A method for estimating renal functions based on the radioisotope renogram.
A method has been developed to predict or estimate the results of commonly used routine renal function tests based on a renogram. The model is built on two differential equations derived in terms of seven parameters which can be measured from tracings of radioactivity recorded on the heart, the kidneys, and the bladder. The model successfully reconstructed every possible variation of the renogram pattern by computer simulation. Expected results of the four renal function tests were computed by multiple regression equations using five out of the seven parameters as criteria variables (p less than 0.05). The four renal function tests were (1) a concentration test, (2) a PSP test, (3) the glomerular filtration rate, and (4) blood urea nitrogen.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003936:Diagnosis, Computer-Assisted; D006801:Humans; D007674:Kidney Diseases / Q000175:diagnosis*; D011866:Radioisotope Renography