Results 11 to 20 of about 1,682,963 (197)
Utility of cone-beam CT imaging for the determination of feeding vessels during arterial embolization for massive hemoptysis [PDF]
Diagnostic and Interventional Radiology, 2018 PURPOSE:We aimed to evaluate the role of cone-beam computed tomography (CT) performed as an adjunct to angiography for the determination of feeding vessels responsible for bleeding during arterial embolization for massive hemoptysis.METHODS:In this ...
Guanghui He +3 more
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A Hybrid Approach to Reduce Cone-Beam Artifacts for a Circular Orbit Cone-Beam CT System
IEEE Access, 2018 In a cone-beam computed tomography (CT) system, the Feldkamp, Davis, and Kress (FDK) algorithm produces cone-beam artifacts due to insufficient object sampling in the missing cone region of frequency space.
Shinkook Choi, Jinsung Kim, Jongduk Baek
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3D Analytic Cone-Beam Reconstruction for Multiaxial CT Acquisitions [PDF]
International Journal of Biomedical Imaging, 2009 A conventional 3rd generation Computed Tomography (CT) system with a single circular source trajectory is limited in terms of longitudinal scan coverage since extending the scan coverage beyond 40 mm results in significant cone-beam artifacts.
Zhye Yin, Bruno De Man, Jed Pack
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Motion binning in cone-beam CT without a prior Model [PDF]
, 2010 Cone-beam CT (CBCT), used to reduce setup error in radiotherapy, takes a sequence of about 670 two-dimensional X-rays acquired in a circular arc around the patient over two minutes and reconstructs a three-dimensional volume from these projections ...
Petrie, Tracy
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Neural Deformable Cone Beam CT [PDF]
, 2023 In oral and maxillofacial cone beam computed tomography (CBCT), patient motion is frequently observed and, if not accounted for, can severely affect the usability of the acquired images.
Lukas Birklein +4 more
openaire +6 more sources
Quantification of geometric uncertainties in image guided radiotherapy [PDF]
, 2010 The aim of this thesis is to determine if the geometric uncertainties that are introduced into the image guided radiotherapy (IGRT) process by Cone Beam CT (CBCT) based IGRT equipment are sufficiently small that they do not pose a significant risk of ...
Sykes, Jonathan
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Effect of different intraradicular posts in the dimensions of root canal computed tomography images
Indian Journal of Dental Research, 2020 Objectives: To evaluate the effect of different intraradicular posts on the dimensions of computed tomography (CT) images in cone-beam and fan-beam equipment. Materials and Methods: A total of 15 root canals of bovine teeth were instrumented up to a file
Carolina C S. Vasconcelos +5 more
doaj +1 more source
Advances in Radiation Oncology, 2017 Purpose: To characterize the accuracy of noncoplanar image guided radiation therapy with the Varian Edge radiosurgery system for intracranial stereotactic radiosurgery (SRS) treatments by assessing the accuracy of kV/kV orthogonal pair registration with ...
Jasmine A. Oliver, PhD +4 more
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ASSESSMENT OF JUXTA-APICAL RADIOLUCENCY WITH CONE BEAM CT
European Annals of Dental Sciences, 2022 Aim: This study aimed to investigate the association of JAR with third molar status and mandibular canal and also describe its radiologic features through cone beam computed tomography (CBCT). Methods: CBCT images of 100 individuals (153 mandibular third
Sinem Coşkun
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Dental cone beam CT: An updated review [PDF]
Physica Medica, 2021 Cone beam computed tomography (CBCT) is a diverse 3D x-ray imaging technique that has gained significant popularity in dental radiology in the last two decades. CBCT overcomes the limitations of traditional two-dimensional dental imaging and enables accurate depiction of multiplanar details of maxillofacial bony structures and surrounding soft tissues.
Touko Kaasalainen +3 more
openaire +3 more sources