Purpose: To discuss the characters of DSA images in intracranial hemorrhage caused by thrombus of cerebralvein system.
目的：探讨以颅内出血为首发症状的脑静脉系统血栓患者的DSA影像特征。
2
Conclusion ct, MRI and DSA are the effective methods in the diagnosis of cerebral superficial cortical vein thrombosis, and its typical changes have crucial significance for the diagnosis.
结论CT、MRI及DSA是诊断大脑皮质浅静脉血栓形成的有效方法，其典型改变对诊断具有重要意义。
3
The prognosis is fairly bad when RI equals1or less than0.5. Conclusions:RI is a target reflecting the cerebralvein adjust. RI is the marker of cerebral ischemia.