Image-directed color Doppler ultrasound evaluation of the single kidney after unilateral nephrectomy in adults.
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.
Gómez-Ansón
B
B
Department of Radiology, Hospital Doce de Octubre, Madrid, Spain.
Carrero-López
V
V
Díaz-González
R
R
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