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The echoflowscan findings of 121 patients with acute cerebro-vascular diseases were compared with the angiographic features. The results of the degree of carotid stenosis correlated well in 86%. In 14% the ultrasonic findings were false. To be more effective in non-invasive carotid evaluation, a selected battery of tests is required.

Hematemesis in a thorotrastosis patient with severe liver dystrophy led to a tentative diagnosis of portal hypertension. The possibility of portal hypertension was eliminated via angiography. The cause of the hematoemesis was multiple bleeding stomach ulcers. In spite of severe damage to the liver parenchyma, portal hypertension with thorotrastosis does not usually occur. This has been confirmed in the literature and by histologic investigations. In second thorotrastosis patient, the cause of pain and swelling was a sterile abscess formation in the area of the thorotrastoma.

The results of Doppler sonographic and Duplex sonographic examinations of the extracranial carotid artery carried out in 100 patients by two sonographers were compared with angiographic findings. The accuracy and quality of the ultrasonic examinations did not differ from those of documented examinations performed by physicians. The percentage of error due to mistakes on the part of sonographer vas 1.3%. We conclude that sonographers are qualified for performing carotid Doppler and duplex sonography, provided that they are well-trained, experienced and supervised.