CO2 Splenoportography: Preliminary Results
James G. Caridi1,
Irvin F. Hawkins, Jr.1,
Kyung Cho2,
Steven Y. Sohn1,
Max R. Langham, Jr.3,
Bret N. Weichmann4 and
Scott D. Klioze1
1 Department of Radiology, University of Florida College of Medicine, 1600 S.W.
Archer Rd., P. O. Box 100374, Gainesville, FL 32610-0374.
2 Department of Radiology, University of Michigan Health System, 1500 E. Medical
Center Dr., Ann Arbor, MI 48109-0001.
3 Department of Surgery, University of Florida College of Medicine, P. O. Box
110240, Gainesville, FL 32610-0240.
4 Department of Radiology, North Florida Regional Medical Center, I-75 and
Newberry Rd., Gainesville, FL 32614.

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Fig. 1. CO2 splenoportogram in 2-year-old girl with
biliary atresia shows patent splenic (thin solid arrow) and
intrahepatic veins and small portal vein (thick solid arrow). Note
reflux in superior (open arrow) and inferior (curved arrow)
mesenteric veins. Sonography and MR angiography (not shown) showed no portal
vein.
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Fig. 2A. 5-month-old boy with biliary atresia. CO2
splenoportogram shows splenic superior mesenteric vein (thick solid
arrows), coronary and gastroesophageal varices (thin solid
arrow), and patent diminutive portal veins (open arrow), which
were incorrectly interpreted as collateral vein. CO2 injection was
performed with patient in Trendelenburg's position.
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Fig. 2B. 5-month-old boy with biliary atresia. Splenoportogram shows
needle in spleen (curved arrow) and CO2 filling inferior
vena cava (open arrow) via multiple retroperitoneal collateral veins
(thick solid arrow). Coronary collateral veins (thin solid
arrow) also fill. No filling of either superior mesenteric or portal
veins was revealed.
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Fig. 3. CO2 splenoportography in 9-year-old girl
postsplenorenal shunt with 25-gauge needle (thick solid arrow) in
spleen shows cavernous transformation of portal vein (open arrow) and
short gastric collateral veins (thin solid arrow) with no evidence of
splenorenal shunt. CT (not shown) revealed patent shunt.
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Fig. 4. 2-year-old boy with recurrent hepatoblastoma and occluded
portal vein who had undergone trisegmentectomy. CO2 splenoportogram
shows splenic vein as patent (thick solid arrow). Large hypogastric
collateral vein (thin solid arrow) fills inferior vena cava (open
arrow).
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Copyright © 2003 by the American Roentgen Ray Society.