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Objective: to DSA as the gold standard to assess the diagnostic value of ultrasound, MRA and CTA responsibility vascular disease patients with cerebrovascular disease; MRI and SPECT, to evaluate the diagnostic value of both acute cerebral infarction. : 1. Collect clinical carotid ultrasound, MRA, CTA and DSA in patients with cerebrovascular disease examination data, statistical the various checks detection of cerebrovascular and neck blood vessels narrow the number and extent of, and DSA respectively compared with the study: ultrasound, MRA and CTA diagnosis of carotid artery system and the vertebrobasilar system sensitivity, specificity and coincidence rate; Comparison of ultrasound, MRA, CTA diagnosis of carotid artery system and the reliability of vertebrobasilar vascular lesions; ultrasound, MRA, CTA diagnosis of cerebral vascular stenosis, occlusion of the sensitivity, specificity, in line with the rate. Collection in clinical brain MRI and SPECT examination and diagnosis of patients with acute cerebral infarction, statistics infarction and compared to calculate the value of χ ~ 2. Results: 1. Ultrasound diagnosis of internal carotid artery system sensitivity, specificity, in line with the rate is 50.00%, 98.80%, 92.71%; diagnosis of the vertebrobasilar the sensitivity, specificity, in line with the rates were 81.48%, 97.74%, 95.00%. MRA diagnosis of internal carotid artery system sensitivity, specificity, in line with the rate of 54.17%, 98.81%, 93.23%; diagnosis of the vertebrobasilar the sensitivity, specificity, in line with the rate of 85.19%, 97.74%, 95.63%. CTA diagnosis of internal carotid artery system sensitivity, specificity, in line with the rate of 100.00%, 99.19%, 99.24%; diagnosis of the vertebrobasilar the sensitivity, specificity, in line with the rate of 100.00%, 98.00%, 98.33%. 2 ultrasound diagnosis of internal carotid artery and vertebrobasilar artery stenosis comparison, chi 2 = 6.15, P lt; 0.05, significant difference between ultrasound diagnostic the vertebrobasilar stenosis reliability is higher than the neck within the arterial system; MRA diagnosis of internal carotid artery and vertebrobasilar artery stenosis comparison, chi 2 = 6.04, P lt; 0.05, both significant difference between MRA diagnosis of vertebrobasilar stenosis reliability in the internal carotid artery; CTA diagnosis of internal carotid artery and vertebral basilar artery stenosis comparison, chi 2 = 0.48, P gt; 0.05, between the two was no significant difference; DSA diagnosis of internal carotid artery and vertebral basilar artery system vascular stenosis comparison, chi 2 = 1.35, P gt; 0.05, between the two was no significant difference. The 3 ultrasound diagnosis of cerebral vascular stenosis sensitivity, specificity, in line with the rate of 65.23%, 98.39%, 94.03%; diagnosis of cerebral vascular occlusion sensitivity, specificity, in line with the rate of 80.00%, 100.00%, 99.72%. MRA diagnosis of cerebral vascular stenosis sensitivity, specificity, the coincidence rate is 69.57%, 98.39%, 94.32%; diagnosis of cerebral vascular occlusion sensitivity, specificity, in line with the rate of 80.00%, 100.00%, 99.72%. CTA diagnosis of cerebral vascular stenosis sensitivity, specificity, the coincidence rate was 100.00%, 98.27%, 98.48%; diagnosis of cerebral vascular occlusion sensitivity, specificity, in line with the rate of 100.00%, 100.00%, 100.00%. 4.MRI compared with SPECT diagnosis of acute cerebral infarction, the chi ~~ value of 22.53, p lt; 0.001, significant difference between SPECT acute cerebral infarction detection rate was significantly higher than the MRI. Conclusion: the reliability of ultrasound and MRA diagnosis of vertebrobasilar vascular disease is higher than the system of internal carotid artery; was no difference between the CTA and DSA diagnosis of internal carotid artery and vertebrobasilar vascular disease. 2.DSA is the gold standard for the diagnosis of cerebrovascular disease, but its high cost, trauma, time-consuming, risky, and not be used as the preferred method of diagnosis of cerebrovascular disease, treatment may be preferred; CTA is a minimally invasive checks, the accuracy of the diagnosis of cerebrovascular disease than ultrasound and MRA, lower than the DSA; MRA is noninvasive and relatively inexpensive, but the noise, a long time, more accurate than ultrasound diagnosis of cerebrovascular disease, lower than the CTA, DSA ; ultrasound has a convenient, safe, and low cost, can be used as a screening method for diagnosis of cerebrovascular disease. (3) the diagnosis of acute cerebral infarction in time SPECT is superior to MRI; MRI is superior to SPECT in space.
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