B. Brkljacic et al., INTRARENAL DUPLEX-DOPPLER SONOGRAPHIC EVALUATION OF UNILATERAL NATIVEKIDNEY OBSTRUCTION, Journal of ultrasound in medicine, 13(3), 1994, pp. 197-204
Citations number
39
Categorie Soggetti
Acoustics,"Radiology,Nuclear Medicine & Medical Imaging
RIs were measured in intrarenal arteries in 66 kidneys of 33 examinees
without renal impairment and in 42 kidneys of 21 patients with unilat
eral urinary obstruction. The mean RI in normal kidneys was 0.593 +/-
0.040. Patients with unilateral obstruction had a mean RI of 0.709 +/-
0.039 in obstructed kidneys and a mean RI of 0.591 +/- 0.033 in contr
alateral nonobstructed kidneys. Statistically significant differences
have been noticed in the groups of normal versus obstructed kidneys (P
< 0.001) and of obstructed versus contralateral nonobstructed kidneys
(P < 0.001). The mean dRI was 0.118 +/- 0.034 in patients with unilat
eral obstruction, and it was 0.014 +/- 0.012 in examinees without rena
l impairment (P < 0.001). A comparison of RI values between the right
and left kidneys in a patient with unilateral obstruction proved more
useful than using a 0.7 RI cutoff value in a Doppler sonographic diagn
osis of unilateral obstruction.