title: A technique for radiographic cannulation and opacification of anatomical structures with small orifices--a new method.
abstract: A technique for the injection of contrast material into structures with small orifices which cannot be catheterized in the usual manner is described and illustrated. A small occlusion balloon catheter (Medi-Tech, Watertown, MA) allows for orifice cannulation and occlusion for retrograde contrast examination.
mesh_terms: D002404:Catheterization / Q000295:instrumentation*; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007223:Infant; D014567:Urography / Q000379:methods*
chemical_list: D003287:Contrast Media