A5087851185- Advanced Radiotherapy Techniques
- Medical Imaging Techniques and Applications
- Lung Cancer Diagnosis and Treatment
- Radiomics and Machine Learning in Medical Imaging
- Radiation Therapy and Dosimetry
- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Head and Neck Cancer Studies
- Advanced MRI Techniques and Applications
- Lung Cancer Treatments and Mutations
- Medical Image Segmentation Techniques
- Effects of Radiation Exposure
- Advances in Oncology and Radiotherapy
- Ultrasound and Hyperthermia Applications
- Medical Imaging and Analysis
- Colorectal Cancer Surgical Treatments
- Breast Cancer Treatment Studies
- Esophageal Cancer Research and Treatment
- Hepatocellular Carcinoma Treatment and Prognosis
- Radiopharmaceutical Chemistry and Applications
- MRI in cancer diagnosis
- Advanced Neural Network Applications
- AI in cancer detection
- Digital Radiography and Breast Imaging
- Radiation Detection and Scintillator Technologies
The Netherlands Cancer Institute
2016-2025
University of Amsterdam
2020-2024
Oncode Institute
2007-2024
Shell (Netherlands)
2017-2024
Amsterdam University Medical Centers
2020-2023
Erasmus MC Cancer Institute
2021
Medical Cañada (Spain)
2020
Dutch Cancer Society
2015-2018
University of Newcastle Australia
2017
Calvary Mater Newcastle Hospital
2017
A cone beam computed tomography (CBCT) scanner integrated with a linear accelerator is powerful tool for image guided radiotherapy. Respiratory motion, however, induces artifacts in CBCT, while the respiratory correlated procedures, developed to reduce motion axial and helical CT are not suitable such CBCT scanners. We have an alternative procedure evaluated its performance. This consists of retrospective sorting projection space, yielding subsets projections that each corresponds certain...
Purpose: Commercial CT‐based image‐guided radiotherapy (IGRT) systems allow widespread management of geometric variations in patient setup and internal organ motion. This document provides consensus recommendations for quality assurance protocols that ensure safety treatment fidelity such systems. Methods: The AAPM TG‐179 reviews clinical implementation aspects commercially available IGRT, each with their unique capabilities underlying physics. described are kilovolt megavolt cone‐beam CT,...
The use of electronic portal imaging devices (EPIDs) is a promising method for the dosimetric verification external beam, megavoltage radiation therapy—both pretreatment and in vivo . In this study, previously developed EPID back‐projection algorithm was modified IMRT techniques applied to an amorphous silicon EPID. By using algorithm, two‐dimensional dose distributions inside phantom or patient are reconstructed from images. model requires primary component at position A parametrized...
The potential for detrimental incidents and the ever increasing complexity of patient treatments emphasize need accurate dosimetric verification in radiotherapy. For this reason, all curative are verified, either pretreatment or vivo , by electronic portal imaging device (EPID) dosimetry Radiation Oncology Department Netherlands Cancer Institute‐Antoni van Leeuwenhoek hospital, Amsterdam, Netherlands. Since clinical introduction method January 2005 until August 2009, treatment plans 4337...
The ‐evaluation method is a tool by which dose distributions can be compared in quantitative manner combining dose‐difference and distance‐to‐agreement criteria. Since its introduction, the evaluation has been used many studies on verge of becoming preferred distribution comparison method, particularly for intensity‐modulated radiation therapy (IMRT) verification. One major disadvantage, however, long computation time, especially applies to three‐dimensional (3D) distributions. We present...
Respiratory motion causes artifacts in cone‐beam (CB) CT images acquired on slow rotating scanners integrated with linear accelerators. Respiration‐correlated CBCT has been proposed to correct for the respiratory but only a subset of CB projections is used reconstruct each frame 4D image and, therefore, adequate quality requires long acquisition times. In this article, authors develop an on‐the‐fly solution estimate and compensate reconstruction 3D from all projections. An priori model...
Treatment plans are usually designed, optimized, and evaluated based on the total 3D dose distribution, motivating a verification. The purpose of this study was to develop 2D transmission‐dosimetry method using an electronic portal imaging device (EPID) into simple that provides information. In new method, is reconstructed within patient volume in multiple planes parallel EPID for each gantry angle. By summing grids all beams, distribution treatment fraction obtained. algorithm uses contours...