EXTRACRANIAL CAROTID ARTERIES - EVALUATION WITH BLACK BLOOD MR ANGIOGRAPHY
EXTRACRANIAL CAROTID ARTERIES - EVALUATION WITH BLACK BLOOD MR ANGIOGRAPHY
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DOI：
10.1148/radiology.177.1.2399337
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发表时间：
1990-10-01
期刊：
影响因子：
19.7
通讯作者：
ATKINSON, DJ
中科院分区：
文献类型：
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作者：
EDELMAN, RR;MATTLE, HP;ATKINSON, DJ
作者评估了“黑血”磁共振 (MR) 血管造影描绘颅外颈动脉疾病的准确性。采用二维和三维流量补偿梯度回波序列来创建“亮血”图像。具有流动预饱和的薄片自旋回波序列可以创建黑血图像。投影血管造影是分别应用最大或最小强度投影算法从明亮和黑色血液图像制作的。这些方法被用于 13 名健康志愿者和 17 名患者，并对 MR 血管造影和传统血管造影进行了前瞻性盲法比较。亮血法和黑血法均可清晰显示正常颈动脉；在患者中，这两种方法对于检测颈动脉疾病都很敏感。然而，明亮血管造影夸大了33条动脉中13条颈动脉病变的严重程度，其中大部分为严重病变；黑血管造影则没有遇到这个问题。作者得出结论，明亮血管造影是筛查颈动脉疾病的敏感方法。当发现明显异常时，应进行黑血管造影，以更精确地勾画病变范围。
The authors evaluated the accuracy of "black blood" magnetic resonance (MR) angiography for depicting disease involving the extracranial carotid arteries. Two- and three-dimensional flow-compensated gradient-echo sequences were employed to create "bright blood" images. A thin-section spin-echo sequence with flow presaturation allowed the creation of black blood images. Projection angiograms were made from bright and black blood images with application of a maximum- or minimum-intensity projection algorithm, respectively. These methods were used in 13 healthy volunteers and 17 patients, and a prospective blinded comparison of MR angiography and conventional angiography was performed. Normal carotid arteries were well shown with both bright and black blood methods; in patients, both methods were sensitive for detecting carotid disease. However, bright blood angiography exaggerated the severity of carotid lesions in 13 of 33 arteries, mostly in severe disease; this problem was not encountered with black blood angiography. The authors conclude that bright blood angiography is a sensitive method for screening carotid disease; when a significant abnormality is found, black blood angiography should be performed for more precise delineation of the lesion.