title: The normal values of the radionuclide esophageal transit test and the influence of age and gender in healthy Chinese.
abstract: This study evaluates esophageal function in 55 healthy Chinese using a radionuclide esophageal transit test (RETT) of solid and liquid foods. A standard method modified from Klein et al. and Russell et al. was used to calculate: total mean transit time (MTT), residual fraction (RF), and retrograde index (RI) in the supine position. In Group 1, 30 cases accepted solid food RETT and in Group 2, 25 cases accepted liquid food RETT. Both groups were divided into different subgroups based on their ages: older and younger or according to their sex: male and female. The results show significant differences in MTT, RF and RI between the two groups, but no statistical differences were found in all of the parameters between the subgroups based on age or sex in both food types. In conclusion, the RETT is a simple and non-invasive method of evaluating the esophageal functions for both types of food and influences due to differences in age or sex were not significant in healthy Chinese.
authors.affiliation: Department of Nuclear Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China.
authors.forename: W Y
authors.initials: WY
authors.lastname: Lin
authors.forename: C H
authors.initials: CH
authors.lastname: Kao
authors.forename: C Y
authors.initials: CY
authors.lastname: Hsu
authors.forename: S Q
authors.initials: SQ
authors.lastname: Liao
authors.forename: S J
authors.initials: SJ
authors.lastname: Wang
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D004947:Esophagus / Q000000981:diagnostic imaging / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D012016:Reference Values; D012737:Sex Factors; D013997:Time Factors