Specific Anatomic Region	Intracranial Vessels
Application	Suspected aneurysm
Author	Schwartz RB et al.
Reference Source	Radiology 1994; 192; 717-722
Scanner Used	Siemens Somatom Plus-S
Injection Rate	2.5ml/sec
Contrast Volume and Type	75ml of Hypaque-60 or Omnipaque-240
Area Scanned	From base of sella turcica to top of brain
Scan Delay	20sec
Length of Spiral (time)	32sec
Slice Thickness	2mm
Table Speed/Pitch	2mm/sec
Reconstruction Interval	1mm
3D Technique Used	MIP
Comment: The key to evaluation of intracranial aneurysms is narrow collimation. 2mm is needed. 3D imaging is very helpful in these patients.