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