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Low lactase levels: evaluation of the radiologic diagnosis

Authors :
Morrison Wj
Dana Ea
Christopher Nl
Bayless Tm
Source :
Radiology. 111(3)
Publication Year :
1974

Abstract

Twenty-three patients with, low lactase levels and 13 lactase-normal subjects (as determined by disaccharidase assay of jejunal biopsy) underwent a regular small bowel series, a small bowel series with 25 g lactose added to barium sulfate, and a lactose tolerance test. The lactose-barium small bowel study is a sensitive and specific test for individuals with low lactase levels that compares favorably with the lactose tolerance test. The one-hour lactose-barium study, evaluated as a screening procedure, was 90% accurate in predicting low-lactase individuals but had an overall 10% false-positive rate in lactase-normal subjects.

Details

ISSN :
00338419
Volume :
111
Issue :
3
Database :
OpenAIRE
Journal :
Radiology
Accession number :
edsair.doi.dedup.....7750f759651f1b2429afaef2ee2e0ad7