title: Image-directed color Doppler ultrasound evaluation of the single kidney after unilateral nephrectomy in adults.
abstract: Renal adaptations occur in the single kidney. The kidney of 21 unilaterally nephrectomized adults was studied with image-directed color Doppler ultrasound (ICDU) and compared with 35 age-matched controls. Kidney volume, standardized kidney volume, hypertrophy, both intrarenal- and main renal artery-resistive indexes were quantified, correlated to each other and correlated to renal function. The influence of age, sex, or time since nephrectomy was also studied. There was a mean hypertrophy of approximately 20%. Intrarenal resistances lay within normal limits for age. There was no correlation between renal function, size, and hemodynamics. Age, sex, and time since nephrectomy had a limited influence on renal adaptations.
authors.affiliation: Department of Radiology, Hospital Doce de Octubre, Madrid, Spain.
authors.forename: B
authors.initials: B
authors.lastname: Gómez-Ansón
authors.forename: V
authors.initials: V
authors.lastname: Carrero-López
authors.forename: R
authors.initials: R
authors.lastname: Díaz-González
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006439:Hemodynamics; D006801:Humans; D006984:Hypertrophy / Q000000981:diagnostic imaging; D007668:Kidney / Q000000981:diagnostic imaging* / Q000473:pathology / Q000502:physiology; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D011446:Prospective Studies; D012077:Renal Artery / Q000502:physiology; D013997:Time Factors; D018615:Ultrasonography, Doppler, Color; D014655:Vascular Resistance