Results 51 to 60 of about 1,682,963 (197)

An attenuation field network for dedicated cone beam breast CT with short scan and offset detector geometry

open access: yesScientific Reports
The feasibility of full-scan, offset-detector geometry cone-beam CT has been demonstrated for several clinical applications. For full-scan acquisition with offset-detector geometry, data redundancy from complementary views can be exploited during image ...
Zhiyang Fu   +2 more
doaj   +1 more source

Cardiac cone‐beam CT [PDF]

open access: yesMedical Physics, 2005
This doctoral thesis addresses imaging of the heart with retrospectively gated helical cone‐beam computed tomography (CT). A thorough review of the CT reconstruction literature is presented in combination with a historic overview of cardiac CT imaging and a brief introduction to other cardiac imaging modalities.
openaire   +1 more source

Acurácia da tomografia computadorizada de feixe cônico de campo reduzido e alta resolução na medição da espessura das paredes do canal radicular [PDF]

open access: yes, 2013
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.Dentes tratados endodonticamente normalmente apresentam grande perda de estrutura coronária necessitando frequentemente da colocação de retentores ...
Schulz, Thayrini
core  

Prospective Randomized Trial for Image-Guided Biopsy Using Cone-Beam CT Navigation Compared with Conventional CT [PDF]

open access: yes, 2016
PurposeTo compare cone-beam computed tomography (CT) navigation vs conventional CT image guidance during biopsies.Materials and methodsPatients scheduled for image-guided biopsies were prospectively and randomly assigned to conventional CT guidance vs ...
Jacobus, John   +7 more
core   +1 more source

Central Granular Cell Odontogenic Tumor: Report of a Case with CBCT Features.

open access: yesFrontiers in Dentistry, 2014
Central granular cell odontogenic tumor) CGCOT) of the jaw is an exceedingly rare benign odontogenic neoplasm with 35 reported cases in the literature. Among these, very few studies have focused on the cone-beam CT features of CGCOT.
Najmeh Anbiaee   +2 more
doaj  

Identification of dental root canals and their medial line from micro-CT and cone-beam CT records

open access: yesBioMedical Engineering OnLine, 2012
Background Shape of the dental root canal is highly patient specific. Automated identification methods of the medial line of dental root canals and the reproduction of their 3D shape can be beneficial for planning endodontic interventions as severely ...
Benyó Balázs
doaj   +1 more source

Tilted grating phase-contrast computed tomography using statistical iterative reconstruction

open access: yesScientific Reports, 2018
Grating-based phase-contrast computed tomography (GBPC-CT) enables increased soft tissue differentiation, but often suffers from streak artifacts when performing high-sensitivity GBPC-CT of biomedical samples.
Lorenz Birnbacher   +12 more
doaj   +1 more source

Incidental Cone Beam CT Finding of Juvenile Pleomorphic Adenoma

open access: yesCase Reports in Dentistry, 2020
Pleomorphic adenoma is a benign mixed tumor composed of epithelial and myoepithelial cells, less commonly occurring in minor salivary glands or in children.
Noura Alsufyani
doaj   +1 more source

Geometric Misalignment Calibration and Detector Lag Effect Artifact Correction in a Cone-Beam Flat Panel micro-CT System for Small Animal Imaging [PDF]

open access: yes, 2022
The cone-beam flat panel micro-CT is a high definition imaging system. The CT system is affected by several imperfections and problems, that might lead to serious artifacts that deteriorate the quality of the reconstructed image.
Di Sopra, Lorenzo
core  

The virtual human face – superimposing the simultaneously captured 3D photorealistic skin surface of the face on the untextured skin image of the CBCT Scan [PDF]

open access: yes, 2013
The aim of this study was to evaluate the impact of simultaneous capture of the three-dimensional (3D) surface of the face and cone beam computed tomography (CBCT) scan of the skull on the accuracy of their registration and superimposition.
Naudi, K   +12 more
core   +1 more source

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