Peripheral vascular disease: Comparison of continuous MR angiography and conventional MR angiography - Pilot study
Peripheral vascular disease: Comparison of continuous MR angiography and conventional MR angiography - Pilot study
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DOI：
10.1148/radiol.2431052098
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发表时间：
2007-04-01
期刊：
影响因子：
19.7
通讯作者：
Quick, Harald H.
中科院分区：
文献类型：
--
作者：
Vogt, Florian M.;Zenge, Michael O.;Quick, Harald H.
本研究的目的是前瞻性地评价三维磁共振血管成像技术评价周围动脉系统狭窄的准确性，并以常规磁共振血管成像为参照。这项研究得到了当地机构审查委员会的批准；获得了知情同意。5名健康男性志愿者(平均年龄27岁，范围24-35岁)和4名男性和1名女性(平均年龄63岁，范围46-78岁)外周动脉闭塞症患者。两种技术获得的图像具有很好的一致性(Cohen kappa=0.75)。常规方法获得的图像比连续技术获得的图像质量更高(平均1.07+/-0.25[标准差]vs1.58+/-0.6；P<；0.05)；小血管在上面看起来更清晰。对于显著狭窄和闭塞的检测，连续技术的准确性、敏感性和特异性分别为92.8%、100%和89.2%。
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.