title: [Estimation of glomerular filtration rate from the urinary excreted contrast medium concentration].
abstract: In the animal experiments, glomerular filtration rate (GFR) values were estimated from the urinary response to the intravenously administrated iopamidol. By introducing some reasonable assumptions, mass balance equations about the contrast medium were transformed and GFR was defined as the ratio of logarithm of urinary concentration by time. Urinary concentrations were determined by measuring the photodensity on the X-ray film of urine specimens. Obtained values of GFR were well fitted to those obtained by the analysis of the plasma disappearance curve. The advantage of this method is that measurement of urinary volume is not necessary.
authors.affiliation: Department of Urology, Tohoku University School of Medicine.
authors.forename: K
authors.initials: K
authors.lastname: Kambe
authors.forename: K
authors.initials: K
authors.lastname: Taguchi
authors.forename: T
authors.initials: T
authors.lastname: Saitoh
authors.forename: N
authors.initials: N
authors.lastname: Ioritani
authors.forename: S
authors.initials: S
authors.lastname: Shirai
authors.forename: R
authors.initials: R
authors.lastname: Konda
authors.forename: A
authors.initials: A
authors.lastname: Fukuzaki
authors.forename: M
authors.initials: M
authors.lastname: Kuwahara
authors.forename: S
authors.initials: S
authors.lastname: Orikasa
mesh_terms: D000818:Animals; D003287:Contrast Media; D004285:Dogs; D005919:Glomerular Filtration Rate; D007479:Iopamidol; D008954:Models, Biological
chemical_list: D003287:Contrast Media; D007479:Iopamidol