quantitative computed tomography


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quantitative computed tomography (QCT)

a type of computed tomography that calculates and displays bone density in three dimensions. QCT is used mainly for lumbar spine studies but can also be applied in hip and peripheral bone mineral evaluations.

quantitative computed tomography

A type of CT scan used to measure density of bone in the vertebrae or in the extremities (peripheral QCT), usually the wrist.

Cons
QCT is rarely used because it is expensive, results in higher radiation exposure, and is less accurate than DEXA, P-DEXA or DPA.

quantitative computed tomography

Abbreviation: QCT
A method for determining the bone mineral density of a three-dimensional bony specimen, e.g., in the vertebral bodies or the forearms. It is used in the diagnosis of osteopenia and osteoporosis.
See also: tomography
References in periodicals archive ?
Fracture threshold in the femur and tibia of people with spinal cord injury as determined by peripheral quantitative computed tomography.
Muscle and bone adaptations after treadmill training in incomplete Spinal Cord Injury: a case study using peripheral Quantitative Computed Tomography.
Abbreviations: ANOVA = analysis of variance, ASIA = American Spinal Injury Association, BMC = bone mineral content, BMI = body mass index, DEXA = dual-energy X-ray absorptiometry, DOP = duration of paralysis, FM = fat mass, LM = lean mass, NLOI = neurological level of injury, pQCT = peripheral quantitative computed tomography, SCI = spinal cord injury, SD = standard deviation, SNS = sympathetic nervous system, SSI = stress-strain index, [SSI.
Nasdaq NM Symbol: NRLD) announced today its has entered into an agreement with Eli Lilly and Company (NYSE: LLY) to apply Norland's peripheral Quantitative Computed Tomography technology (pQCT(TM)) to research of therapies against osteoporosis and other bone diseases.

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