Liu Z, et al. - The accuracy of transabdominal ultrasound after oral administration of a cellulose-based gastric contrast agents (TUS-OSCA) in the evaluation of gastric emptying of a semisolid meal was explored in this analysis. Participants in the study were 20 healthy young patients (10 males and 10 females aged 25.5 ± 2.5 y). A good correlation was found between the gastric 50% emptying times determined by scintigraphy and TUS-OSCA. For measuring gastric emptying of semisolids, TUS-OSCA was a novel, non-invasive, convenient and standard technique.