Korogi Y, Takahashi M, Mabuchi N, Miki H, Shiga H, Watabe T, O'Uchi T, Nakagawa T, Horikawa Y, Fujiwara S
Department of Radiology, Kumamoto University School of Medicine, Japan.
Radiology. 1994 Oct;193(1):187-93. doi: 10.1148/radiology.193.1.8090890.
To assess the accuracy of three-dimensional, Fourier transform, time-of-flight magnetic resonance (MR) angiography in the detection of intracranial steno-occlusive diseases.
One hundred thirty-one patients (62 male and 69 female patients, aged 6-77 years [mean, 53 years 8 months]) underwent MR and conventional angiography for evaluation of possible intracranial vascular disease. A total of 502 arteries were assessed. Eight projections and a collapsed image postprocessed by means of a maximum-intensity projection algorithm were reviewed by five observers in a blinded manner, with conventional angiography as the standard.
A total of 32 steno-occlusive lesions were available for review. Receiver operating characteristic analysis from the pooled data revealed overall sensitivities of 85% and 88% and specificities of 96% and 97% for the internal carotid artery and the middle cerebral artery, respectively.
MR angiography is useful as the primary diagnostic tool for evaluating suspected intracranial steno-occlusive disease.
评估三维傅里叶变换时间飞跃磁共振血管造影术在检测颅内狭窄闭塞性疾病中的准确性。
131例患者（62例男性和69例女性，年龄6至77岁[平均53岁8个月]）接受了磁共振成像和传统血管造影检查，以评估可能存在的颅内血管疾病。共评估了502条动脉。由五名观察者以盲法对八个投影以及通过最大强度投影算法后处理的叠加图像进行了评估，并以传统血管造影作为标准。
共有32处狭窄闭塞性病变可供评估。汇总数据的受试者工作特征分析显示，颈内动脉和大脑中动脉的总体敏感度分别为85%和88%，特异度分别为96%和97%。
磁共振血管造影术作为评估疑似颅内狭窄闭塞性疾病的主要诊断工具很有用。
