Evaluation of the Diagnostic Criteria of Three-Dimentional Transcranial Doppler for Cerebrovascular Diseases

The intracranial arteries of 132 cases with cerebrovascular diseases （GVD） were studied by using 3D-TGD apparatus, of which 68 cases were also investigated by DSA.The results showed that 56 cases were diagnosed as AVM, 23 cases as cerebral infarction （CI）, 30 cases as hypertension with cerebrovascular stenosis, 4 cases as moyamoya diseases, and 1 case as cerebral aneurysm. The diagnostic consistency between TOD and DSA was 96.5％ in AVM, 92％ in CI, 73.1％ in hypertension, 80％ in moyamoya disease, and 33.3％ in aneurysm respectively. The charateristic changes and the criteria of TCD for cerebrovascular diseases were studies.