Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Kidney and liver ultrasound scan. (a) Power Doppler image was used to localize renal vessels, while PW-Doppler signal was used to measure renal blood flow thus deriving pulsatility and reflectivity indexes. (b) Mean gray levels of the liver parenchyma were compared to mean gray levels of the renal parenchyma.
