Jackson V P, Kuehn D S, Bendick P J, Becker G J, Holden R W, Dilley R S
J Ultrasound Med. 1985 May;4(5):239-49. doi: 10.7863/jum.1985.4.5.239.
Duplex sonography is a relatively new technique for noninvasive evaluation of the extracranial carotid arteries. In a prospective, double-blind study of 453 vessels (229 patients) over a one-year period, an excellent correlation was found with intravenous digital subtraction angiography (DSA) in 66.3 per cent of vessels, good correlation in an additional 28.4 per cent of vessels, and poor correlation in only 5.3 per cent. Duplex was compared with conventional biplane angiography in 86 vessels (45 patients); there was excellent correlation in 71 per cent, good correlation in 20 per cent, and poor agreement in 9 per cent of vessels. Duplex sonography is a highly accurate method of evaluating the cervical carotid system and it has a complementary role with DSA.
双功超声检查是一种用于无创评估颅外颈动脉的相对新技术。在一项为期一年的对453条血管（229例患者）的前瞻性双盲研究中，发现66.3%的血管与静脉数字减影血管造影（DSA）具有极佳的相关性，另有28.4%的血管相关性良好，只有5.3%的血管相关性较差。对86条血管（45例患者）的双功超声检查与传统双平面血管造影进行了比较；71%的血管相关性极佳，20%的血管相关性良好，9%的血管一致性较差。双功超声检查是评估颈部颈动脉系统的一种高度准确的方法，并且与DSA具有互补作用。
