Results 191 to 200 of about 1,576,352 (284)

Author Correction: Spatial-temporal contrast sensitivity of the eye alignment reflex. [PDF]

Sci Rep, 2023
Dhungel D, Stevenson SB.
europepmc   +1 more source

Quantification and dosimetric impact of intra‐fractional bladder changes during CBCT‐guided online adaptive radiotherapy for pelvic cancer treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study quantitatively evaluates bladder changes and their dosimetric impact during the on‐couch adaptive process on a commercial CBCT‐based online adaptive radiotherapy (CT‐gART) platform. Methods Data from 183 fractions of ten patients receiving online ART for pelvic cancers were analyzed retrospectively.
Ingrid Valencia Lozano, Elizabeth Buss, Catherine S. Spina, David P. Horowitz, Lisa A. Kachnic, Michael Price, Yi‐Fang Wang, Reshma Munbodh   +7 more
wiley   +1 more source

Comparison of the quantitative contrast sensitivity function between early keratoconus and normal eyes. [PDF]

BMC Ophthalmol
Xian Y, Ye Y, Sun L, Shen Y, Zhang X, Lu ZL, Zhou X, Zhao J.   +7 more
europepmc   +1 more source

A method for measuring spatial resolution based on clinical chest CT sequence images

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aimed to develop and validate a method for characterizing the spatial resolution of clinical chest computed tomography (CT) sequence images. Methods An algorithm for characterizing spatial resolution based on clinical chest CT sequence images was developed in Matlab (2021b).
Ying Liu, Jingying Shen, Haowei Zhang, Haikuan Liu   +3 more
wiley   +1 more source

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

Quantifying the Functional Relationship Between Visual Acuity and Contrast Sensitivity Function. [PDF]

Invest Ophthalmol Vis Sci
Lu ZL, Zhao Y, Lesmes LA, Dorr M.
europepmc   +1 more source

Contrast sensitivity as an outcome measure in patients with subfoveal choroidal neovascularisation due to age-related macular degeneration [PDF]

, 2004
Jordi Monés, Gary S. Rubin
openalex   +1 more source

Assessing Contrast Sensitivity Function in CRB1-Retinopathies: Exploring Child-Friendly Measures of Visual Function. [PDF]

Transl Vis Sci Technol
Rodriguez-Martinez AC, Tailor-Hamblin VK, Crossland MD, Higgins BE, Blindow E, Dekker TM, Greenwood JA, Henderson RH, Jones PR, Moosajee M.   +9 more
europepmc   +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

Effect of nimodipine on ocular blood flow and colour contrast sensitivity in patients with normal tension glaucoma [PDF]

, 2004
Alexandra Luksch
openalex   +1 more source