Gastroenterology Research and Practice / 2013 / Article / Tab 1

Review Article

Enterovesical Fistulae: Aetiology, Imaging, and Management

Table 1

Advantages and disadvantages of diagnostic tests and procedures used for the detection of enterovesical fistulae.

ModalityAdvantagesDisadvantages

CystoscopyDirect visualisation of the bladder
Allows for the biopsy of a lesion
Invasive test
Visualises only intraluminal content
Success rate of 35%–46%

ColonoscopyHelps to identify bowel pathology that caused a colovesical fistulaInvasive test
Visualises only intraluminal content
Success rate of 8.5%–55%

Poppy seed testNoninvasive
Inexpensive
Convenient to perform
Accuracy of up to 100%
Does not provide information on fistula location and type

Transabdominal ultrasonographyNo X-ray exposure
Inexpensive and available
Success rate of up to 100%
Does not provide more detailed information regarding complexity of a fistula

Abdominopelvic CTModality of choice
Diagnostic accuracy between 30 and 100%
Provides information about the complexity of a fistula and the surrounding anatomical structures
X-ray exposure
Expensive
Often fails to identify fistulous tract

MRINo X-ray exposure
Helpful in complex cases
Success rate of up to 100%
Expensive
Limited availability

Barium enemaUseful in differentiating diverticular disease from colonic cancer
Low perforation rates (<1%)
X-ray exposure
Barium peritonitis
Visualises only intraluminal content
Detection rate of approximately 30%

Bourne testInexpensive
Detection rate for colovesical fistulae of up to 90%
Does not provide information on fistula location and type

CystogramEasy to perform
Available
X-ray exposure
Low detection rate
Does not provide information on fistula location
Not helpful in case of a complex fistula

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