Contrast-enhanced magnetic resonance angiography MoBI-trak in the study of peripheral vascular disease

被引:11
作者
Carriero, A [1 ]
Maggialetti, A [1 ]
Pinto, D [1 ]
Salcuni, M [1 ]
Mansour, M [1 ]
Petronelli, S [1 ]
Bonomo, L [1 ]
机构
[1] Policlin SS Annunziata, Dept Radiol, I-66100 Chieti, Italy
关键词
magnetic resonance; angiography; peripheral vessels; contrast-enhanced magnetic resonance angiography; MoBI-trak technique; vascular disease;
D O I
10.1007/s00270-001-0064-0
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Purpose: To evaluate the diagnostic accuracy of contrast-enhanced magnetic resonance angiography (CE-MRA) MoBI-trak of peripheral vessels in patients with peripheral vascular disease who were candidates for digital subtraction angiography (DSA). Methods: Eleven patients underwent CE-MRA with automated table movement (MoBI-trak) using a 1.5 T superconducting magnet (Philips Gyroscan ACS NT) equipped with a Power Trak 6000 gradient. Contrast medium (Gd-DTPA) was administered in two sequential boluses-20 cm(3) at 0.6 cm(3)/sec (starting phase) and 20 cm(3) at 0.3 cm(3)/sec (maintenance phase)-using a MedRad Spectris automatic injector. DSA was the gold standard and was performed using a Philips Integris 3000, with a brilliance intensifier of 38 seconds. DSA and MRA were evaluated on printed films. Results: DSA provided 213 diagnostic assessments: 144 negative, 30 stenosis <50%, 5 stenoses in the 51-70% range, 12 stenoses in the 71-99% range and 22 occlusions. CE-MRA MoBI-trak sensitivity, specificity, positive and negative predictive value and diagnostic accuracy were 94.1%, 99.2%, 98.4%, 80.0% and 97.5%, respectively. Conclusions: Our work is in accordance with the literature. Using this technique MoBI-trak has been shown to be a reliable technique for the detection of peripheral vascular disease up to the trifurcation, although it underlines the necessity for more diagnostic investigation and improvements in the technique.
引用
收藏
页码:42 / 48
页数:7
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