X-ray cone-beam computed tomography
Cone beam computed tomography for the assessment of linear scleroderma of the face
... conical X-ray emission, the definition and re- producibility of the scan images result to be low for the forehead area, making it inaccurate for comparing mea- sures ...
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Measurement of skin dose from cone-beam computed tomography imaging
... Although there is a wide variation in our results for the skin dose due to different scanning protocols, one cannot claim the superiority of one scanner over another solely based on the reported dose information. Each ...
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Accuracy Comparison of 4D Computed Tomography (4DCT) and 4D Cone Beam Computed Tomography (4DCBCT)
... Reference images were acquired of the phantom under static conditions for both CT and CBCT studies. A helical CT scan was acquired using a GE LightSpeed RT16 CT scanner (GE Healthcare, Waukesha, WI). Scan parameters were ...
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Comparison of Tissue Density in Hounsfield Units in Computed Tomography and Cone Beam Computed Tomography
... variables) between the values in CBCT and CT, and indicated that the CBCT values were generally higher. In our study, the provided values by CBCT were higher than the CT values in one of the systems (NewTom VG 3D), which ...
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Capture the beauty – looking in to the world of cone beam computed tomography
... Computed tomography can be divided into 2 categories based on acquisition x- ray beam geometry; namely: fan beam and cone ...(Rajasekaran Cone, 2014) In ...
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Cone beam computed tomography imaging of periodontal bone
... Scanning with the NewTom QR-DVT 9000 involves a single rotation of the x- ray source through 360 degrees to generate a scan of the entire head in the shape of a cone. This produces 360 basis images ...
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Cone Beam Computed Tomography: A Third Eye for Dental Practitioners
... 1) X-ray beam limitation providing multiple Fields of vision (FOV), 2) Isotropic voxels with sub-milimeter resolution providing more accurate images, 3) Rapid scan time, 4) Reduced radiation doses, ...
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Diagnostic value of cone beam computed tomography for recognition of oblique root fractures: An in vitro study
... central ray of the X-ray beam, despite taking images at different an- gles (3 or more projections), does not always pass through the fracture fissure running obliquely to the long axis of the ...
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Cone Beam Computed Tomography as an Aid in Oral and Maxillofacial Surgery
... plain X-ray projections and panoramic radiography can be adequate in a number of clinical situations ...computerized tomography (CT) and Magnetic resonance imaging (MRI) have been widely used for ...
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How North Carolina dentists use cone beam computed tomography
... machines. The non-OMFRs disagreed with the OMFRs regarding the importance of high contrast resolution and FOV adjustment since only three (21%) of the non- OMFRs stated that high contrast resolution and capability for ...
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Application of Cone Beam Computed Tomography in Endodontics: A Review Article
... In CBCT, the X ray beam is cone-shaped and di- vergent. A detector turns around the patient (area of interest) and cylindrical data (field of view or FOV) are obtained [7]. A FOV has millions ...
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Effect of Exposure Parameters on Metal Artifacts in Cone Beam Computed Tomography
... polychromatic X-ray beam passes through an object, low energy photons are absorbed more than high energy ...mean X- ray beam energy and beam hardening. Less X- ...
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Cone Beam Computed Tomography Findings in Calcifying Cystic Odontogenic Tumor Associated with Odontome: A Case Report
... the computed tomography (CT) examinations of these lesions emphasizing its benefits over the plain film radiography to demonstrate the cystic lining of the tu- mor, along with the internal ...a cone- ...
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Cone Beam Imaging Why all the Fuss about the X-ray Dose? D.A. Miles BA, DDS, MS, FRCD(C) Dip. ABOM, Dip. ABOMR. Introduction
... (cone beam computed tomography – which it is not) or CBVT (cone beam volumetric tomography – also not exactly precise) or CBVI (cone beam volumetric imaging ...
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The application of cone beam computed tomography in orthodontics
... The recent advances in dentistry have noted to prove very advantageous in comparison to the conventional techniques such as radiographs. One such advancement is Cone Beam Computed Tomography ...
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A Geant4-based Monte Carlo study of a benchtop multi-pinhole X-ray fluorescence computed tomography imaging
... incident beam axis and 10 cm away from the ...a cone-shaped profile with an acceptance angle of 110 ° , which was selected to cover the object; its center-to-center distance was ...
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Digital evaluation of nasal changes induced by rapid maxillary expansion with different anchorage and appliance design
... different x-rays techniques was calculated a priori by comparing the measurements on the x-rays to the measurements on plaster models of the same ...two x-ray technique was then considered not ...
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An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography
... or computed tomography (CT) remain the only means of assessing continuity of the bony lining of the fossa, and the abnormal presence of ruptures and fissures in the bony cavity of the ...multi-detector ...
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Evaluation of Infraorbital Canal in Cone Beam Computed Tomography of Maxillary Sinus
... Nowadays, cone beam computed tomography (CBCT) imaging is an accepted modality for radio- graphic evaluation of paranasal sinuses and related structures such as IOC and IOF because of low ...
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Preoperative CT versus intraoperative hybrid DynaCT imaging for localization of small pulmonary nodules: a randomized controlled trial
... preoperative computed tomography (POCT) imaging-guided tumor marking (performed in an interventional CT suite) followed by their removal in an operating room ...intraoperative computed ...
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