Investigating the effectiveness of monitoring relevant variations during IMRT and VMAT treatments by EPID-based 3D in vivo verification performed using planning CTs

• Published in: PloS one Vol. 14; no. 6; p. e0218803
• Main Authors: Li, Yinghui, Zhu, Jinhan, Shi, Jinping, Chen, Lixin, Liu, Xiaowei
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 28.06.2019; Public Library of Science (PLoS)
• Subjects: Accuracy; Algorithms; Biology and Life Sciences; Cancer therapies; Collimation; Computed tomography; Deformation; Deformation mechanisms; Dosimeters; Dosimetry; Engineering and Technology; Failure rates; Ghosts; Health physics; Histograms; Humans; Image reconstruction; In vivo methods and tests; Laboratories; Medical imaging; Medical research; Medicine and Health Sciences; Methods; Monitoring; Oncology; Phantoms, Imaging; Physical Sciences; Physics; Planning; Quality control; Radiation therapy; Radiotherapy; Radiotherapy Dosage; Radiotherapy, Intensity-Modulated - methods; Research and Analysis Methods; Sensitivity; Sensitivity analysis; Simulation; Studies; Technology; Thorax; Tomography, X-Ray Computed; Variation; China

The goal of this study was to investigate the effectiveness of monitoring relevant variations during treatments for electronic portal imaging device (EPID)-based 3D in vivo verification performed using planning CTs. Experiments on two simple phantoms (uniform and nonuniform phantoms) and a thoracic...