Delcker A, Diener H C
Neurologische Universitätsklinik, Essen.
Ultraschall Med. 1992 Oct;13(5):213-20. doi: 10.1055/s-2007-1005313.
In a prospective study 451 patients were examined with extracranial continuous-wave (CW) Doppler sonography, transcranial Doppler sonography and color coded duplex sonography in order to evaluate the diagnostic accuracy of the three methods for vertebral artery pathology (hypoplasia, proximal and distal stenosis and occlusion). Color duplex sonography was used as the reference method. CW-Doppler sonography (mastoidal slope) had a sensitivity of 100% and a specificity of 27% for the detection of pathological changes in vertebral arteries (VA). For suboccipital transcranial Doppler sonography these values were 38% and 58%. Extracranial Doppler sonography and transcranial Doppler sonography are often unsuitable for differentiating between proximal stenosis and hypoplasia of VA. Transcranial Doppler sonography of the terminal segments of VA resulted in normal flow parameters in 27% of cases with proximal stenosis and in 50% in cases of proximal occlusion. Flow was normal in these particular cases owing to a more distal collateralisation of the VA. The terms "hypoplasia" and "asymmetric" of VA are discussed.
在一项前瞻性研究中，对451例患者进行了颅外连续波（CW）多普勒超声检查、经颅多普勒超声检查和彩色编码双功超声检查，以评估这三种方法对椎动脉病变（发育不全、近端和远端狭窄及闭塞）的诊断准确性。彩色双功超声检查用作参考方法。CW多普勒超声检查（乳突斜坡）检测椎动脉（VA）病变的敏感性为100%，特异性为27%。枕下经颅多普勒超声检查的这些值分别为38%和58%。颅外多普勒超声检查和经颅多普勒超声检查通常不适用于区分VA的近端狭窄和发育不全。VA终末段的经颅多普勒超声检查显示，在27%的近端狭窄病例和50%的近端闭塞病例中血流参数正常。在这些特定病例中血流正常是由于VA更远端的侧支循环。文中讨论了VA的“发育不全”和“不对称”这两个术语。
