Peripheral vascular disease: comparison of continuous MR angiography and conventional MR angiography--pilot study.
The aim of this study was to prospectively assess the accuracy of three-dimensional magnetic resonance (MR) angiography for evaluation of stenosis in the peripheral arterial system with a continuous moving table technique, with conventional MR angiography as reference. This study was approved by the local institutional review board; informed consent was obtained. Five healthy male volunteers (mean age, 27 years; range, 24-35 years) and four men and one woman (mean age, 63 years; range, 46-78 years) with peripheral arterial occlusive disease were examined. Images obtained with both techniques showed excellent concordance (Cohen kappa = 0.75). Images obtained with a conventional protocol had higher quality compared with those obtained with the continuous technique (mean, 1.07 +/- 0.25 [standard deviation] vs 1.58 +/- 0.6; P < .05); small vessels appeared sharper on them. For detection of significant stenosis and occlusion, accuracy, sensitivity, and specificity of the continuous technique were 92.8%, 100%, and 89.2%, respectively.
Vogt
Florian M
FM
Department of Diagnostic and Interventional Radiology, University Hospital Essen, Hufelandstrasse 55, D-45122 Essen, Germany. forian.vogt@uni-essen.de
Zenge
Michael O
MO
Ladd
Mark E
ME
Herborn
Christoph U
CU
Brauck
Katja
K
Luboldt
Wolfgang
W
Barkhausen
Jörg
J
Quick
Harald H
HH
D000328:Adult; D000368:Aged; D001158:Arteries / Q000033:anatomy & histology*; D003251:Constriction, Pathologic / Q000175:diagnosis; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D035002:Lower Extremity / Q000098:blood supply; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010388:Pelvis / Q000098:blood supply; D016491:Peripheral Vascular Diseases / Q000175:diagnosis*; D010865:Pilot Projects; D012077:Renal Artery / Q000033:anatomy & histology; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted