MEDRADSC 3DA3 Chapter Notes - Chapter 13: Acromioclavicular Joint, Soft Tissue, Modified Discrete Cosine Transform

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 3DA3
• Professor: Lyndsay Simmons

Document Summary

Providing specific info about bone & other mineralized tissue. Evaluating joints (esp. after air or iodinated contrast is injected into joint spaces) Ability to image both sides of the body to permit comparison (ie symmetry of joints) Ability to display bone & soft tissue components simultaneously. Ability to perform multiplanar & 3d reformation retrospectively: display of cross-sectional anatomy & spatial relationships. Acquisition of slices as thin as 0. 5mm resulting in isotropic voxels. Allows extensive anatomic coverage, which is necessary in the evaluation of patients with msk trauma. Scans of the skeleton can be combined with other ct studies (ie cta, ct cystography) Techniques are tailored to each patient & roi. Positioning is critical - patient should be positioned carefully so that both sides are symmetric as possible. Lower extremities usually scanned with patient supine & feet first in scanner. Upper extremities usually scanned with patient supine & head first in scanner.