentre phase II randomised controlled trial (RAIDER): radiotherapy planning and delivery guidance

BMJ Open, 2020
Introduction Daily radiotherapy delivered with radiosensitisation offers patients with muscle invasive bladder cancer (MIBC) comparable outcomes to cystectomy with functional organ preservation.
Rebecca Lewis, Hugh Mostafid, Joanne Creswell, Emma Hall, Shaista Hafeez, Emma Patel, Amanda Webster, Karole Warren-Oseni, Elizabeth Miles, Robert Huddart, Daniel Saunders, Tomas Kron, Vibeke N Hansen, Helen A McNair, Ananya Choudhury, Farshad Foroudi, Ann Henry, Duncan B McLaren, Anita V Mitra, Clare Griffin   +19 more
doaj   +1 more source

MR-Guided Radiotherapy for Head and Neck Cancer: Current Developments, Perspectives, and Challenges

Frontiers in Oncology, 2021
Based on the development of new hybrid machines consisting of an MRI and a linear accelerator, magnetic resonance image guided radiotherapy (MRgRT) has revolutionized the field of adaptive treatment in recent years.
Simon Boeke, David Mönnich, Janita E. van Timmeren, Panagiotis Balermpas   +3 more
doaj   +1 more source

Validating Dose Uncertainty Estimates Produced by AUTODIRECT: An Automated Program to Evaluate Deformable Image Registration Accuracy. [PDF]

, 2017
Deformable image registration is a powerful tool for mapping information, such as radiation therapy dose calculations, from one computed tomography image to another. However, deformable image registration is susceptible to mapping errors.
Chen, Josephine, Kim, Hojin, Kirby, Neil, Phillips, Justin, Pukala, Jason, Yom, Sue S   +5 more
core   +3 more sources

Geometric and Dosimetric Evaluation of Deep Learning-Based Automatic Delineation on CBCT-Synthesized CT and Planning CT for Breast Cancer Adaptive Radiotherapy: A Multi-Institutional Study

Frontiers in Oncology, 2021
PurposeWe developed a deep learning model to achieve automatic multitarget delineation on planning CT (pCT) and synthetic CT (sCT) images generated from cone-beam CT (CBCT) images. The geometric and dosimetric impact of the model was evaluated for breast
Zhenhui Dai, Yiwen Zhang, Lin Zhu, Junwen Tan, Geng Yang, Bailin Zhang, Chunya Cai, Huaizhi Jin, Haoyu Meng, Xiang Tan, Wanwei Jian, Wei Yang, Xuetao Wang   +12 more
doaj   +1 more source

Computed Tomography-Based Evaluation of Volume and Position Changes of the Target Region and Organs at Risk During Radiotherapy for Esophageal Cancer: A Pilot Study

Frontiers in Oncology, 2021
ObjectiveTo analyze changes in volume and position of target regions and organs at risk (OARs) during radiotherapy for esophageal cancer patients.MethodsOverall, 16 esophageal cancer patients who underwent radiotherapy, including 10 cases of intensity ...
Yi-mei Liu, Yi-mei Liu, Ying-lin Peng, Qi-wen Li, Guanzhu Shen, Ya-ru Ma, Mei-ning Chen, Jun Zhang, Li-rong Fu, Bo Qiu, Hui Liu, Xiao-wu Deng   +11 more
doaj   +1 more source

Some problems and errors in cytogenetic biodosimetry [PDF]

, 2016
Human radiosensitivity is a quantitative trait that is generally subject to binomial distribution. Individual radiosensitivity, however, may deviate significantly from the mean (by 2-3 standard deviations).
Kilchevsky, Alexander, Mosse, Irma, Nikolova, Nevena, Zhelev, Nikolai   +3 more
core   +5 more sources