Results 81 to 90 of about 10,990 (209)

Implementation and validation of a commercial portal dosimetry software for intensity-modulated radiation therapy pre-treatment verification

Journal of Medical Physics, 2010
Electronic portal imaging devices (EPIDs) are extensively used for obtaining dosimetric information of pre-treatment field verification and in-vivo dosimetry for intensity-modulated radiotherapy (IMRT). In the present study, we have implemented the newly
Varatharaj C, Moretti Eugenia, Ravikumar M, Malisan Maria, Supe Sanjay, Padovani Renato   +5 more
doaj  

Feasibility Study of Transit Dosimetry (TD) with an Electronic Portal Imaging Device (EPID) in volumetric arc therapy (VMAT) for head and neck cancer (HNC) [PDF]

Iranian Journal of Medical Physics
Introduction: The progress in radiotherapy treatment modalities, such as Intensity Modulated Radiotherapy (IMRT) and Volumetric Arc Therapy (VMAT), introduces considerable complexity.
ARVIND DIUNDI, KIRAN SHARMA, CHANDI BHATT, SANGEETA HAZARIKA   +3 more
doaj   +1 more source

In vivo dosimetry in external beam photon radiotherapy: Requirements and future directions for research, development, and clinical practice

Physics and Imaging in Radiation Oncology, 2020
External beam radiotherapy with photon beams is a highly accurate treatment modality, but requires extensive quality assurance programs to confirm that radiation therapy will be or was administered appropriately.
Igor Olaciregui-Ruiz, Sam Beddar, Peter Greer, Nuria Jornet, Boyd McCurdy, Gabriel Paiva-Fonseca, Ben Mijnheer, Frank Verhaegen   +7 more
doaj   +1 more source

Impact of partial volume correction on radiomics reproducibility in theranostic SPECT/CT imaging

Medical Physics, Volume 53, Issue 4, April 2026.
Abstract Background: Radiomics has shown potential for quantitative characterization of tumors in molecular imaging; however, its clinical translation in theranostic 177Lu SPECT/CT remains limited due to poor robustness of extracted features to reconstruction variability and partial volume effects.
Mohammad Saber Azimi, Maryam Cheraghi, Mohammad Ali Ghodsi Rad, Mohadeseh Bayat, Maryam Alhashim, Habibollah Dadgar, Mahmoud Alabedi, Nahid Ibrahim, Enas Alwuhaib, Hossein Arabi, Arman Rahmim, Habib Zaidi   +11 more
wiley   +1 more source

Focal Spot, Fall/Winter 1994 [PDF]

, 1994
https://digitalcommons.wustl.edu/focal_spot_archives/1068/thumbnail ...

core   +1 more source

Creating A Dynamic, Multi-Purpose Correction for Multiple Geometries and Field Sizes to Account for Off-Axis and Asymmetric Backscatter With Varian Portal Dosimetry

, 2016
Intensity modulated radiation therapy and volumetric modulated arc therapy are increasingly common in radiation therapy due to their benefits of target conformity and normal tissue sparing.
Manigold, Remy
core   +1 more source

Experience with remote electronic portal imaging device-based dosimetric auditing for static and rotational intensity modulated radiotherapy

Physics and Imaging in Radiation Oncology
The aim of this work was to evaluate results of a remote electronic portal imaging based dosimetric auditing method using Task-Group 218 clinical gamma evaluation criteria (3%,2 mm, 10% dose threshold).
Peter B. Greer, Joerg Lehmann, Alisha Moore   +2 more
doaj   +1 more source

Dosimetry with a fluoroscopic electronic portal imaging device [PDF]

Medical Physics, 2000
Techniques for dosimetric verification of radiotherapy treatments using a CCD camera based fluoroscopic electronic portal imaging device (EPID) are described. The dosimetric characteristics of the EPID were investigated and a method was developed to derive portal dose images (PDIs) from measured EPID images.
openaire   +1 more source

Focal Spot, Summer 2002 [PDF]

, 2002
https://digitalcommons.wustl.edu/focal_spot_archives/1091/thumbnail ...

core   +1 more source

ACR Accreditation for Utah Valley Hospital’s Radiation Oncology Center

, 2019
Becoming an accredited clinic through the American College of Radiology (ACR) and their Radiation Oncology Practice Accreditation (ROPA) program will provide third-party evaluation of patient care to ensure the best treatment possible for patients.
Manigold, Remy
core   +1 more source