نتایج جستجو برای: ray ct

تعداد نتایج: 397780  

2016

For complicated structural components with wide x-ray attenuation ranges, conventional fixed-energy computed tomography (CT) imaging cannot obtain all the structural information. This limitation results in a shortage of CT information because the effective thickness of the components along the direction of x-ray penetration exceeds the limit of the dynamic range of the x-ray imaging system. To ...

Background: The accuracy of reduction of ankle fractures using postoperative plain radiographies (x-ray) remainswidely controversial. Some authors have demonstrated that postoperative computed tomography (CT) scan can beuseful for these patients. In current study, the efficacy of x-rays after fixation of ankle fractures was investigated basedon the CT scan findings.Metho...

2014
Donghwan Kim Laura K. Balzano Marina A. Epelman

ACCELERATED OPTIMIZATION ALGORITHMS FOR STATISTICAL 3D X-RAY COMPUTED TOMOGRAPHY IMAGE RECONSTRUCTION by Donghwan Kim Chair: Jeffrey A. Fessler X-ray computed tomography (CT) has been widely celebrated for its ability to visualize the anatomical information of patients, but has been criticized for high radiation exposure. Statistical image reconstruction algorithms in X-ray CT can provide impro...

Journal: :Journal of the Japan Society for Precision Engineering 2020

Journal: :Japanese Journal of Radiological Technology 1990

Journal: :The Review of Laser Engineering 1982

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