磁共振血管成像对成年人烟雾病的诊断价值

Diagnostic value of craniocerebral magnetic resonance angiography on adult Moyamoya disease

目的探讨磁共振血管成像(MRA)对成年人烟雾病的诊断价值。方法对20例成年人烟雾病患者进行DSA和MRI、MRA检查。结果DSA检查显示20例患者均有颈内动脉系统末端狭窄或闭塞及脑基底部烟雾状血管网形成。MRI显示11例为缺血性病变,9例为颅内出血性病变。MRA显示20例患者均有脑动脉狭窄或闭塞,16例(80%)见丘脑-基底节区有烟雾状的异常血管网,异常血管网检出率与DSA相比差异无统计学意义。结论MRA可以显示成年烟雾病患者脑动脉狭窄或闭塞及脑内异常血管网,且无创伤性,对成年人烟雾病有较高的诊断价值。

Objective To investigate the diagnostic value of the cranioccrebral magnetic resonance angiography （MRA） in adult moyamoya disease. Methods 20 adult patients with Moyamoya disease were examined by DSA, MRI and MRA. Results DSA showed that the ending of internal carotid artery system were stenosis or occlution, and the fog-like blood vessel networks at base of skull were observed in the 20 patients. By MRI, the cerebral ischemical changes were found in 11 cases, intracerebral hamrrahge was found in 9 cases. MRA showed that cerebral artery were stenosis or obstruction in all of the 20 patients, 16 cases （80%） with the fog-like blood vessel net in the thalatnusbasal ganglia region. The detectable rate of abnormal cerebral basal vascular network was no statistical difference between DSA and MRA. Conclusions MRA can provide more information of cerebral artery straitness or obstruction and fog-like blood vessel net in the adult patients with Moyamoya disease, and without hammerless. MRA has a very importent value of diagnosis in the adult moyamoya disease.