Results 11 to 20 of about 1,779,765 (198)

Utility of cone-beam CT imaging for the determination of feeding vessels during arterial embolization for massive hemoptysis [PDF]

open access: yesDiagnostic 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
doaj   +2 more sources

3D Analytic Cone-Beam Reconstruction for Multiaxial CT Acquisitions [PDF]

open access: yesInternational 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
doaj   +2 more sources

A Hybrid Approach to Reduce Cone-Beam Artifacts for a Circular Orbit Cone-Beam CT System

open access: yesIEEE 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
doaj   +2 more sources

Direct aneurysm sac catheterization and embolization of an enlarging internal iliac aneurysm using cone-beam CT [PDF]

open access: yesDiagnostic and Interventional Radiology, 2015
Since cone-beam computed tomography (CT) has been adapted for use with a C-arm system it has brought volumetric CT capabilities in the interventional suite.
Monish Merchant   +2 more
doaj   +2 more sources

Motion binning in cone-beam CT without a prior Model [PDF]

open access: yes, 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
core   +6 more sources

Effect of different intraradicular posts in the dimensions of root canal computed tomography images

open access: yesIndian 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

Orthogonal image pairs coupled with OSMS for noncoplanar beam angle, intracranial, single-isocenter, SRS treatments with multiple targets on the Varian Edge radiosurgery system

open access: yesAdvances 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
doaj   +1 more source

ASSESSMENT OF JUXTA-APICAL RADIOLUCENCY WITH CONE BEAM CT

open access: yesEuropean 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
doaj   +1 more source

A case of Schistosoma japonicum retroperitoneal pseudotumor diagnosed by cone-beam CT-guided coaxial biopsy system

open access: yesActa Radiologica Open, 2022
We report a rare case of retroperitoneal pseudotumor caused by Schistosoma japonicum that was diagnosed by computed tomography (CT) guided percutaneous biopsy in a 15-year-old Filipino male.
Shu Matsushita   +6 more
doaj   +1 more source

An Ancient Mesiodens Investigated by Cone Beam CT

open access: yesApplied Sciences, 2021
This article presents the complex case study of an ancient skeleton presenting a maxillary supernumerary tooth (mesiodens). The skeleton was found in an archaeological site in the western part of Romania and was dated back to the Eneolithic period, some ...
Laura Maria Beschiu   +5 more
doaj   +1 more source

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