The GPI Bone and Body Composition Laboratory is a 250 sq. ft room equipped with a dual-energy X-ray absorptiometer (DXA), a peripheral quantitative computed tomographer (pQCT), and a transient elastographer (Fibroscan®).
Model: Hologic Discovery-W (Serial# 84230)
Description: Dual-energy X-ray absorptiometry (DXA) uses small amounts of X-ray radiation at two different energies to provide very accurate assessments of bone health and body composition. Bone health assessments using DXA are considered the 'gold standard' for diagnosing osteoporosis.
Uses: DXA can measure:
Model: Stratex XCT 2000 pQCT (Serial# 2005)
Description: Peripheral quantitative computed tomography (pQCT) uses small amounts of X-ray radiation to take cross-sectional images of the arms and legs. These images are used to assess bone health and muscle size in the extremities. pQCT has advantages over DXA as it: (1) assesses bone in three dimensions allowing for true measures of density; (2) provides accurate measures of bone and muscle size, and; (3) separate bones into different compartments (cortical vs. trabecular).
Uses: pQCT can measure:
Model: Fibroscan® Echosens (Serial# F01033)
Description: Fibroscan® is a non-invasive method for mreasuring liver stiffness. Vibrations of mild amplitude and low frequency are transmitted from the vibrator to the tissues via the transducer, thereby inducing an elastic shear wave that propagates through the tissue. In the meantime, pulse-echo ultrasound acquisitions allow the propagation of the shear wave to be followed and its velocity to be measured, as these are directly related to tissue stiffness: the stiffer the tissue, the faster the shear wave is propagate.
Uses: Fibroscan® can assess: