Use of Helical CT in Assessment of Crossing Vessels in Pelviureteric Junction Obstruction

AIM: The purpose of this study is to confirm the accuracy of non-invasive helical computed tomography (CT) with multiplanar reformatting in the diagnosis of crossing vessels in patients with pelviureteric junction (PUJ) obstruction. MATERIALS AND METHODS: Nineteen patients with confirmed PUJ obstruc...

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Bibliographic Details
Published in:Clinical radiology 2000-03, Vol.55 (3), p.212-216
Main Authors: LACEY, N.A., MASSOUH, H.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biological and medical sciences
CT, helical, kidney, ureteropelvic junction, hydronephrosis
Humans
Hydronephrosis - diagnostic imaging
Investigative techniques, diagnostic techniques (general aspects)
Kidney - blood supply
Kidney - diagnostic imaging
Medical sciences
Middle Aged
Radiodiagnosis. Nmr imagery. Nmr spectrometry
Tomography, X-Ray Computed - methods
Ureteral Obstruction - diagnostic imaging
Urinary system
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Summary:AIM: The purpose of this study is to confirm the accuracy of non-invasive helical computed tomography (CT) with multiplanar reformatting in the diagnosis of crossing vessels in patients with pelviureteric junction (PUJ) obstruction. MATERIALS AND METHODS: Nineteen patients with confirmed PUJ obstruction underwent CT of the renal area with intravenous contrast medium. Patients shown to have crossing vessels had to undergo a pyeloplasty by open surgery or laparoscopy. Patients with no vessels could have their PUJ obstruction safely treated with less invasive techniques such as balloon dilatation. RESULTS: Fourteen patients were shown to have crossing vessels. Of these, 10 had their relationship to the PUJ confirmed at a subsequent laparotomy. Of the remaining four patients, one was lost to follow-up and two were unwell due to unrelated disease. The other patient had already had a vessel moved at a previous laparotomy. Of the five patients without obstructing vessels, two were confirmed not to have a related vessel at laparotomy, one has undergone balloon dilatation and the other two were lost to follow-up. CONCLUSION: Helical CT is an accurate and non-invasive method of demonstrating crossing vessels in PUJ obstruction. Diagnosis of these vessels has a major role in the choice of therapeutic treatment.Lacey, N. A., Massouh, H. (2000). Clinical Radiology55, 212–216.
ISSN:0009-9260
1365-229X
DOI:10.1053/crad.1999.0367