[A clinical study and the diagnosis in magnetic resonance imaging of renal scarring].
Twenty-nine kidneys of seventeen patients (nine boys and eight girls) with vesicoureteral reflux and repeated urinary tract infection were studied by magnetic resonance imaging for diagnosis of renal scarring and correlation between clinical data and the degree renal scarring. Renal scarring is classified into three types according to findings in magnetic resonance imaging. The degree of renal scarring are classified into five grades according to traditional grading of intravenous pyelogram. If a fine deformity of calyx is shown on intravenous pyelogram, magnetic resonance imaging demonstrates renal scarring. Magnetic resonance imaging without irradiation is exceedingly valuable for the diagnosis of renal scarring. The appearances of magnetic resonance imaging were supported by X-ray computed tomography. There is a substantial correlation between serum creatinine and the grades of renal scarring by magnetic resonance imaging. There is a substantial correlation between fever attacks and the grade of renal scarring, and there is a significant reverse correlation between the age of the onset of upper urinary tract infection and the grade of renal scarring. It is suggested that upper urinary tract infection is the most significant factor in scar formation.
Tsugaya
M
M
Hirao
N
N
Ohtaguro
K
K
Kato
J
J
D000293:Adolescent; D000328:Adult; D001806:Blood Urea Nitrogen; D002648:Child; D002675:Child, Preschool; D003404:Creatinine / Q000097:blood; D005260:Female; D006801:Humans; D007668:Kidney / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed; D014552:Urinary Tract Infections / Q000175:diagnosis* / Q000473:pathology; D014718:Vesico-Ureteral Reflux / Q000175:diagnosis* / Q000473:pathology
D003404:Creatinine