high-resolution computed tomography


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high-res·o·lu·tion com·put·ed to·mog·ra·phy (HRCT),

computed tomography with narrow collimation to reduce volume-averaging and an edge-enhancing reconstruction algorithm to sharpen the image, sometimes with a restricted field of view to minimize the size of pixels in the region imaged; used particularly for lung imaging.

high-resolution computed tomography

Computed tomography which combines thin collimation (1.0 to 1.5 mm) and a high-spatial frequency algorithm, resulting in images which, in chest imaging, correlate well with the gross pathology specimens.

high-resolution computed tomography

Imaging CT at slice–collimation scan interval widths of ≤ 4 mm, which is narrower than the usual
1-3 cm interval 'slices' obtained in conventional CT imaging. Cf Spiral computed tomography.

high-res·o·lu·tion com·put·ed to·mog·ra·phy

(HRCT) (hī-rez'ŏ-lū'shŭn kŏm-pyū'tĕd tŏ-mog'ră-fē)
Computed tomography with narrow collimation to reduce volume-averaging and an edge-enhancing reconstruction algorithm to sharpen the image, sometimes with a restricted field of view to minimize the size of pixels in the region imaged; used particularly for lung imaging.
References in periodicals archive ?
Grenier et al27 assessed the diagnostic value of chest radiography and high-resolution computed tomography (CT) in chronic diffuse interstitial lung disease in 140 consecutive patients with diffuse infiltration of the lung visible at radiography.
Value of high-resolution computed tomography and magnetic resonance imaging in the detection of residual cholesteatomas in primary bony obliterated mastoids.
New to be supplied, high-resolution computed tomography for comprehensive interdisciplinary diagnostics on the highest technical level with particular emphasis on the examination of the heart, lungs, blood vessels and the musculoskeletal system.
High-resolution computed tomography (CT) revealed a dehiscent high jugular bulb attached to the tympanic membrane in the right ear (figure 2).
Today it was possible thanks to new technologies and digital methods such as ancient DNA and high-resolution computed tomography as well as radiocarbon dating," the team leader Stefano Benazzi, a physical anthropologist of the University of Bologna, told.
More recently, this has been described as [combined pulmonary fibrosis and emphysema, or CPFE syndrome], and it's largely with the advent of high-resolution computed tomography scanning that it has been appreciated how common fibrosis is in association with emphysema," said Dr.
High-resolution computed tomography findings are correlated with disease severity in asthma.
A blood test to monitor for levels of EMPs may offer an alternative to high-resolution computed tomography (HRCT), which is currently used to identify early-onset emphysema, with varying degrees of success.
He includes a significant amount of images of conventional and multi-planar high-resolution computed tomography of the temporal bone, tympanoplasty, mastoidectomy and stapes surgery, pointing out potential outcomes in temporal bone surgery.
Interpretation of high-resolution computed tomography (CT) scans of the lungs, such as those obtained in this case, is diagnostically challenging.
Evaluation of pulmonary changes due to biomass fuels using high-resolution computed tomography.
3) High-resolution computed tomography used in the prone and supine positions has been proposed as a technique for detecting ground glass opacities due to amiodarone pulmonary toxicity.

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