1# Library to Find Best eBook for Read
Author : Juliana Cristina Martins
Release : 2023
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Towards EPID-based 3D in Vivo Dosimetry for Modern Radiation Therapy by : Juliana Cristina Martins
Download or read book Towards EPID-based 3D in Vivo Dosimetry for Modern Radiation Therapy written by Juliana Cristina Martins. This book was released on 2023. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ben Mijnheer
Release : 2017-10-31
Genre : Science
Kind : eBook
Book Rating : 228/5 ( reviews)
Book Synopsis Clinical 3D Dosimetry in Modern Radiation Therapy by : Ben Mijnheer
Download or read book Clinical 3D Dosimetry in Modern Radiation Therapy written by Ben Mijnheer. This book was released on 2017-10-31. Available in PDF, EPUB and Kindle. Book excerpt: Provides a complete overview of the principles, hardware, measurement methods, and clinical applications of three-dimensional dosimetry. Explains basic concepts with emphasis on 3D dose measurements and validation of 3D dose calculations as a key application of 3D dosimetry. Discusses accuracy requirements for 3D dosimetry in advanced radiotherapy as well as important topics such as audits, quality assurance, and testing. Presents state of the art detector and point detector instruments and systems, gel dosimetry, and electronic portal imaging device dosimetry. Addresses the main measurement approaches, from small-field dosimetry to 4D dosimetry, Monte Carlo techniques, and methods for quantifying differences in 3D dose distributions.
Author : Maria F. Chan
Release : 2018
Genre : Radiation dosimetry
Kind : eBook
Book Rating : 590/5 ( reviews)
Book Synopsis Recent Advancements and Applications in Dosimetry by : Maria F. Chan
Download or read book Recent Advancements and Applications in Dosimetry written by Maria F. Chan. This book was released on 2018. Available in PDF, EPUB and Kindle. Book excerpt: Features: Provides unique dosimetry for high intensity MR-guided ultrasound treatment, gold nanoparticle-enhanced radiotherapy, photodynamic therapy, thermal imaging in Bbrachytherapy, MR-guided radiotherapy, proton beam treatment, and high-definition end-to-end patient-specific dose verification. Offers clinical applications for all varieties of modern radiation detectors, and evolving dosimetry techniques including innovative calorimetry, TLD, Oone-scan film dosimetry, transmission detectors, real-time EPID dosimetry, best feasible DVH planning, 3D printing, 5D planning and delivery, as well as machine learning Summary This book provides a comprehensive collection of the newly emerging treatment modalities, covering high intensity ultrasound treatment, photodynamic therapy, MR-guided treatment machines, nanoparticle-enhanced radiotherapy, and proton beam therapy. The invited expert authors cover a wide range of the latest advancements and developments in dosimetry techniques as well asnd their clinical implications, including calorimetry, radiochromic film, transmission detectors, real-time portal dosimetry, TLD, thermal imaging dosimetry, 3D dosimetry, best feasible DVH planning, 5D planning and delivery, 3D printing, as well as machine learning in medical dosimetry. This book will bring the reader up-to-date with the state of the art in radiation dosimetry and best clinical practices using such advanced detectors.
Author : JiHyung Yoon
Release : 2015
Genre : Diagnostic imaging
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Four-dimensional in Vivo Dosimetry by Dose Reconstruction Using Continuous EPID Images and Phase Sorting Method by : JiHyung Yoon
Download or read book Four-dimensional in Vivo Dosimetry by Dose Reconstruction Using Continuous EPID Images and Phase Sorting Method written by JiHyung Yoon. This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: In vivo dosimetry is widely used for patient specific dose evaluation and treatment verification in external beam radiation therapy (EBRT). There is a growing interest in using an electronic portal imaging device (EPID) for in vivo dosimetry, by correlating pixel values of measured EPID images to three-dimensional (3D) dose in the patient. In this research, a non-iterative dose reconstruction method has been employed, which utilizes phantom and EPID response functions calculated from pre-acquired Computed Tomography (CT) image and simulated EPID image from Monte Carlo (MC) simulation. The accuracy of reconstructed dose, however, is limited by that of the simulated EPID image. In this study, a previously proposed density scaled model in XVMC code has been improved by physically relevant effective atomic number modeling and employing realistic phase space data. The new model has been tested under various field sizes and phantom thickness, including homogeneous and heterogeneous media. It has been shown that the calculated EPID images from the new EPID model are agreeable to the measured EPID images after field size and phantom thickness factors applied. The improved EPID model in MC code has been used in four-dimensional (4D) dose reconstruction. Considering the patient respiratory motion, breathing phase of acquired EPID images are determined by the phase sorting method for various treatment plans. For each phase, dose reconstruction has been performed using the sorted EPID images and 4D CT image of corresponding phase. The reconstructed 3D doses of each phase have been transformed to a reference phase to calculate the accumulated dose. The reconstructed doses have been shown good agreements to the forward 4D calculation in gamma analysis and dose-volume histogram (DVH) comparison. Based on the results, the new EPID model and the suggested phase sorting method accurately reconstruct the dose to the phantom for the cases shown in this study.
Author : Roel Arthur Rozendaal
Release : 2017
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Large-scale in Vivo EPID Dosimetry by : Roel Arthur Rozendaal
Download or read book Large-scale in Vivo EPID Dosimetry written by Roel Arthur Rozendaal. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: "Radiotherapy is a powerful method for treating cancer. It is also a very complex method, requiring many different systems and advanced machines to cooperate seamlessly. As such, Quality Assurance (QA) plays a very important role within radiotherapy; different QA systems are needed for different parts of the radiotherapy treatment chain. In vivo transit dosimetry takes in a unique spot in the range of QA tools available for radiotherapy: as it measures during treatment, it takes into account both the delivered dose and the patient anatomy. Two-dimensional dose measurements at the side where the radiation exits the patient allows for 2D and 3D reconstruction of the dose delivered to the patient, providing a means of directly comparing the delivered dose to the intended dose. Currently, these 2D measurements are done by using Electronic Portal Imaging Devices, or EPIDs, and used in the day-to-day practice of our clinic. The aim of this thesis was to improve on the patient safety in radiotherapy by enabling this EPID in vivo dosimetry system to be used efficiently on a large-scale, and ultimately in real-time."--Samenvatting auteur.
