Renal doppler assessment in differentiating obstructive from non-obstructive hydronephrosis in children
- Author:
Nadzri Misni
;
Erica Yee Hing
;
Hamzaini Abdul Hamid
;
Faizah Mohd Zaki
;
Aini AbAziz
;
Kanaheswari Yoganathan
;
Zulfiqar Mohd Annuar
- Publication Type:Journal Article
- Keywords:
Doppler;
ultrasound;
sonography;
resistive index;
hydronephrosis;
children;
paediatric
- From:
The Medical Journal of Malaysia
2015;70(6):346-350
- CountryMalaysia
- Language:English
-
Abstract:
background: to determine the usefulness of Doppler
ultrasound measurement of resistive index (RI) in
differentiating obstructive from non-obstructive
hydronephrosis in children.
Methods: From August 2011 to November 2012, renal
Doppler assessments of the intra-renal renal arteries were
performed on 16 children (19 kidneys) with congenital
hydronephrosis. the independent t-test was used to
assess for significant difference in RI values between those
with obstructive hydronephrosis (6 kidneys) and those with
non-obstructive hydronephrosis (13 kidneys) as determined
by dynamic renal scintigraphy. the assessor was blinded to
the clinical findings and scintigraphy results.
Results: RI was significantly different between obstructive
and non-obstructive hydronephrosis. Obstructive
hydronephrosis returned higher RI values, with mean RI of
0.78. Mean RI in non-obstructive hydronephrosis was 0.70,
and the difference was significant (p <0.05). the sensitivity
and specificity of Doppler ultrasound were 100% and 53%
respectively.
conclusion: Doppler ultrasound measurement of resistive
index is useful in differentiating obstructive from nonobstructive
hydronephrosis and provides an alternative
non-ionizing investigation other than dynamic renal
scintigraphy.
- Full text:P020160224452569657415.pdf
