A cornstarch-water slurry was driven by a pulsatile pump through tubing to simulate the blood flow within the heart, and the tubing was cyclically moved by a piston to simulate the heart motion.
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美
- 結果在模擬心臟運動(dòng)作用下，原來(lái)的模擬血流波形已不存在，代之以模擬心臟運動(dòng)和模擬血流按速度矢量相加規律所組成的復合波，而模擬心臟運動(dòng)所產(chǎn)生的多普勒頻移信號的振幅和頻率都未改變且與上述血流信號并存于頻譜中。
