Quantitative computed tomography
![Image of cortical and trabecular bone of the spine by Quantitative computed tomography. Only the central trabecular portion is measured](/Images/godic/202502/05/Image_of_trabecular_bone_of_the_spine_by_Quantitative_computed_tomography3807.jpg")
![Image of 3D volumetric QCT scan](/Images/godic/202502/05/Image_of_3D_volumetric_QCT_scan3807.jpg")
![Image of proximal femur bone projection](/Images/godic/202502/05/Image_of_proximal_femur_bone_projection3807.jpg")
Quantitative computed tomography (QCT) is a medical technique that measures bone mineral density (BMD) using a standard X-ray Computed Tomography (CT) scanner with a calibration standard to convert Hounsfield Units (HU) of the CT image to bone mineral density values. Quantitative CT scans are primarily used to evaluate bone mineral density at the lumbar spine and hip.