Table 1.

Rectal endosonography (EUS) and MRI in the imaging of perianal fistulas

	EUS	MRI
Simple fistulas	+++	+++
Complex fistulas	++	+++
High tracks/abscesses	++	+++
Internal opening	+++	++
Standard equipment	+	+++
Costs	++(+)	+
Availability	−/+++	++
Comparison results	++	+++