Results 21 to 30 of about 4,548,445 (364)

Visualising the urethra for prostate radiotherapy planning

Journal of Medical Radiation Sciences, 2021
The prostatic urethra is an organ at risk for prostate radiotherapy with genitourinary toxicities a common side effect. Many external beam radiation therapy protocols call for urethral sparing, and with modulated radiotherapy techniques, the radiation ...
M. Richardson, K. Skehan, L. Wilton, Joshua Sams, J. Samuels, J. Goodwin, P. Greer, S. Sridharan, Jarad Martin   +8 more
semanticscholar   +1 more source

Rectal dosimetry in intracavitary applications of cervix carcinoma: Comparison of two methods [PDF]

Archive of Oncology, 2002
BACKGROUND: Brachytherapy of cervix carcinoma often results in high doses to surrounding structures, such as rectum and bladder. Therefore, these organs should be closely monitored.
Baucal Milutin, Babić Jovan, Kuzmanović Zoran   +2 more
doaj   +1 more source

LET-weighted doses effectively reduce biological variability in proton radiotherapy planning [PDF]

Physics in Medicine and Biology, 2018
Variations in proton relative biological effectiveness (RBE) with linear energy transfer (LET) remain one of the largest sources of uncertainty in proton radiotherapy.
Stephen J McMahon, Harald Paganetti, Kevin M Prise   +2 more
openalex   +3 more sources

Online adaptive planning methods for intensity-modulated radiotherapy

Physics in Medicine and Biology, 2023
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.
Zihang Qiu, S. Olberg, D. den Hertog, A. Ajdari, T. Bortfeld, J. Pursley   +5 more
semanticscholar   +1 more source

Comparison of 3DCRT and IMRT out-of-field doses in pediatric patients using Monte Carlo simulations with treatment planning system calculations and measurements

Frontiers in Oncology, 2022
3DCRT and IMRT out-of-field doses in pediatric patients were compared using Monte Carlo simulations with treatment planning system calculations and measurements.PurposeOut-of-field doses are given to healthy tissues, which may allow the development of ...
Ana Cravo Sá, Ana Cravo Sá, Ana Cravo Sá, Andreia Barateiro, Bryan P. Bednarz, Pedro Almeida, Pedro Vaz, Tiago Madaleno   +7 more
doaj   +1 more source

In silico assessment of the dosimetric quality of a novel, automated radiation treatment planning strategy for linac-based radiosurgery of multiple brain metastases and a comparison with robotic methods

Radiation Oncology, 2018
Background To appraise the dosimetric features and the quality of the treatment plan for radiosurgery of multiple brain metastases optimized with a novel automated engine and to compare with plans optimized for robotic-based delivery. Methods A set of 15
Krzysztof Slosarek, Barbara Bekman, Jacek Wendykier, Aleksandra Grządziel, Antonella Fogliata, Luca Cozzi   +5 more
doaj   +1 more source

Assessment of image quality and dose calculation accuracy on kV CBCT, MV CBCT, and MV CT images for urgent palliative radiotherapy treatments. [PDF]

, 2016
A clinical workflow was developed for urgent palliative radiotherapy treatments that integrates patient simulation, planning, quality assurance, and treatment in one 30-minute session.
Barani, Igor, Braunstein, Steve, Cremers, Florian, Fogh, Shannon E, Held, Mareike, Morin, Olivier, Nakamura, Jean, Perez-Andujar, Angelica, Pouliot, Jean, Sneed, Penny K   +9 more
core   +1 more source

Comparative Dosimetric Evaluation of Volumetric-Modulated Arc Therapy (VMAT) Versus Intensity-Modulated Radiotherapy (IMRT) in Thoracic Esophageal Cancer [PDF]

Iranian Journal of Medical Physics, 2023
Introduction: With the introduction of Intensity Modulated Radiotherapy (IMRT) approach, better dosimetry results and patient outcomes has been attained for various anatomical sites.
Atul Mishra, Ramji Pathak, Kailash Mittal, SURENDRA MISHRA, Sudesh Singh, Anoop Srivastava   +5 more
doaj   +1 more source

Methyl-¹¹C-L-methionine positron emission tomography for radiotherapy planning for recurrent malignant glioma. [PDF]

Ann Nucl Med
Niitsu H, Fukumitsu N, Tanaka K, Mizumoto M, Nakai K, Matsuda M, Ishikawa E, Hatano K, Hashimoto T, Kamizawa S, Sakurai H.   +10 more
europepmc   +3 more sources

Dosimetric impact of gastrointestinal air column in radiation treatment of pancreatic cancer [PDF]

, 2017
OBJECTIVE: Dosimetric evaluation of air column in gastrointestinal (GI) structures in intensity modulated radiation therapy (IMRT) of pancreatic cancer.
Cardenes, Higinia R., Corn, Jonathan B., Das, Indra J., Estabrook, Neil C., Ewing, Marvene M.   +4 more
core   +1 more source