Hepatofugal portal flow in advanced liver cirrhosis with spontaneous portosystemic shunts: effects on parenchymal hepatic enhancement at dual-phase helical CT
| Autor: | B. Dousset, O. Vignaux, H. Gouya, J. Augui, S. Chaussade, Joël Coste, P. Legmann, A. Oudjit |
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| Rok vydání: | 2002 |
| Předmět: |
Liver Cirrhosis
Male medicine.medical_specialty Cirrhosis Urology Portal venous pressure Collateral Circulation Internal medicine Parenchyma Hypertension Portal medicine Humans Radiology Nuclear Medicine and imaging Radiological and Ultrasound Technology business.industry Vascular disease Portal Vein Gastroenterology General Medicine Hepatology Middle Aged medicine.disease Collateral circulation Liver Portal hypertension Female Radiology business Tomography X-Ray Computed Shunt (electrical) Liver Circulation |
| Zdroj: | Abdominal imaging. 27(5) |
| ISSN: | 0942-8925 |
| Popis: | We investigated whether spontaneous hepatofugal portal flow in advanced cirrhosis affects hepatic enhancement on dual-phase helical computed tomography.Fifteen patients with hepatofugal portal flow on Doppler sonography and angiography (group 1) and 15 age- and sex-matched patients with hepatopetal portal flow (control; group 2) underwent dual-phase helical computed tomography. Vascular and liver attenuation values were measured on unenhanced scans and scans obtained during hepatic arterial (HAP; 25 s) and portal venous (PVP; 70 s) phases.Portal vein enhancement was lower during PVP in group 1 than in group 2 ( p0.0001). Liver enhancement was higher during HAP and lower and delayed during PVP in group 1 versus group 2 ( p0.0001).In hepatofugal portal flow, liver enhancement is increased during HAP and compensating for decreased and delayed liver enhancement during PVP, resulting in potential decreased hypervascular tumor conspicuity. |
| Databáze: | OpenAIRE |
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