Results 71 to 80 of about 12,503 (204)

Retrospective Analysis of Survival and Adverse Effects Associated With Stereotactic Body Radiation Therapy in 12 Dogs With Hepatocellular Carcinoma

open access: yesVeterinary and Comparative Oncology, Volume 24, Issue 3, Page 485-498, September 2026.
ABSTRACT This retrospective analysis evaluated 12 dogs with hepatocellular carcinoma (HCC) who received stereotactic body radiation therapy (SBRT). Dogs received between 6 and 25 Grey (Gy) per fraction for 1–5 fractions for a total dose of 13–30 Gy. Eleven patients (92%) experienced acute adverse effects (AE), with the majority being VRTOG grade 2–3 ...
Victoria Lee Newberry   +3 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Development of a Polydimethylsiloxane‐Based Flexible Digital Bolus Dosimeter: From Unit‐Cell Characterization to Linear Array for Skin‐Dose Distribution Verification

open access: yesphysica status solidi (a), Volume 223, Issue 15, 5 August 2026.
A flexible digital bolus dosimeter platform is proposed to address the challenges of surface‐dose monitoring. The study evaluates point‐dose performance using an IDE substrate and extends this to spatial dose distributions using an fPCB‐integrated 24‐pixel array.
Moo‐Jae Han   +7 more
wiley   +1 more source

Probabilistic quality assurance of biopsy DVH thresholds in HDR prostate brachytherapy under localization uncertainty

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background MR‐US guided biopsies support biologic correlation in HDR prostate brachytherapy, but steep dose gradients and millimeter‐scale localization uncertainty limit the validity of nominal biopsy doses. Purpose To assess how localization uncertainty affects the robustness of biopsy DVH dose thresholds in HDR prostate brachytherapy and to ...
Matthew Muscat   +4 more
wiley   +1 more source

Using simple phantoms for teaching diagnostic and radiation therapy principles in hands‐on medical physics outreach

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Hands‐on, accessible learning experiences offer an effective way to introduce students to medical physics. This case report describes the development, implementation, and instructional design of two straightforward educational activities included in a single lesson plan.
Cara Jean Ronish   +2 more
wiley   +1 more source

Commissioning and clinical positioning assessment of a novel surface‐guided radiation therapy (SGRT) system at a C‐Arm linear accelerator

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Surface‐guided radiation therapy (SGRT) has been increasingly adopted in modern radiotherapy, enabling radiation‐dose‐free, marker‐free patient positioning with high accuracy. A novel SGRT system, LUNA 3D (LAP, Lüneburg, Germany), featuring a browser‐based interface, GPU‐accelerated surface reconstruction, high frame rates, large ...
Hui Khee Looe   +3 more
wiley   +1 more source

Assessment of dose distribution in pancreatic SABR in the presence of a metallic biliary stent using Monte Carlo modeling

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Stereotactic ablative radiotherapy (SABR) with dose escalation is increasingly used for pancreatic cancer; however, the dosimetric impact of metallic biliary stents remains poorly characterized. Self‐expanding metal stents (SEMS), commonly placed for obstructive jaundice, contain high‐density nitinol that produces computed ...
Ahmad Abbas   +2 more
wiley   +1 more source

The Essential Role of Monte Carlo Simulations for Lung Dosimetry in Liver Radioembolization with 90Y Microspheres

open access: yesApplied Sciences
This study compares various methodologies for lung dosimetry in radioembolization using Monte Carlo (MC) simulations. A voxelized anthropomorphic phantom, created from a real patient’s CT scan, preserved the actual density distribution of the lungs. Lung
Edoardo d’Andrea   +4 more
doaj   +1 more source

Development and Utility of an Imaging System for Internal Dosimetry of Astatine-211 in Mice. [PDF]

open access: yesBioengineering (Basel), 2023
Yagishita A   +7 more
europepmc   +1 more source

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