Keski-Nisula L, Haapanen A, Ala-Ketola L
Ann Clin Res. 1984;16 Suppl 40:23-6.
Duplex ultrasound examination of vessels includes both high resolution imaging in real time mode and rangegated Doppler with spectral analysis. Velocity spectra are calculated, and blood velocity ratios are determined. The duplex ultrasound examination seems to be a suitable method for screening of patients for angiography.
血管的双功超声检查包括实时模式下的高分辨率成像和带频谱分析的距离选通多普勒检查。计算速度频谱，并确定血流速度比值。双功超声检查似乎是一种适合筛选患者进行血管造影的方法。
