Masaryk A M, Ross J S, DiCello M C, Modic M T, Paranandi L, Masaryk T J
Department of Diagnostic Radiology, University Hospitals of Cleveland, OH.
Radiology. 1991 Jun;179(3):797-804. doi: 10.1148/radiology.179.3.2027995.
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.
作者比较了38例最初因疑似颈动脉分叉处动脉硬化疾病而接受选择性动脉内数字减影血管造影（DSA）检查患者的三维傅里叶变换（3DFT）飞行时间磁共振（MR）血管造影。在DSA显示的75条颈动脉中，成功获得了65条（87%）的MR血管造影。由两名独立观察者在两个不同时间对DSA和MR血管造影研究进行百分比面积狭窄评估。统计检验表明，每位观察者以及观察者之间在解释上具有一致性。在描绘百分比面积狭窄变化的能力方面，两种检查方式之间未发现显著差异。在参与比较的32条右侧颈动脉中，MR血管造影与动脉内DSA之间差异的中位数为1.83%（范围为-22.38%至55.60%）；在33条显示的左侧颈动脉中，差异中位数为0.00%（范围为-20.55%至49.95%）。受试者操作特征分析表明，技术上足够的MR血管造影可能是一种对狭窄敏感的筛查检查。
