Various imaging methods in the detection of small hepatomas.

概要

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Fifty-one patients with small hepatomas under 5cm in diameter were studied to compare the detectability of various imaging methods. Positive finding was obtained in 50% of the patients by scintigraphy, in 74% by ultrasonography and in 79% by CT during screening tests. Rate of detection in retrospective analysis, after the site of the tumor had been known, were 73%, 93% and 87% respectively. Rate of detection was 92% by celiac arteriography and 98% by selective hepatic arteriography.<BR>In 21 patients, who had the tumor under 3cm, the rate was 32% for scintigraphy, 74% for ultrasonography and 65% for CT during screening, whereas it was 58%, 84% and 75% retrospectively. By celiac arteriography, it was 85%, and by hepatic arteriography, 95%.<BR>Rate of detection of small hepatomas in screening tests differed remarkably from that in retrospective analysis. No single method of imaging can disclose reliably the presense of small hepatoma, therefore more than one method should be used in screening.
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