Methods Liver scanning was performed with a high frequency transducer to measure the velocity acceleration time and resistant index of portal vein and hepatic artery after finishing the anastomosis.

They work by sending out pulses of high-frequency sound and then interpreting the reflections as images.To do all this, though, you need a device called a transducer.

They work by sending out pulses of high-frequency sound and then interpreting the reflections as images. To do all this, though, you need a device called a transducer.