Gastrointestinal ❯ Colovesical Fistulae Colon
CT Protocol for Colovesical Fistulae Colon
Problem | Rule out a fistulae between the bladder and the colon (colovesical fistulae) |
Protocol | The key is to use either rectal contrast (30cc iodixanol-350 in 500 cc of saline) or drip contrast in the bladder (30cc iodixanol-350 in 500 cc of saline) under gravity. Although either technique works the rectal contrast is usually more successful. We scan from the level above the crests till beneath the bladder. We obtain non contrast scans, scans with rectal or bladder contrast administered and scans after drainage of the colon or bladder. Images are reviewed with axial, coronal and select sagittal views. |
Pearls |
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