Results 221 to 230 of about 9,480,081 (415)

Optical image processing to determine the optical properties of cellular membranes

, 1984
M. L. Calvo, Margarita Chevalier, Carlos Carreras   +2 more
openalex   +2 more sources

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

Journal 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, Tianjun Ma, Haya Aljuaid, Siyong Kim, William Y. Song   +4 more
wiley   +1 more source

Quantitative quality control of 3D water tank using image analysis

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and objective Accurate beam data acquisition using three‐dimensional (3D) water tanks is essential for beam commissioning and quality control (QC) in clinical radiation therapy. This study introduces a novel method for quantitative QC of the system, utilizing MV images and webcam videos.
Yuki Tanimoto, Kohei Sugimoto, Kazunobu Koshi, Akira Hiroshige, Shohei Yoshida, Yoshiki Fujita, Atsuki Nakahira, Daiki Nakanishi, Hirofumi Honda, Masataka Oita   +9 more
wiley   +1 more source

Optical image subtraction through speckle modulated by young fringes

, 1980
Héctor Rabal, Néstor Bolognini, Enrique E. Sicre, M. Garavaglia   +3 more
openalex   +2 more sources

Automated rapidplan model validation using Eclipse scripting API

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract RapidPlan offers efficiency gains and quality improvements in treatment planning. Prior to its use in the clinic, it requires an extensive validation procedure in which established clinical plans and those generated by the model are compared. The manual iterative nature of this process is resource intensive, as numerous iterations are required
Bradley Beeksma, Andrew Dipuglia, Joerg Lehmann   +2 more
wiley   +1 more source

High-resolution infrared molecular hydrogen images and optical images of Herbig-Haro object 43

, 1988
Richard D. Schwartz, D. G. Jennings, P. M. Williams, Martin Cohen   +3 more
openalex   +1 more source

UR‐cycleGAN: Denoising full‐body low‐dose PET images using cycle‐consistent Generative Adversarial Networks

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley   +1 more source

Optical image storage in ion implanted PLZT ceramics

, 1981
P. S. Peercy, C. E. Land
openalex   +2 more sources

Dosimetric evaluation and clinical application of collimated apertures with proton beam line scanning in stereotactic radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Stereotactic radiotherapy (SRT) is a highly effective treatment with precision for small, localized lesions. Proton therapy, characterized by the Bragg peak, offers superior dose conformity compared to photon‐based approaches. However, challenges remain in minimizing lateral penumbra and optimizing dose delivery, particularly for small
Chen‐Yu Chou, Hsiao‐Chieh Huang, Shen‐Hao Lee, Shih‐Ming Hsu   +3 more
wiley   +1 more source

Optical Imaging of Cilia in the Head and Neck. [PDF]

J Clin Med
Lee E, Chou L, Chen Z, Wong BJF.
europepmc   +1 more source