[Preoperative and postoperative angiography in portal hypertension].
D006801:Humans; D006975:Hypertension, Portal / Q000000981:diagnostic imaging* / Q000601:surgery; D008638:Mesenteric Arteries / Q000000981:diagnostic imaging; D011168:Portal System / Q000000981:diagnostic imaging; D011182:Postoperative Care; D011300:Preoperative Care; D011859:Radiography