A retrospective study of ultrasound images of the liver in patients with hepatitis was undertaken. Two distinct ultrasound patterns were detected. In acute hepatitis, the predominant findings were accentuated brightness and more extensive demonstration of the portal vein radicle walls and overall decreased echogenicity of the liver. Chronic hepatitis primarily revealed decreased brightness and number of portal vein radicle walls and verall increased liver echogenicity. In addition, the pathological severity closely paralleled these ultrasound patterns. A prospective study confirmed the same acute hepatitis ultrasound findings with close correlation to the clinical severity. These distinct ultrasound patterns will help to evaluate patients with suspected acute and chronic hepatitis and more accurately define intrahepatic causes of jaundice.

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The results of 1,029 ultrasound B-scan examinations of the breast using two automated water-path scanners were correlated with histopathology data in 278 patients who had undergone biopsy. Of the 1,029 patients, a subgroup of 709 patients had both ultrasound mammograms (USM) and radiographic mammograms (XRM) obtained. A sensitivity for breast cancer of 69% was found for USM and 74% for XRM on initial independent readings when there was no knowledge of clinical data. These are not statistically different using the McNemar test for paired comparisons. When the USM were reinterpreted with the knowledge of the patient's age, history, physical examination, and, when available, the XRM interpretation, the USM sensitivity for breast cancer was 79%.

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