CAJ | 학술논문

目的探讨研究经颅多普勒超声（TCD）对颈内动脉重度狭窄或闭塞的诊断价值。方法21例颈内动脉重度狭窄或闭塞患者，行TCD检查后1周内行DSA或磁共振血管成像检查，将其颈内动脉影像学结果进行比较。结果 TCD对颈内动脉狭窄的敏感性为92.00%，特异性为94.12%，假阳性率为5.88%，假阴性率为8.00%，诊断准确率为92.86%；且TCD对颈内动脉重度狭窄或闭塞的诊断准确率为80.95%。将正常的血管剔除后，其对狭窄程度的诊断符合率为69.23%。结论 TCD可作为颈内动脉狭窄的一种筛查手段，但对于颈内动脉狭窄程度的判断，TCD仍存在局限性。
목적탐토연구경로다보륵초성（TCD）대경내동맥중도협착혹폐새적진단개치。방법21례경내동맥중도협착혹폐새환자，행TCD검사후1주내행DSA혹자공진혈관성상검사，장기경내동맥영상학결과진행비교。결과 TCD대경내동맥협착적민감성위92.00%，특이성위94.12%，가양성솔위5.88%，가음성솔위8.00%，진단준학솔위92.86%；차TCD대경내동맥중도협착혹폐새적진단준학솔위80.95%。장정상적혈관척제후，기대협착정도적진단부합솔위69.23%。결론 TCD가작위경내동맥협착적일충사사수단，단대우경내동맥협착정도적판단，TCD잉존재국한성。
Objective To evaluate the value of TCD in diagnosis of internal carotid artery severe stenosis or occlusion. Methods Twenty-one patients with internal carotid artery severe stenosis or occlusion were examined by TCD,then DSA or MRA within one week. The results of TCD and DSA (or MRA) were compared. Results The sensitivity of TCD in diagnosis of carotid stenosis was 92.00%,the specificity was 94.12%.The false positive rate was 5.88%. The false negative rate was 8.00% and the diagnostic accuracy was 92.86%. The accuracy of TCD in diagnosis of internal carotid artery severe stenosis or occlusion was 80.95%. The accuracy of TCD in diagnosis of stenosis degree was 69.23%. Conclusion TCD is able to be used as a screening method in diagnosis of internal carotid artery stenosis,but for judgement of internal carotid artery stenosis degree,TCD still has its limitations.