Specific Anatomic RegionAdrenal Glands
ApplicationR/O adrenal mass
AuthorFishman EK
Reference SourceEndocrinol Metab Clin NA, 2000 March;29(1)27-42.
Scanner UsedSiemens Somatom Plus-4
Injection RateIf contrast is used, then 2-3cc/sec
Contrast Volume and Type120cc of Omnipaque 350
Area ScannedFrom lower border of the diaphragm through mid kidneys (rough guidelines)
Scan Delay 30sec
Length of Spiral (time)20-30sec
Slice Thickness3mm
Table Speed/Pitch3mm/sec or a pitch of 1
Reconstruction Interval3mm (or less)
3D Technique UsedUsually not needed although MPR may be helpful with larger masses
If an adenoma is suspected or is a clinical possibility then noncontrast CTs are done in order to get accurate densitometry values. IV contrast can then be given in cases of suspected tumor or metastases. On noncontrast CT a Hounsfield measurement of 18 or less is consistent with an adenoma.