摘要
目的:通过比较脑血流灌注显像与灌注加权磁共振成像的病变检出率,探讨两种方法在诊断缺血性脑血管病中的价值。方法:将78例缺血性脑血管病患者分为单侧血管病变组和双侧血管病变组,分别对两组患者的两种检查结果进行对比分析。结果:通过比较78例患者两种显像结果发现,脑血流灌注显像及灌注加权磁共振成像的阳性检出率分别为91.03%、76.92%(P=0.016),差异有显著性。单侧血管病变组患者的脑血流灌注显像及PWI的阳性检出率分别为88.37%、79.07%(P=0.243),差异无显著性。双侧血管病变组患者的脑血流灌注显像及PWI的阳性检出率分别为94.29%、74.29%(P=0.022),差异有显著性。结论:在单侧脑血管病变组,脑血流灌注显像与PWI敏感程度相当;而在双侧脑血管病变组,脑血流灌注显像较PWI敏感。
Objective：To explore the clinical value of cerebral blood flow perfusion image and MR PWI in patients with ischemic cerebrovasoular diseases by comparing the positive rate of the two methods in patients with isohemic cerebrovasoular diseases. Methods： Seventy-eight patients with ischemic cerebrovasoular disease were chosen as objects. All patients were divided into two groups. 43 patients with single-side vessels involed were in group 1 and 35 patients with both-sides vessels involed were in group 2. We compared the results of patient in two groups who underwent cerebral blood flow peffusion image and PWI. To compare the positive rate of the two methods. Results： The positive rate of cerebral blood flow perfusion image and PWI were 91.03% and 76.92% （ P = 0. 016）respectively in 78 patients and there were significant difference among them. The positive rate of cerebral blood flow perfusion image and PWI were 88.37% and 79.07% respectively in 43 patients with single-side vessels involved. The comparison of brain cerebral flow perfusion image and PWI showed that there were no significant difference（ P = 0.243）. The positive rate of cerebral blood flow perfusion image or PWI in 35 patients with both-sides vessels involved were 94.29%, 74.29% respectively and there were significant difference among them （ P = 0.022）. When we combined cerebral blood flow perfusion image with PWI, the positive rate were 98.72%. The comparison of cerebral blood flow perfusion image and PWI with the result showed that there were significant difference （ P = 0. 029; P = 0. 001 ）. Conclusion： Cerebral blood flow perfusion image was as sensitive as PWI in correctly diagnosing cerebrovasoular disease in 43 patients with single-sides vessels involved and was more sensitive than PWI in 35 patients with both-sides vessels involved. Cerebral blood flow perfusion image was sensitive in diagnosing ischemie cerebrovasoular diseases in 78 patients. Combining the two methods, the positive rate can he raised.
出处
《医学影像学杂志》
2006年第10期1020-1023,共4页
Journal of Medical Imaging
关键词
脑血管病
体层摄影术
发射型计算机
磁共振成像
灌注
Cerebrovascular disease
Tomography, emission-computed
Magnetic resonance imaging
Perfusion
