Results 151 to 160 of about 1,779,765 (198)
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Respiratory correlated cone beam CT
Medical Physics, 2005A cone beam computed tomography (CBCT) scanner integrated with a linear accelerator is a powerful tool for image guided radiotherapy. Respiratory motion, however, induces artifacts in CBCT, while the respiratory correlated procedures, developed to reduce motion artifacts in axial and helical CT are not suitable for such CBCT scanners. We have developed
Van Herk, Marcel; id_orcid 0000-0001-6448-898X +4 more
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CT thermometry for cone-beam CT guided ablation
SPIE Proceedings, 2016Monitoring temperature during a cone-beam CT (CBCT) guided ablation procedure is important for prevention of over-treatment and under-treatment. In order to accomplish ideal temperature monitoring, a thermometry map must be generated. Previously, this was attempted using CBCT scans of a pig shoulder undergoing ablation. 1 We are extending this work by
Zachary DeStefano +5 more
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Cone-Beam CT: Applications in Orthodontics
Dental Clinics of North America, 2008Radiographic images have always been an important part of orthodontic diagnosis and treatment planning. We have been limited by the two-dimensional nature of these radiographs as we pursue tooth movement in a three-dimensional fashion. This article shows the current and future uses and advantages of cone-beam CT in the practice of orthodontics. The use
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Cone-Beam CT: Vascular Applications
Techniques in Vascular and Interventional Radiology, 2013Cone-beam computed tomography (CBCT) provides three-dimensional rendering of opacified vascular structures that are very useful for catheter guidance and anatomical correlation in many arterial and venous procedures. CBCT has been shown to improve the technical success of transarterial chemoembolization (TACE), which may lead to better outcomes ...
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2018
Cone beam computed tomography is a form of tomographic imaging. It is a derivative of multidetector computed tomography. CBCT is a technology characterized by compromises. As a consequence, CBCT has limited capabilities, most notably the inability to differentiate soft tissue densities and meager computational capacities of the image-processing system.
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Cone beam computed tomography is a form of tomographic imaging. It is a derivative of multidetector computed tomography. CBCT is a technology characterized by compromises. As a consequence, CBCT has limited capabilities, most notably the inability to differentiate soft tissue densities and meager computational capacities of the image-processing system.
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Cone beam CT in diagnostics of facial trauma
Stomatologiya, 2016The article provides a review of domestic and international scientific literature to reveal the possibilities of cone-beam computed tomography in facial trauma diagnostics. The ratio of maxillofacial trauma continues to grow progressively. The current situation increases the need for high-quality, fast and extremely informative radiology diagnosis for ...
O Yu, Pavlova, N S, Serova
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Image artifact in dental cone-beam CT
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2006The purpose of this study was to investigate the appearance and possible cause of an artifact seen in limited-volume cone-beam CT imaging.A water-filled plastic cylinder was used as a phantom of the head. A test object was constructed as a bone-equivalent phantom to be imaged.
Akitoshi, Katsumata +7 more
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Helical cone beam CT with an asymmetrical detector
Medical Physics, 2005If a multislice or other area detector is shifted to one side to cover a larger field of view, then the data are truncated on one side. We propose a method to restore the missing data in helical cone‐beam acquisitions that uses measured data on the longer side of the asymmetric detector array.
Alexander A, Zamyatin +2 more
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Cone-Beam CT in diagnosis of scaphoid fractures
Skeletal Radiology, 2015This prospective study investigated the sensitivity of cone beam computed tomography (CBCT), a low dose technique recently made available for extremity examinations, in detecting scaphoid fractures. Magnetic resonance imaging (MRI) was used as gold standard for scaphoid fractures.A total of 95 patients with a clinically suspected scaphoid fracture were
Rolf, Edlund +3 more
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2015
So far, this book has focused on the detector configuration in which a single row of a detector is irradiated by the x-ray beam. Although helical (spiral) CT has significantly improved volume coverage, many clinical applications demand an even greater volume coverage and thinner slices. A good example is CT angiography.
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So far, this book has focused on the detector configuration in which a single row of a detector is irradiated by the x-ray beam. Although helical (spiral) CT has significantly improved volume coverage, many clinical applications demand an even greater volume coverage and thinner slices. A good example is CT angiography.
openaire +1 more source