Ct is us- CT Protocols
Spiral CT Protocols

Bladder

Virtual cystoscopy to stage bladder cancer

Specific Anatomic Region

Bladder

Application

Virtual cystoscopy to stage bladder cancer/ follow up bladder cancer

Author

Fishman EK

Reference Source

Personal communication

Scanner Used

Siemens Somatom Plus-4

Injection Rate

No contrast

Contrast Volume and Type

No contrast

Area Scanned

Entire bladder

Scan Delay

None

Length of Spiral (time)

usually 20-25 sec

Slice Thickness

3mm

Table Speed/Pitch

3-5mm/sec

Reconstruction Interval

1-2mm

3D Technique Used

Volume rendering

Comment: Bladder distention can be done either with air or positive contrast via a foley catheter or by giving the patient a lot of water (i.e. like a pelvic u/s) to drink and waiting 30-45 minutes. To make up a solution of positive contrast add 30cc of Omnipaque-350 to a 500cc bag of saline.