Ackerstaff R G, Eikelboom B C, Hoeneveld H, Moll F L, de Vries A R
Clin Neurol Neurosurg. 1982;84(4):213-20. doi: 10.1016/0303-8467(82)90022-1.
Ultrasonic duplex scanning of the internal carotid artery is highly accurate in the detection of disease as expressed in its sensitivity of 0.97 and specificity of 0.82 for haemodynamic significant lesions. For the detection of obstructions of 20% or over, these parameters are 0.94 and 0.77 respectively. The most striking problem is the poor classification of normal vessels and those with minor lesions. The duplex scanning overestimates the degree of disease in these cases. For the external carotid artery the method differentiates reasonably well between non-haemodynamic and haemodynamic significant lesions.
对于血流动力学有显著意义的病变，颈动脉超声双功扫描在疾病检测方面具有很高的准确性，其检测血流动力学有显著意义病变的灵敏度为0.97，特异性为0.82。对于检测20%及以上的阻塞，这些参数分别为0.94和0.77。最突出的问题是正常血管和有轻微病变血管的分类较差。在这些情况下，双功扫描高估了疾病的程度。对于颈外动脉，该方法在区分非血流动力学有显著意义病变和血流动力学有显著意义病变方面表现得相当不错。
