Results 1 to 10 of about 533,021 (321)

Impact of acceleration treatment on treatment plan and delivery qualities in tomotherapy for lung cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Acceleration treatment (AT) is a novel treatment planning parameter introduced in the tomotherapy‐dedicated treatment planning system, Precision. This study explores the effects of AT on tomotherapy plans using helical (TomoHelical) and direct (TomoDirect) irradiation techniques.
Ryosuke Shirata, Tatsuya Inoue, Yugo Ebinuma, Akihiro Yamano, Takayuki Yagihashi, Hironori Nagata, Yumiko Minagawa, Yuki Mukai, Akiko Sato, Motoko Omura   +9 more
wiley   +1 more source

Exploring surface‐guided systems for intelligent breathing‐adapted four‐dimensional computed tomography: A comparison to infrared‐based reflective marker systems

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the technical feasibility of adapting a surface monitoring system, designed for conventional four‐dimensional computed tomography (4DCT), to an intelligent, breathing‐adapted 4DCT and examines its potential to expand the currently limited range of supported surrogate systems.
Niklas Lackner, Andre Karius, Rainer Fietkau, Christoph Bert, Juliane Szkitsak   +4 more
wiley   +1 more source

Sparse View CT Reconstruction Algorithm Based on Non-Local Generalized Total Variation Regularization

CT Lilun yu yingyong yanjiu
CT image reconstruction algorithm based on generalized total variation (TGV) can overcome the staircase effect of total variation (TV) regularization, thereby protecting the structural features of the reconstructed image transition region.
Min JIANG, Hongwei TAO, Kai CHENG
doaj   +1 more source

Cascaded reconstruction network for compressive image sensing

EURASIP Journal on Image and Video Processing, 2018
The theory of compressed sensing (CS) has been successfully applied to image compression in the past few years, whose traditional iterative reconstruction algorithm is time-consuming.
Yahan Wang, Huihui Bai, Lijun Zhao, Yao Zhao   +3 more
doaj   +1 more source

Assessing the rigidity of thermoplastic masks for head immobilization effectiveness in stereotactic radiosurgery

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study compared three Brainlab thermoplastic masks—Cranial 4pi basic, stereotactic (Close Mask V2), and open‐face—to see how well they limited head movement during Stereotactic Radiosurgery (SRS). Using a head phantom, we tested rotational movements (pitch, yaw, and roll) and measured displacements with the ExacTrac system.
Iris Pasion Apale, Adam Agnew, Daniel Foley   +2 more
wiley   +1 more source

X-GANs: Image Reconstruction Made Easy for Extreme Cases [PDF]

arXiv, 2018
Image reconstruction including image restoration and denoising is a challenging problem in the field of image computing. We present a new method, called X-GANs, for reconstruction of arbitrary corrupted resource based on a variant of conditional generative adversarial networks (conditional GANs).
arxiv  

RECONSTRUCTION OF THE IMAGES OF TRANSPARENCIES WITH A SEMICONDUCTOR LASER [PDF]

, 1972
В Н Морозов
openalex   +1 more source

Characterization of a prototype rapid kilovoltage x‐ray image guidance system designed for a linear accelerator radiation therapy unit

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates a novel cone‐beam computed tomography (CBCT) imaging solution integrated onto a conventional C‐arm linear accelerator (linac) with increased gantry speed. The purpose is to assess the impact of improved imaging hardware and reconstruction algorithms on image quality.
Theodore Arsenault, Jonathan Arrue, Kenneth Gregg, Atallah Baydoun, Atefeh Rezai, Christian Langmack, Lauren Henke, Daniel E. Spratt, Rojano Kashani, Alex Price   +9 more
wiley   +1 more source

Human papillomavirus (HPV) prediction for oropharyngeal cancer based on CT by using off‐the‐shelf features: A dual‐dataset study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background This study aims to develop a novel predictive model for determining human papillomavirus (HPV) presence in oropharyngeal cancer using computed tomography (CT). Current image‐based HPV prediction methods are hindered by high computational demands or suboptimal performance.
Junhua Chen, Yanyan Cheng, Lijun Chen, Banghua Yang   +3 more
wiley   +1 more source

Fast reconstruction of SMS bSSFP myocardial perfusion images using noise map estimation network (NoiseMapNet): a head-to-head comparison with parallel imaging and iterative reconstruction

Frontiers in Cardiovascular Medicine
BackgroundSimultaneous multi-slice (SMS) bSSFP imaging enables stress myocardial perfusion imaging with high spatial resolution and increased spatial coverage.
Naledi Lenah Adam, Grzegorz Kowalik, Andrew Tyler, Ronald Mooiweer, Ronald Mooiweer, Alexander Paul Neofytou, Sarah McElroy, Sarah McElroy, Karl Kunze, Karl Kunze, Peter Speier, Daniel Stäb, Radhouene Neji, Radhouene Neji, Muhummad Sohaib Nazir, Muhummad Sohaib Nazir, Reza Razavi, Amedeo Chiribiri, Sébastien Roujol   +18 more
doaj   +1 more source