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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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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: 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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Correction of scatter in megavoltage cone-beam CT
Physics in Medicine and Biology, 2001The role of scatter in a cone-beam computed tomography system using the therapeutic beam of a medical linear accelerator and a commercial electronic portal imaging device (EPID) is investigated. A scatter correction method is presented which is based on a superposition of Monte Carlo generated scatter kernels.
L, Spies +4 more
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Exact cone beam CT with a spiral scan
Physics in Medicine and Biology, 1998A method is developed which makes it possible to scan and reconstruct an object with cone beam x-rays in a spiral scan path with area detectors much shorter than the length of the object. The method is mathematically exact. If only a region of interest of the object is to be imaged, a top circle scan at the top level of the region of interest and a ...
K C, Tam, S, Samarasekera, F, Sauer
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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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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.
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2019
Cone-beam CT (CBCT) systems have emerged in a broad variety of forms and clinical applications. The diversity of platforms includes open-gantry C-arms and U-arms as well as closed-gantry rings. Applications span a spectrum of image-guided interventions (e.g., image-guided radiotherapy, surgery, and interventional radiology) and specialty diagnostic ...
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Cone-beam CT (CBCT) systems have emerged in a broad variety of forms and clinical applications. The diversity of platforms includes open-gantry C-arms and U-arms as well as closed-gantry rings. Applications span a spectrum of image-guided interventions (e.g., image-guided radiotherapy, surgery, and interventional radiology) and specialty diagnostic ...
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Application of Cone-beam CT in the Office Setting
Dental Clinics of North America, 2008The decision to incorporate cone-beam CT (CBCT) into a dental practice is one that requires serious consideration and careful planning. In the early days of the technology, fewer sources of information existed and a community of users often shared ideas and prompted the advancement of the products.
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