Normal Anterior-Posterior (AP) Lumbar Spine Scan from a GE iDXA Densitometer
Image of a normal anterior-posterior (AP) lumbar spine scan
Densitometry BMD table from a normal anterior-posterior (AP) lumbar spine scan
Case Description:
Normal AP lumbar spine scan in a 44-year-old healthy caucasian woman using a GE iDXA densitometer.
Densitometry criteria:
• Correct scan mode used: thin mode (< 13 cm), standard mode (13-25 cm), thick mode (> 25 cm)
• AP spine alignment reasonably straight (angle threshold 15 degrees)
• Optimal contrast and brightness set
• ROIs properly defined and adjusted by the operator
• L1-L4 labeled corectly
• Tissue region properly defined (scan start and end threshold 50 mm)
• Bone edges properly defined (point typing has been adjusted by operator)
• Results consistent with previous scan (bone area threshold 10%)
• Analysis free of artifact and unusual high bone mineral density (detection sensitivity 5.0)
• Free of unusual T-score variation (adjacent T-score threshold 1.0)
• Free of unusual curvature (Cobb angle threshold 10 degrees)
Credit:
Chris Cinigliaro, Ph.D.
Investigator, Spinal Cord Injury Research Service
James J. Peters VA Medical Center