Radiology of Liver Circulation

1. Normal Hepatic Circulation — Anatomy and Physiology.- I. The hepatic lobule and its three vascular axes.- II. Intrahepatic arterio-portal communications.- III. Normal hepatic circulation.- 2. Angiographic Methods.- I. Direct portal venous opacification.- II. Hepatic venous study.- III. Arterioportography.- IV. Computed tomography.- 3. The Main Arteriographic Signs of Portal Hypertension and their Hemodynamical Significance.- I. The mesenterico-portal axis opacification.- II. The spleen pattern.- III. Hepatic arterial changes.- 4. Presinusoidal Obstructions.- I. Proper angiographic signs.- II. The main causes of prehepatic obstructions.- III. Intrahepatic presinusoidal obstructions.- 5. Diffuse Post-Sinusoidal Obstructions.- I. Proper arteriographic signs.- II. Evaluation of the intensity of the obstruction.- III. Etiological diagnosis.- 6. Are There Portal Hypertensions Without Obstruction?.- I. Portal hypertension of splenic origin.- II. Portal hypertension and arteriovenous fistula.- 7. Contribution of Arterioportography to the Treatment of Portal Hypertension.- I. Checking of surgical porto-caval anastomosis by arterioportography.- II. Treatment of portal hypertension according to hemodynamical changes.- III. Interventional radiology and portal hypertension.- 8. Segmental Intrahepatic Obstructions without Portal Hypertension.- I. Segmental reversal of the intrahepatic portal flow: angiographic pattern.- II. Differential diagnosis of segmental reversal of intrahepatic portal flow: arterio-portal fistulae.- III. Etiological diagnosis.- IV. Conclusions.- General conclusions.- References.