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 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%.
Han
Kuo-Ming
KM
Department of Radiology, Catharina Hospital, Michelangelolaan 2, 5602 ZA Eindhoven, the Netherlands.
Duijm
Lucien E M
LE
Thelissen
Guillaume R P
GR
Cuypers
Philippe W M
PW
Douwes-Draaijer
Petra
P
Tielbeek
Alexander V
AV
Wondergem
John H M
JH
van den Bosch
Harrie C M
HC
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002408:Catheters, Indwelling; D003287:Contrast Media; D004868:Equipment Failure; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow; D006435:Renal Dialysis / Q000295:instrumentation; D013348:Subclavian Artery / Q000502:physiology; D014683:Vena Cava, Superior / Q000502:physiology
D003287:Contrast Media