Dosimetric features‐driven machine learning model for DVH prediction in VMAT treatment planning
نویسندگان
چکیده
منابع مشابه
DVH- and NTCP-based dosimetric comparison of different longitudinal margins for VMAT-IMRT of esophageal cancer
PURPOSE To cover the microscopic tumor spread in squamous cell carcinoma of the esophagus (SCC), longitudinal margins of 3-4 cm are used for radiotherapy (RT) protocols. However, smaller margins of 2-3 cm might be reasonable when advanced diagnostic imaging is integrated into target volume delineation. Purpose of this study was to compare the dose distribution and deposition to the organs at ri...
متن کاملOptimal partial-arcs in VMAT treatment planning.
We present a method for improving the delivery efficiency of VMAT by extending the recently published VMAT treatment planning algorithm vmerge to automatically generate optimal partial-arc plans. A high-quality initial plan is created by solving a convex multicriteria optimization problem using 180 equi-spaced beams. This initial plan is used to form a set of dose constraints, and a set of part...
متن کاملQuantification and comparison the dosimetric impact of two treatment couch model in VMAT
The use of Monte Carlo treatment planning systems (TPS) in radiation therapy has increased the dosimetric accuracy of VMAT treatment sequences. However, this accuracy is compromised by not including the treatment couch into the treatment planning process. Therefore, the impact of the treatment couch on radiation delivery output was determined, and two different couch models (uniform couch model...
متن کاملOptimization of the dosimetric leaf gap for use in planning VMAT treatments of spine SABR cases
The dosimetric leaf gap (DLG) is a beam configuration parameter used in the Varian Eclipse treatment planning system, to model the effects of rounded MLC leaf ends. Measuring the DLG using the conventional sliding-slit technique has been shown to be produce questionable results for some volumetric modulated arc therapy (VMAT) treatments. This study therefore investigated the use of radiochromic...
متن کاملBeyond The Dvh - Spatial And Biological Radiotherapy Treatment Planning
BEYOND THE DVH --SPATIAL AND BIOLOGICAL RADIOTHERAPY TREATMENT PLANNING by BO ZHAO August 2010 Advisor: Dr. Jay Burmeister Co-Advisor: Dr. Michael C. Joiner Major: Medical Physics Degree: Doctor of Philosophy Purpose: Both spatial and biological information are necessary in order to perform true optimization of a treatment plan and for predicting clinical outcome. The goal of this work is to de...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Medical Physics
سال: 2019
ISSN: 0094-2405,2473-4209
DOI: 10.1002/mp.13334