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1972年 CT 的出现,给神经放射线学的诊断,带来了巨大的变革。现在许多颅内疾病的诊断,CT 已成为首选的检查方法。然而脑动脉瘤的确诊,仍然有赖于脑血管造影。因为脑动脉瘤本身,除非巨大者以外,一般不能被 CT 检查发现。但是,作为实质摄影的 CT,在诊断脑动脉瘤破裂引起的血肿、脑室扩大,脑血管痉挛及脑梗塞等颅内继发性病变方面所发挥的作用,又是脑血管造影所无法比拟的。上述那些脑部继发性病变,能够左右患者的临床症状及预后。因此可以说,CT 作为脑动脉瘤破裂的检查方法,具有极大的临床价值。以下简述脑动脉瘤破裂的 CT 检查所见。
The appearance of CT in 1972 brought great changes to the diagnosis of neuroradiology. Now many of the diagnosis of intracranial disease, CT has become the preferred method of examination. However, the diagnosis of cerebral aneurysms still depends on cerebral angiography. Because of the aneurysm itself, it is generally not detectable by CT unless it is huge. However, as a real imaging CT, cerebral angiography is unmatched in the diagnosis of secondary intracranial lesions such as hematoma, ventricular enlargement, cerebral vasospasm and cerebral infarction caused by rupture of cerebral aneurysm. Secondary brain lesions of those above, can affect the clinical symptoms and prognosis of patients. So we can say that CT as a check of cerebral aneurysm rupture has great clinical value. The following summary of cerebral aneurysm rupture seen by CT examination.