نتایج جستجو برای: dimensional tomography
تعداد نتایج: 569408 فیلتر نتایج به سال:
Background: This study describes the possibility of implementing three-dimensional printing technology to create a precise construction of a planned bolus, based on computed tomography information stored in the Digital Imaging and Communications in Medicine (DICOM) format file. Materials and Methods: To create the bolus with a 3D printer, we converted data in the DICOM format to the s...
Treatment decision for coronary artery disease (CAD) is based on both morphological and functional information. Image fusion of coronary computed tomography angiography (CCTA) and three-dimensional echocardiography (3DE) could combine morphology and function into a single image to facilitate diagnosis. Three semiautomatic feature-based methods for CCTA/3DE registration were implemented and appl...
BACKGROUND AND PURPOSE Studies have looked at the accuracy of radiologic interpretations by radiology residents as compared with staff radiologists with regard to emergency room plain films, emergency room body CT scans, and trauma head CT scans; however, to our knowledge, no study has evaluated on-call resident interpretations of all types of neuroradiologic CT scans. Both as a part of our dep...
To report on a novel technique for providing artifact-free quantitative four-dimensional computed tomography (4DCT) image datasets for breathing motion modeling. Commercial clinical 4DCT methods have difficulty managing irregular breathing. The resulting images contain motion-induced artifacts that can distort structures and inaccurately characterize breathing motion. We have developed a novel ...
OBJECTIVE The study goal was to determine whether clinical symptoms, physical findings, or laboratory values predict the usefulness of abdominal computed tomography (CT) scans in children. METHODS We conducted a retrospective review of pediatric patients who received an abdominal CT scan between June 2009 and November 2011 at an urban medical center. A panel of pediatric hospitalists independ...
Abstract The insufficient number of low-elevation observations is a limitation the three-dimensional ionospheric computer tomography (CT) based on global navigation satellite system (GNSS). To solve this problem, accurate prior information regional ionosphere must be obtained. However, it difficult to explicitly and accurately express information. This study uses compressed sensing (CS) for fir...
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