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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 5 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 5

From: Direct hydrogen peroxide MRI fistulography versus indirect (intravenous) MRI fistulography in patients with perianal fistula

Fig. 5

A Axial T2 Fat sat sequence, B axial, D IV CE T1 FS (indirect fistulography), C T1 FS direct fistulography, show a prominent vessel (arrow) that is hyperintense in T2WI and shows contrast enhancement at indirect fistulography images B, D, which could be misinterpreted as a secondary branch, however, it shows no contrast delineation in the direct fistulography (C)

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