Results 101 to 110 of about 27,528 (287)

Enhanced analysis of gating latency in 0.35T MR‐linac through innovative time synchronization of a motion phantom and plastic scintillation detector

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa   +4 more
wiley   +1 more source

Medical station for image processing and visualization of the brain electrical activity on a three-dimensional reconstruction of the patient's head

open access: yesIngeniería e Investigación, 2003
This paper presents a review of some researchs in the computer graphics field conducted by OHWAHA to solve medical problems. Particulary, a frame work to generate a three-dimensional human head model from a stack of brain images obtained by magnetic ...
Manuel Guillermo Forero, Duvier Zulanga
doaj  

Energy dependence of the GAFCHROMIC LD‐V1 in the diagnostic radiographic modalities

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The GAFCHROMIC LD‐V1 radiochromic film is widely used in dosimetry because it can provide high‐resolution two‐dimensional dose distributions without processing. This study aimed to evaluate the response characteristics at different effective energies, from the low‐energy range of mammography to the high‐energy range of computed tomography. Net
Tatsuhiro Gotanda   +9 more
wiley   +1 more source

Efficacy of Navigation in Skull Base Surgery Using Composite Computer Graphics of Magnetic Resonance and Computed Tomography Images.

open access: gold, 2001
Nakamasa Hayashi   +6 more
openalex   +2 more sources

Long‐term stability analysis of beam shape in a robotic radiosurgery system

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aimed to investigate the long‐term stability of CyberKnife beam profile parameters and assess their compliance with existing quality assurance (QA) guidelines. We evaluated beam profiles in both standard and diagonal planes over 3.5 years post‐installation to detect potential issues and ensure consistent beam quality.
Ryoichi Hinoto   +4 more
wiley   +1 more source

PANINI PROJECTION EFFECT AS MEANS OF REDUCING PERSPECTIVE DISTORTIONS

open access: yesСистемный анализ и прикладная информатика, 2016
The method based on Panini projection to reduce perspective distortions of images with wide viewing angle is considered. The analysis of the features of construction of Panini projection is provided.
P. A. Kachanov   +2 more
doaj  

Radiotherapy medical physics in the Philippines: A contemporary overview

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose With cancer ranking as the third leading cause of death in the Philippines and a disparity in healthcare resources across regions, this research aimed to assess the state of radiotherapy medical physics in the country. Methodology The study utilized a comprehensive online survey with 94 structured questions answered by 19 clinics ...
John Paul C. Cabahug   +4 more
wiley   +1 more source

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