Goldstein A
Department of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan 48201.
J Ultrasound Med. 1991 Mar;10(3):125-39. doi: 10.7863/jum.1991.10.3.125.
A detailed testing protocol has been developed for string phantom quality assessment performance measurements of Doppler equipment. General procedures have been developed for accurate setup of the string phantom prior to measurements, independent calibration of the string velocity, and compensation for degassed water in the tank. Detailed testing procedures were developed for important Doppler parameters. The dependence of spectral broadening on Doppler angle is demonstrated and a procedure given for minimizing its effect on Doppler velocity measurements. Doppler velocity calibration to better than 4% has been demonstrated even with degassed water in the tank with six high quality commercial pulsed Doppler systems.
已制定了详细的测试方案，用于对多普勒设备的弦体模质量评估性能进行测量。已制定了一般程序，用于在测量前精确设置弦体模、独立校准弦体速度以及补偿水箱中的除气水。针对重要的多普勒参数制定了详细的测试程序。展示了频谱展宽对多普勒角度的依赖性，并给出了将其对多普勒速度测量的影响降至最低的程序。即使水箱中装有除气水，使用六个高质量的商用脉冲多普勒系统也已证明多普勒速度校准精度优于4%。
