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Portal systemic shunt through the renal vein.
M Yamada1, H Ishida, T Komatsuda
1Center of Diagnostic Ultrasound, Akita Red Cross Hospital, 222-1, Saruta Kamikitade Akita, Japan. mamikoy@coral.ocn.ne.jp
Abdominal Imaging
|February 9, 2006
Summary
Color Doppler sonography can accurately diagnose portal systemic shunts through the renal vein (P-SR shunt). Detailed findings of these P-SR shunts improve diagnostic confidence in evaluating portal circulation abnormalities.
Area of Science:
- Medical Imaging
- Vascular Ultrasound
- Gastroenterology
Background:
- Color Doppler sonography is commonly used for portal circulation abnormalities.
- Detailed color Doppler findings for portal systemic (P-S) shunts through the renal vein (P-SR shunt) are not well-documented.
Purpose of the Study:
- To review color Doppler findings in patients with P-SR shunt.
- To determine the clinical significance and diagnostic techniques for P-SR shunts.
Main Methods:
- Retrospective review of color Doppler findings.
- Analysis of 18 patients diagnosed with P-SR shunt.
Main Results:
- Splenorenal shunts appear as tortuous vessels at the splenic hilum with reversed or slow splenic vein flow.
- Gastrorenal shunts originate from the splenic vein and join the left renal vein with hepatopetal splenic vein flow.
- P-S shunts via the right renal vein arise from varices and connect to the right renal vein.
Conclusions:
- Familiarity with specific color Doppler findings enhances diagnostic confidence for P-SR shunts.
- Color Doppler sonography is a valuable tool for diagnosing P-SR shunts.