Results 1 to 10 of about 74,991 (297)

Impacts of Increasing the Number of IMRT Beams on Heart’s Dose Distribution in Left Breast Irradiation: Dosimetric Study [PDF]

Iranian Journal of Medical Physics, 2022
Introduction: The main objective of this study was to assess the impacts of an increasing the number of IMRT beams on cardiac dose distribution in left-sided breast irradiation so that we can reduce the heart’s mean dose  up to clinically acceptable ...
Mohammad Ansari, Mohammad Khan, Sunil Sharma   +2 more
doaj   +1 more source

The impact of reduced-volume, intensity-modulated radiation therapy on disease control in nasopharyngeal carcinoma. [PDF]

PLoS ONE, 2015
OBJECTIVE:To investigate the feasibility of using intensity-modulated radiotherapy (IMRT) with reduced, high-dose target volumes for nasopharyngeal carcinoma (NPC).
Yu-Wei Lin, Chia-Chun Chen, Li-Ching Lin, Steve P Lee   +3 more
doaj   +1 more source

Dosimetric comparison of two dose expansion methods in intensity modulated radiotherapy for breast cancer

Radiation Oncology, 2023
Background To explore the dosimetric difference between IMRT-VB plan based on the establishment of external expansion structure and virtual bolus (VB) and IMRT-SF based on the skin flash (SF) tool of the Eclipse treatment planning system in postoperative
Ran Tang, Aimin Li, Yingjing Li, Guanhua Deng, Yufeng Wang, Qing Xiao, Luosheng Zhang, Yue Luo   +7 more
doaj   +1 more source

Investigating the clinical advantages of a robotic linac equipped with a multileaf collimator in the treatment of brain and prostate cancer patients. [PDF]

, 2015
The purpose of this study was to evaluate the performance of a commercially available CyberKnife system with a multileaf collimator (CK-MLC) for stereotactic body radiotherapy (SBRT) and standard fractionated intensity-modulated radiotherapy (IMRT ...
Descovich, Martina, Gottschalk, Alexander R, Lessard, Etienne, McGuinness, Christopher M, Nakamura, Jean L, Pinnaduwage, Dilini, Pouliot, Jean, Sims, Colin   +7 more
core   +2 more sources

IMRT QA using machine learning: A multi-institutional validation. [PDF]

, 2017
PurposeTo validate a machine learning approach to Virtual intensity-modulated radiation therapy (IMRT) quality assurance (QA) for accurately predicting gamma passing rates using different measurement approaches at different institutions.MethodsA Virtual ...
Chan, Maria F, Deasy, Joseph O, Lim, Seng Boh, Scheuermann, Ryan, Solberg, Timothy D, Valdes, Gilmer   +5 more
core   +2 more sources

Does Dose Volume Histogram of Parotid Glands Correlate with Xerostomia Radiation Therapy Oncology Group Scores in Locoregionally Advanced Head and Neck Cancer Patients Treated with Intensity-Modulated Radiation Therapy?

Asian Journal of Oncology, 2021
Introduction Xerostomia is an imminent complication of head and neck radiotherapy best assessed subjectively. This study aimed to evaluate the effects of sparing parotid glands with intensity-modulated radiation therapy (IMRT) on subjective xerostomia ...
Sajal Goel, Ritu Bhutani, Vivek Bansal, Ruchika Goel   +3 more
doaj   +1 more source

An Automated Treatment Plan Quality Control Tool for Intensity-Modulated Radiation Therapy Using a Voxel-Weighting Factor-Based Re-Optimization Algorithm. [PDF]

, 2016
Intensity-modulated radiation therapy (IMRT) currently plays an important role in radiotherapy, but its treatment plan quality can vary significantly among institutions and planners.
Cerviño, Laura, Gautier, Quentin, Jiang, Steve, Li, Nan, Li, Yongbao, Mell, Loren, Song, Ting, Zarepisheh, Masoud, Zhou, Linghong   +8 more
core   +4 more sources

A Study to Assess the Dosimetric Impact of the Anatomical Changes Occurring in the Parotid Glands and Tumour Volume during Intensity Modulated Radiotherapy using Simultaneous Integrated Boost (IMRT‐SIB) in Head and Neck Squamous Cell Cancers

Cancer Medicine, 2021
Background Anatomical variations in head and neck cancer during IMRT leads to volume shrinkage, results in dosimetric variations in tumour and normal tissue including parotid glands, with a risk of radiation toxicities.
Arunima Ghosh, Seema Gupta, Danial Johny, Vivek Vidyadhar Bhosale, Mahendra Pal Singh Negi   +4 more
doaj   +1 more source

Relevance of Combined Electron and Photon Beams in Radiotherapy of Head and Neck Cancers in the Era of Intensity-Modulated Radiotherapy

Asian Journal of Oncology, 2021
Introduction External beam radiotherapy (EBRT) for head and neck (H&N) cancers continues to be delivered using varied technologies, ranging from the old two-dimensional conventional radiotherapy (2DRT) techniques to the modern three-dimensional conformal
Vinod Pandey, K. C. Pandey, N. K. Pant, L. P. Verma   +3 more
doaj   +1 more source

Functional image-based radiotherapy planning for non-small cell lung cancer: a simulation study [PDF]

, 2009
Background and purpose: To investigate the incorporation of data from single-photon emission computed tomography (SPECT) or hyperpolarized helium-3 magnetic resonance imaging (He-3-MRI) into intensity-modulated radiotherapy (IMRT) planning for non-small ...
Bates, E.L., Bragg, C.M., Hatton, M.Q.F., Ireland, R.H., Wild, J.M.   +4 more
core   +1 more source