Horikoshi T, Fukamachi A, Nishi H, Fukasawa I
Department of Neurosurgery, Nasu Neurosurgical Center, Tochigi, Japan.
Neuroradiology. 1994 Apr;36(3):203-7. doi: 10.1007/BF00588131.
The purpose of this study was to investigate the reliability of magnetic resonance angiography (MRA) for detection of intracranial aneurysms. Ninety-six consecutive patients who underwent both MRA using the three-dimensional time-of-flight technique (3D TOF) with the rephase/dephase subtraction method and conventional angiography were reviewed. MRA showed 22 aneurysms in 19 patients, and conventional angiography 28 aneurysms in 23 patients. The sensitivity of MRA was thus 79% for aneurysms in 83% of patients. MRA showed no aneurysm in 67 of 73 patients without aneurysms; its specificity was therefore 92%. The 6 false positive interpretations were suspected internal carotid artery aneurysms.
本研究的目的是调查磁共振血管造影（MRA）检测颅内动脉瘤的可靠性。回顾性分析了96例连续患者，这些患者均接受了采用重相位/去相位减法的三维时间飞跃技术（3D TOF）的MRA检查以及传统血管造影检查。MRA显示19例患者中有22个动脉瘤，传统血管造影显示23例患者中有28个动脉瘤。因此，MRA对83%患者的动脉瘤的敏感性为79%。MRA在73例无动脉瘤的患者中有67例未显示动脉瘤；因此其特异性为92%。6例假阳性诊断为疑似颈内动脉瘤。
