Vascular

Intracranial vessels: Suspected aneurysm

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

• The key to evaluation of intracranial aneurysms is narrow collimation. 2mm is needed.
• 3D imaging is very helpful in these patients.