A comparative detection of TCD and MRA and DSA on cerebral artery stenosis in patients with ischemic cerebrovascular disease

Objective:To explore the reliability of trans-craninal Doppler(TCD) and magnetic resonance angiograph(MRA) and digital subtraction angiography(DSA) in the diagnosis of cerebral artery stenosis.Methods:37 patients with ischemic cerebral vascular disease were analyzed and compared with the results of TCD and MRA with DSA.Results: 407 cerebral arteries were examined by the DSA and analyzed the existence of stenosis or occlusion of the artery was 106,the positive rate was 26.0%.With TCD,the existence of stenosis or occlusion of cerebral arteries has 62 checks in line with the DSA,the positive rate was 15.2%.With MRA,the existence of stenosis or occlusion has 79 checked in line with the DSA;the positive rate was 19.5%.The detection result of TCD and DSA has no statistical significance at cerebral artery stenosis(P0.05).The detection result of MRA and DSA has statistical significance at cerebral artery stenosis(P0.05).Conclusions: MRA,DSA both have high accuracy of detecting cerebral artery stenosis but TCD.They play a role in diagnosis of cerebral artery stenosis.