2017 WSES guidelines on colon and rectal cancer emergencies: obstruction and perforation

Table 3 Comparison of imaging studies for confirmation and site of perforation

	Confirmation of perforation		Site of perforation
	Sensitivity	Specificity	Sensitivity	Specificity
Abdominal plain X-ray	53% [30]	53% [30]	NS	NS
Abdominal US	92% [30]	53% [30]	NS	NS
Colonic enema	NS	NS	NS	NS
CT scan	95% [29]	90% [29]	NS	90% [29]

ISSN: 1749-7922