title: New catheter for retrograde left heart catheterization in aortic stenosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001024:Aortic Valve Stenosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006328:Cardiac Catheterization / Q000295:instrumentation*; D006801:Humans; D008875:Middle Aged; D011859:Radiography