Results 151 to 160 of about 1,723,588 (348)

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

Phase-aided Online Self-correction Method for High-accuracy Three-dimensional Measurement

, 2023
Xiaojie Zhang, Ziwei Wang, Zewei Cai, Xiaoli Liu, Xiang Peng   +4 more
openalex   +1 more source

Comprehensive clinical evaluation of novel 4DCT‐based lung function imaging methods

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Methods have been developed that apply image processing to 4DCTs to generate 4DCT‐ventilation/perfusion lung imaging. Traditional methods for 4DCT‐ventilation rely on Hounsfield‐Unit (HU) density‐change methods and suffer from poor numerical robustness while not providing 4DCT‐perfusion data.
Ehsan Golkar, Taindra Neupane, Lydia Wilson, Jennifer Kwak, Richard Castillo, Edward Castillo, Yevgeniy Vinogradskiy   +6 more
wiley   +1 more source

Using the Characteristics of Pulse Waveform to Enhance the Accuracy of Blood Pressure Measurement by a Multi-Dimension Regression Model [PDF]

, 2019
Shing-Hong Liu, Li-Jen Liu, Kuo‐Li Pan, Wenxi Chen, Tan-Hsu Tan   +4 more
openalex   +1 more source

High-Accuracy Three-Dimensional Deformation Measurement System Based on Fringe Projection and Speckle Correlation [PDF]

, 2023
Chuang Zhang, Cong Liu, Zhihong Xu
openalex   +1 more source

Open‐source deep‐learning models for segmentation of normal structures for prostatic and gynecological high‐dose‐rate brachytherapy: Comparison of architectures

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The use of deep learning‐based auto‐contouring algorithms in various treatment planning services is increasingly common. There is a notable deficit of commercially or publicly available models trained on large or diverse datasets containing high‐dose‐rate (HDR) brachytherapy treatment scans, leading to poor performance on images ...
Andrew J. Krupien, Yasin Abdulkadir, Dishane C. Luximon, John Charters, Huiming Dong, Jonathan Pham, Dylan O'Connell, Jack Neylon, James M. Lamb   +8 more
wiley   +1 more source

3D imaging for telemedical use

International Journal of Integrated Care, 2015
Line Bisgaard Jørgensen, Benjamin Schnack Rasmussen, Knud Yderstræde   +2 more
doaj   +3 more sources

Effect of Spatial Position in the Field of View on Dimensional Changes in Cone Beam Computed Tomography

Frontiers in Dentistry, 2017
Objectives: This study aimed to assess the relation between dimensional changes and object location in the field of view (FOV) using cone beam computed tomography (CBCT).
Mehrdad Panjnoush, Yasaman Kheirandish, Negar Zeini   +2 more
doaj  

Present Aspect of Accuracy in Dimension Measurement in Machine Shop (Supplementary Report)

, 1957
Akira Yamamoto, Yoshio Tomonaga
openalex   +2 more sources

An extension to the OVH concept for knowledge‐based dose volume histogram prediction in lung tumor volumetric‐modulated arc therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Volumetric‐modulated arc therapy (VMAT) treatment planning allows a compromise between a sufficient coverage of the planning target volume (PTV) and a simultaneous sparing of organs‐at‐risk (OARs). Particularly in the case of lung tumors, deciding whether it is possible or worth spending more time on further improvements of a treatment
Johann Brand, Juliane Szkitsak, Oliver J. Ott, Christoph Bert, Stefan Speer   +4 more
wiley   +1 more source