Ultrasound and hepatic metastases.

Recent advances in ultrasonic technology have permitted differentiation of tissue within an organ. Fifty-nine patients in whom satisfactory follow-up could be obtained underwent grey-scale ultrasonic examination of their livers. Fifty-three patients were scanned successfully and of these a correct diagnosis as to whether metastases were present or not was given in 46. Ultrasound is a safe non-invasive way of detecting hepatic metastases.