3DFT MR angiography of the carotid bifurcation: potential and limitations as a screening examination.
3DFT MR angiography of the carotid bifurcation: potential and limitations as a screening examination.
复制标题
颈动脉分叉处的 3DFT MR 血管造影：作为筛查检查的潜力和局限性。
DOI：
10.1148/radiology.179.3.2027995
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发表时间：
1991
期刊：
影响因子：
19.7
通讯作者：
Masaryk,TJ
中科院分区：
文献类型：
--
作者：
Masaryk,AM;Ross,JS;DiCello,MC;Modic,MT;Paranandi,L;Masaryk,TJ
作者对 38 名患者的三维傅里叶变换 (3DFT) 飞行时间磁共振 (MR) 血管造影进行了比较，这些患者最初是通过选择性动脉内数字减影血管造影 (DSA) 进行研究，以诊断疑似颈动脉分叉处的动脉硬化疾病。通过 DSA 观察，75 条颈动脉中的 65 条 (87%) 成功获得了 MR 血管造影。由两名独立观察者两次评估 DSA 和 MR 血管造影研究的面积狭窄百分比。统计测试表明每个观察者以及观察者之间的解释是一致的。两种方式在描绘面积狭窄百分比变化的能力方面没有发现显着差异。对于比较中的 32 条右颈动脉，MR 血管造影与动脉内 DSA 之间的差异中位数为 1.83%（范围为 -22.38% 至 55.60%）；对于 33 条可视化的左颈动脉，为 0.00%（范围 -20.55% 至 49.95%）。接受者操作特征分析表明，技术上足够的磁共振血管造影可能是狭窄的敏感筛查检查。
The authors compared the three-dimensional Fourier transform (3DFT) time-of-flight magnetic resonance (MR) angiograms in 38 patients initially studied with selective intraarterial digital subtraction angiography (DSA) for suspected arteriosclerotic disease of the carotid bifurcation. MR angiograms were successfully obtained in 65 of the 75 carotid arteries (87%) visualized with DSA. DSA and MR angiographic studies were assessed for percentage area stenosis by two independent observers on two occasions. Statistical tests indicated consistency in interpretation for each observer as well as between observers. No significant difference was found between the two modalities in ability to depict changes in percentage area stenosis. For the 32 right carotid arteries in the comparison, the median for the difference between MR angiography and intraarterial DSA was 1.83% (range, -22.38% to 55.60%); for the 33 visualized left carotid arteries, it was 0.00% (range, -20.55% to 49.95%). Receiver operating characteristic analysis indicated that technically adequate MR angiography may be a sensitive screening examination for stenoses.