Specific Anatomic RegionLumbar spine
ApplicationEvaluate suspected fracture
AuthorFishman EK
Reference SourcePersonal Communication
Scanner UsedSiemens Plus4 Volume Zoom
KV / mAs / Time per Rotation (sec)140/300/1 or 120 / 200 / .5
Detector Collimation (mm)2.5 or 1
Slice Thickness (mm)3 or 1.25
Data Reconstruction Interval (mm)2 or 1
Table Speed (mm per rotation) / Pitch10/4 or 6 / 6
Oral ContrastN/A
IV Contrast Volume and TypeN/A
Injection RateN/A
Scan Delay (sec)N/A
3D Technique UsedN/A
  • This provides high spatial resolution at the cost of increased dose. For 3D rendering, maps at a standard abdomen profile (12- Kvp, 165 mAs) are usually good enough.
  • I have also used 1 mm collimation for 3D imaging.