Results 61 to 70 of about 8,057,312 (144)

Hyperpolarized MRI in Oncology—A Review of Clinical Studies and Evaluation of Preclinical Liver Studies

NMR in Biomedicine, Volume 39, Issue 10, October 2026.
Hyperpolarized MRI is a promising clinical imaging modality in oncology, offering at least nine imaging contrasts obtainable with hyperpolarized [1‐13C]pyruvate as the injected agent, depending on the tissue and condition under investigation. Preclinical studies suggest that hyperpolarized MRI is warranted for detecting hepatocellular carcinoma within ...
Naama Lev‐Cohain, Jacob Sosna, Rachel Katz‐Brull   +2 more
wiley   +1 more source

A Comparison of Planned Dose in TBI VMAT Treatment with Dosimetry Using Portal Dosimetry® and IBA MatriXX®

Brazilian Journal of Radiation Sciences
Bone Marrow Transplant (BMT) is an essential therapeutic intervention in the treatment of diseases such as leukemia and lymphoma, where Total Body Irradiation (TBI) plays a crucial role by eradicating residual diseases and inducing immunosuppression ...
Juan Sousa, I Lima, D Olbi, Lucas Nascimento, Andre Fidelis, Maria Luiza Maciel, Luiz da Rosa, Simone Coutinho Cardoso   +7 more
doaj   +1 more source

Prospective estimation of water equivalent diameter and SSDE using 3D landmark CT scans

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background 3D Landmark (3DLM) scans have recently been introduced in some new CT scanners for automatic scan planning instead of paired 2D localizers, with potential additional utility. Purpose The purpose of this work was to measure the accuracy and precision of 3DLM scans for determining water equivalent diameter (Dw${{D}_w}$) and size ...
Andrew M. Hernandez, Sarah Yoon, Michael T. Corwin, Eric S. Diaz, Ahmadreza Ghasemiesfe, Sarah E. McKenney, John M. Boone   +6 more
wiley   +1 more source

Beam geometry optimization and convergence mode evaluation for knowledge‐based planning of hippocampal avoidance whole‐brain radiotherapy: A cross‐platform study with quantitative scorecard assessment

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Hippocampal avoidance whole‐brain radiotherapy (HA‐WBRT) is used to treat brain metastases while preserving cognitive function by sparing the hippocampi. Volumetric modulated arc therapy (VMAT) is commonly used due to its ability to generate conformal dose distributions.
Anh Lam, Kirk Luca, Mandeep Kaur, Keyur D. Shah, Julia Seng, Kathryn Benner, Matthew Thomas, Hui‐Kuo Shu, Xiaofeng Yang, Chih‐Wei Chang, Justin Roper, Jie Ding   +11 more
wiley   +1 more source

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  

A remote EPID-based dosimetric TPS-planned audit of centers for clinical trials: outcomes and analysis of contributing factors

Radiation Oncology, 2018
Background A novel remote method for external dosimetric TPS-planned auditing of intensity modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT) for clinical trials using electronic portal imaging device (EPID) has been developed. The
Narges Miri, Kimberley Legge, Kim Colyvas, Joerg Lehmann, Philip Vial, Alisha Moore, Monica Harris, Peter B. Greer   +7 more
doaj   +1 more source

Dosimetric impact of aperture‐restricted VMAT on heart dose in breast cancer treated with regional nodal irradiation

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Volumetric modulated arc therapy (VMAT) is increasingly used for breast and chest wall (CW) treatment with regional nodal irradiation (RNI) because of its ability to sculpt dose around complex target volumes. However, VMAT can increase low‐dose radiation to surrounding normal tissues and particularly increase cardiac dose.
Anh Hong Duong, Mandeep Kaur, Sunil W. Dutta, Tsegawbizu Gebru, Jacob Adams, Mark Cicchino, Reshma Jagsi, Sheela Hanasoge, Oluwatosin Kayode, Eduard Schreibmann, Hania Al‐Hallaq, Matthew Thomas, Xiaofeng Yang, Shadab Momin, Justin Roper, Kirk Luca, Jie Ding   +16 more
wiley   +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

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

Australian Society of Medical Imaging and Radiation Therapy Image Registration in Radiation Therapy Position Paper

Journal of Medical Radiation Sciences, Volume 73, Issue 3, Page 345-351, September 2026.
The ASMIRT Image Registration Working Party outlines the critical role of radiation therapists in performing, assessing and documenting rigid and deformable image registration across treatment planning, delivery and adaptive workflows. The position paper emphasises consistent nomenclature, robust QA processes, strong collaboration with diagnostic ...
Tamara Barry, Huong Nguyen, Laurel Schmidt, Kate Stewart, Nigel Anderson   +4 more
wiley   +1 more source