Evaluation of Superselective Transcatheter Arterial Embolization with n-Butyl Cyanoacrylate in Treating Lower Gastrointestinal Bleeding: A Retrospective Study on Seven Cases

Figure 1

The radiography in the patient (Case ) with lower gastrointestinal bleeding and angiodysplasia of sigmoid colon. (a) The preoperative radiography shows vascular malformation of sigmoid colon (as showed by the arrow). (b) The superselective radiography was used to evaluate the dose and velocity of the embolization agents. (c) It shows the deformed vascular mass (as showed by the arrow). (d) The postoperative radiography (without digital subtraction) showed that the abnormal sign disappeared.

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