Ultrasound of the liver shows a fluid-filled mass with a peripheral ... biopsy the viable portion of tumor and avoid the adjacent normal hepatocytes or necrotic portions of the lesion.

The pulse-echo ultrasound allows measurement of wave velocity (in meters per second), which correlates with measurement of liver stiffness (in kilopascals). Normal liver stiffness is reported to ...

but the latest involved a patient treated with a lower dose of AT132 who had a normal liver ultrasound at enrolment. The FDA only relaxed its clinical hold on ASPIRO after Astellas agreed to ...