Abstract
Gastric aspiration and HIDA scintigraphy have been compared to assess duodenogastric bile reflux. Gastric aspiration was performed on two separate occasions with a total examination time of 3 h. The highest 1-h output and the highest concentration of bile acids were recorded. HIDA scintigraphy was carried out for 90 min after an injection of 60MBq 99mTc-dimethyl-iminodiacetic acid (HIDA). Forty-six patients with different gastrointestinal disorders were studied; 24 patients were positive and 13 negative in both tests. Accordingly, the methods agreed in 37 of 46 patients (80.4%). It is concluded that gastric aspiration is as reliable as HIDA scintigraphy to assess fasting bile reflux.