Specific Anatomic RegionAbdomen
ApplicationR/O renal or ureteral calculi
AuthorElliot K. Fishman, MD
Reference SourceJHU protocol
Scanner UsedSiemens Somatom Sensation 16
KV / Effective mAs / Rotation time (sec)120 / 200 / 0.5
Detector Collimation (mm)1.5
Slice Thickness (mm)2 or 3
Feed / Rotation (mm)24.0
KernelB30f
Increment (mm)2 or 1
Image Ordercr-ca
Oral Contrastnoncontrast study
IV Contrast Volume and Typenone
Injection RateN/A
Scan Delay (sec)N/A
3D Technique UsedOn select occasions MPR and VRT may be helpful
Comment:
This is the classic noncontrast axial study although in select cases reconstructions may help to localize the stone. Depending on the CT findings a contrast study may be indicated.