hasbeen wellestablished (Steiner, Sherlock, andTurner, 1957). Thediagnostic usefulness ofhepatic venography iscurrently being evaluated atthis institution. Thisprocedure hasbeenshowntodefine diagnostic abnormalities inthepresence ofcirrhosis ortumour inthehumanliver (Schlant, Galambos, Shuford, Rawls, Winter, andEdwards, 1963). Thehepatic artery hasbeenvisualized bothbydirect needle puncture during laparotomy andalso byretrograde catheterization (Farinas, 1946). Odman(1958, 1959) hasshownthat selective catheterization ofthecoeliac artery allowed thevisualization notonlyofthe hepatic arterial system butalsothatofthespleen, stomach, andofthepancreas. Selective abdominal angiography recently became thesubject ofstudies inseveral institutions (Boijsen, Ekman,andOlin,1963;Acker, Galambos, and Weens,1964;andGlenn, Evans,Halpern, and Thorbjarnarson, 1964). A preliminary report from thisinstitution wasbasedon19patients andit described sixtypesofcasesinwhichselective coeliac arteriography was of diagnostic value (Acker etal., 1964). Selective abdominal angiography inthestudyofvascular diseases ofthe abdominal viscera wasrecently reviewed (Galambos, 1965). Thepresent report describes thediagnostic valueandthedangers ofselective abdominal angiography in44studies, and25patients not previously described arereported. TECHNIQUE The patients werepremedicated withhydroxyzihe pamoate (Vistaril), 50mg.intramuscularly, andmeperi'Present address: Vijfstrassen, 162SintNiklaas, Waas,Belgium. dine(Demerol), 75mg.intravenously, just before the procedure. Localanaesthesia wasusedafter routine skinpreparation overthefemoral artery. A flexible spring wirewasinserted through a Cournand needle into thefemoral artery, anditwaspassed under television imageamplification control intotheabdominal aorta. TheCournand needle wasremovedanda flexible Odman-Ledin radiopaque polyethylene catheter witha pre-moulded tip waspassed overtheflexible spring guide wire. Greatcarewastakennottostretch thedistal curvature onthecatheter asitwasplaced ontheguide wireandasitwaspassed through theskinintothe arterial lumen. Thecatheter wasadvanced totheappropriate level intheaorta depending upontheartery which wastobecatheterized. Forthecoeliac artery, forexample, thecatheter wasadvanced tothetwelfth thoracic vertebra. Theguide wirewasgradually withdrawn, thetipofthe catheter wasrotated anteriorly andturned slightly tothe left side andmoveddownuntil thetipentered thecoeliac artery. Ontheanterior-posterior