Results 281 to 290 of about 177,511 (317)
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ScatterNet: A convolutional neural network for cone‐beam CT intensity correction
Medical Physics (Lancaster), 2018PURPOSE To demonstrate a proof-of-concept for fast cone-beam CT (CBCT) intensity correction in projection space by the use of deep learning. METHODS The CBCT scans and corresponding projections were acquired from 30 prostate cancer patients.
D. Hansen +6 more
semanticscholar +1 more source
Deformable motion compensation for interventional cone-beam CT
Physics in Medicine and Biology, 2020Image-guided therapies in the abdomen and pelvis are often hindered by motion artifacts in cone-beam CT (CBCT) arising from complex, non-periodic, deformable organ motion during long scan times (5–30 s).
S. Capostagno +5 more
semanticscholar +1 more source
Physica Medica, 2015
For the maxillofacial region, there are various indications that cannot be interpreted from 2D images and will benefit from multiplanar viewing. Dental cone beam CT (CBCT) utilises a cone- or pyramid-shaped X-ray beam using mostly flat-panel detectors for 3D image reconstruction with high spatial resolution. The vast increase in availability and amount
Timo, Kiljunen +3 more
openaire +2 more sources
For the maxillofacial region, there are various indications that cannot be interpreted from 2D images and will benefit from multiplanar viewing. Dental cone beam CT (CBCT) utilises a cone- or pyramid-shaped X-ray beam using mostly flat-panel detectors for 3D image reconstruction with high spatial resolution. The vast increase in availability and amount
Timo, Kiljunen +3 more
openaire +2 more sources
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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Radiology, 2019
Purpose To evaluate the safety and efficacy of palliative treatment of patients with pathologic pelvic by using fluoroscopy and cone-beam CT needle guidance software to perform percutaneous fixation by internal cemented screw (FICS).
Charles Roux +8 more
semanticscholar +1 more source
Purpose To evaluate the safety and efficacy of palliative treatment of patients with pathologic pelvic by using fluoroscopy and cone-beam CT needle guidance software to perform percutaneous fixation by internal cemented screw (FICS).
Charles Roux +8 more
semanticscholar +1 more source
Towards cone-beam CT thermometry
SPIE Proceedings, 2013Temperature monitoring and therefore the final treatment zone achieved during a cone-beam CT (CBCT) guided ablation can prevent overtreatment and undertreatment. A novel method is proposed to detect changes in consecutive CBCT images obtained from projection reconstructions during an ablation procedure.
Ming Li +8 more
openaire +1 more source
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.
openaire +1 more source
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.
openaire +1 more source
AJR. American journal of roentgenology, 2019
OBJECTIVE. The purpose of this study was to assess the result of adding cone-beam CT to the standard imaging algorithm for patients with suspected radiographically occult traumatic radiocarpal fractures. SUBJECTS AND METHODS.
B. Gibney +5 more
semanticscholar +1 more source
OBJECTIVE. The purpose of this study was to assess the result of adding cone-beam CT to the standard imaging algorithm for patients with suspected radiographically occult traumatic radiocarpal fractures. SUBJECTS AND METHODS.
B. Gibney +5 more
semanticscholar +1 more source
A phantom for testing Cone Beam CTs
Physical and Engineering Sciences in Medicine, 2020Cone Beam Computed Tomography (CBCT) scanners are becoming more common for dental and maxillofacial/head scanning, but performing image quality tests on these systems is difficult. There are quality assurance (QA) phantoms commercially available but they can be expensive, bulky and not optimised for CBCT imaging limits.
Steven Muir, Johnny Laban
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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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