当前位置： SCI文献检索 > PEDIATRIC RADIOLOGY期刊下所有文献 > Contrast-enhanced magnetic resonance angiography for the detection of crossing renal vessels in children with symptomatic ureteropelvic junction obstruction: comparison with operative findings.

Contrast-enhanced magnetic resonance angiography for the detection of crossing renal vessels in children with symptomatic ureteropelvic junction obstruction: comparison with operative findings.

Abstract：

BACKGROUND:Crossing renal vessels (CRV) are associated with ureteropelvic junction (UPJ) obstruction, particularly when presentation is beyond the neonatal period. Their presence may influence surgical management. OBJECTIVE:To evaluate the accuracy of contrast-enhanced magnetic resonance angiography (CE-MRA) in the identification of CRV in children requiring surgical treatment of symptomatic UPJ obstruction, against a gold standard of laparoscopic or open surgical findings. MATERIALS AND METHODS:We reviewed CE-MRA studies (3-D T2-weighted turbo spin-echo and multiphase 3-D spoiled gradient echo following intravenous gadolinium administration) of 14 children, age range 6-15 years, performed prior to surgery for suspected CRV-related UPJ obstruction. Consensus reviews of the CE-MRA studies were compared with surgical findings. RESULTS:CE-MRA demonstrated CRV at the level of the obstruction in nine and no crossing vessels in five children. These were all verified intraoperatively (chi2=14.0; P<0.001). In eight of the nine patients with CRV there was no evidence of intrinsic obstruction at surgery. In the remaining patient there was fibrosis of the upper ureter. CONCLUSION:CE-MRA is an accurate means of identifying CRV in children older than 6 years with symptomatic UPJ obstruction.

journal_name

Pediatr Radiol

journal_title

Pediatric radiology

authors

Calder AD,Hiorns MP,Abhyankar A,Mushtaq I,Olsen OE

doi

10.1007/s00247-007-0416-2

subject

Has Abstract

pub_date

2007-04-01 00:00:00

pages

356-61

issue

4

eissn

0301-0449

issn

1432-1998

journal_volume

37

pub_type

杂志文章

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