title: A Mars bar is not an adequate fatty meal--a comparison with Calogen.
abstract: A prospective study was performed to compare the contractility of the gall bladder ultrasonically after ingestion of a 65 g Mars bar or 60 ml of Calogen. Using a repeated measure design, 27 healthy subjects were studied fasting and at 10 min intervals after ingestion of the fatty meal. Results show that there is a significant difference between Mars bar and Calogen (ANOVA, P < or = 0.01), with Calogen producing greater gall bladder contraction overall, and that the ejection fraction is greatest at 40 min (t = 2.23, P < or = 0.01). It is suggested that 60 ml of Calogen is used as the standard fatty meal to assess gall bladder contractility and that the patient is rescanned 40 min post fatty meal.
authors.affiliation: Department of Radiology, Northwick Park, Harrow, Middlesex.
authors.forename: G R
authors.initials: GR
authors.lastname: Kaplan
authors.forename: C H
authors.initials: CH
authors.lastname: Charlesworth
authors.forename: R
authors.initials: R
authors.lastname: Banarsee
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002182:Candy; D003287:Contrast Media; D005260:Female; D005704:Gallbladder / Q000502:physiology*; D016473:Gallbladder Emptying / Q000502:physiology; D006801:Humans; D008297:Male; D011446:Prospective Studies
chemical_list: D003287:Contrast Media