Liver Sonography by Duplex and Color Doppler

D. primary sclerosing cholangitis

E. alcoholic hepatitis/cirrhosis

8. An example of a post-hepatic cause for portal hypertension is

A. myeloproliferative diseases

B. alcoholic hepatitis/cirrhosis

C. primary sclerosing cholangitis

D. right heart failure

E. splenic vein thrombosis

9. When resistance to portal venous flow increases beyond a pressure gradient of _____, portosystemic collaterals develop.

A. > 8 mmHg

B. > 12 mmHg

C. > 16 mmHg

D. > 20 mmHg

E. > 24 mmHg

10. When imaging patients that have portal hypertension, in cases where no flow is detected by color Doppler sonography, it is important not to misdiagnose

A. portal vein thrombosis

B. metastatic cancer within the liver

C. hepatocellular carcinoma

D. hepatic vein thrombosis