Radionuclide imaging and ultrasound in liver/spleen trauma: a prospective comparison.

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Abstract
In a prospective blind study of liver/spleen trauma, 32 consecutive patients were evaluated by radionuclide imaging (99mTc-S colloid) and gray-scale ultrasound. Six patients (19%) had inadequate sonograms due to injuries and pain. Thirteen (41%) were normal, 13 (41%) were abnormal with 1 technique or the other, and there was a discrepancy in 2 (6%). Of the 13 abnormal patients, 1 had a lacerated spleen, 2 had angiographic confirmation of a subcapsular hematoma, and 10 showed resolution on follow-up. Two patients with left-sided trauma had abnormal radionuclide scans of the liver; sonograms were initially normal in one of them, but subsequent imaging confirmed the abnormality. Apparently, imaging with 99mTc-sulfur colloid should be the primary screening examination for liver/spleen trauma.

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