Zeitschrift für Gastroenterologie
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The reliability and validity of sonographic measurements of gastric emptying employing sagittal antral planimetry were investigated. The intraindividual reproducibility of this procedure was examined in 15 healthy volunteers, who ingested 400 ml of water on two separate study days. ⋯ There was a significant correlation between the relative residual volumes calculated by scintigraphy and by ultrasound (r = 0.82). These results imply that the ultrasonic sagittal antral area method is reliable and valid in the assessment of gastric emptying rates in humans.