Failing hemodialysis access grafts: evaluation of complete vascular tree with 3D contrast-enhanced MR angiography with high spatial resolution: initial results in 10 patients

Ten patients with failing hemodialysis access underwent contrast material-enhanced magnetic resonance (MR) angiography within 7 days before digital subtraction angiography (DSA). MR angiography was performed at 1.5 T by using a multistation multiinjection three-dimensional technique, and contrast ma...

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Published inRadiology Vol. 227; no. 2; p. 601
Main Authors Han, Kuo-Ming, Duijm, Lucien E M, Thelissen, Guillaume R P, Cuypers, Philippe W M, Douwes-Draaijer, Petra, Tielbeek, Alexander V, Wondergem, John H M, van den Bosch, Harrie C M
Format Journal Article
LanguageEnglish
Published United States 01.05.2003
Subjects
Adult
Aged
Aged, 80 and over
Catheters, Indwelling
Contrast Media
Equipment Failure
Female
Humans
Imaging, Three-Dimensional
Magnetic Resonance Angiography - methods
Male
Middle Aged
Regional Blood Flow
Renal Dialysis - instrumentation
Subclavian Artery - physiology
Vena Cava, Superior - physiology
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Summary:Ten patients with failing hemodialysis access underwent contrast material-enhanced magnetic resonance (MR) angiography within 7 days before digital subtraction angiography (DSA). MR angiography was performed at 1.5 T by using a multistation multiinjection three-dimensional technique, and contrast material was injected via intravenous cannula. In all patients, MR angiographic images displayed the complete arterial inflow tract from the subclavian artery and access proper. The complete venous outflow tract up to the superior caval vein could be evaluated in all but one patient. DSA showed hemodynamically significant stenoses in 13 segments. MR angiography depicted all 13 stenoses and two false-positive findings, resulting in sensitivity of 100% and specificity of 94%.
ISSN:0033-8419
DOI:10.1148/radiol.2272012079