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  2. Dual-energy X-ray absorptiometry - Wikipedia

    en.wikipedia.org/wiki/Dual-energy_X-ray...

    DXA scans can also be used to measure total body composition and fat content with a high degree of accuracy comparable to hydrostatic weighing with a few important caveats. [18] [specify] From the DXA scans, a low resolution "fat shadow" image can also be generated, which gives an overall impression of fat distribution throughout the body. [19]

  3. Quantitative computed tomography - Wikipedia

    en.wikipedia.org/wiki/Quantitative_computed...

    At the hip, a DXA-equivalent T-score may be calculated for comparison to the WHO classification at the proximal femur as normal, osteopenia (T-Score < -1.0 and > -2.5) or osteoporosis (T-Score < -2.5). [17] This T-Score may also be used for fracture risk probability calculation in the WHO FRAX tool [18] with "T-Score" as the appropriate DXA ...

  4. Current Procedural Terminology - Wikipedia

    en.wikipedia.org/wiki/Current_Procedural_Terminology

    The CPT code revisions in 2013 were part of a periodic five-year review of codes. Some psychotherapy codes changed numbers, for example 90806 changed to 90834 for individual psychotherapy of a similar duration. Add-on codes were created for the complexity of communication about procedures.

  5. Osteopenia - Wikipedia

    en.wikipedia.org/wiki/Osteopenia

    Information from the DXA scanner creates a bone mineral density T-score by comparing a patient's density to the bone density of a healthy young person. Bone density between 1 and 2.5 standard deviations below the reference, or a T-score between −1.0 and −2.5, indicates osteopenia (a T-score smaller than or equal to −2.5 indicates ...

  6. Bone scintigraphy - Wikipedia

    en.wikipedia.org/wiki/Bone_scintigraphy

    A bone scan or bone scintigraphy / s ɪ n ˈ t ɪ ɡ r ə f i / is a nuclear medicine imaging technique used to help diagnose and assess different bone diseases. These include cancer of the bone or metastasis , location of bone inflammation and fractures (that may not be visible in traditional X-ray images ), and bone infection (osteomyelitis).

  7. Maximum intensity projection - Wikipedia

    en.wikipedia.org/wiki/Maximum_intensity_projection

    SPECT visualized by a MIP of a mouse Types of presentations of CT scans: - Average intensity projection - Maximum intensity projection - Thin slice (median plane)- Volume rendering by high and low threshold for radiodensity.

  8. Medical imaging - Wikipedia

    en.wikipedia.org/wiki/Medical_imaging

    X-ray computed tomography (CT), or Computed Axial Tomography (CAT) scan, is a helical tomography technique (latest generation), which traditionally produces a 2D image of the structures in a thin section of the body. In CT, a beam of X-rays spins around an object being examined and is picked up by sensitive radiation detectors after having ...

  9. Dual X-ray absorptiometry and laser - Wikipedia

    en.wikipedia.org/wiki/Dual_X-ray_absorptiometry...

    The standard in bone mineral density scanning developed in the 1980s is called Dual X-ray Absorptiometry, known as DXA. The DXA technique uses two different x-ray energy levels to estimate bone density. DXA scans assume a constant relationship between the amounts of lean soft tissue and adipose tissue.