这个词是什么意思？
Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D015150 · MeSH 2026。
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