基于同步移相显微干涉的血红细胞形貌测量方法

血红细胞的形貌特征是医学领域对多种疾病进行预防和诊断的一项重要指标，提出一种同步移相显微干涉法实现对血红细胞形貌的动态测量。搭建了透射式显微干涉成像系统，测量了100 μm内径模拟微血管内、名义直径为7 μm～8 μm、高度最大值为2 μm的新西兰兔血红细胞，针对血红细胞所处的微血管环境提出了基于微血管相位相减的血红细胞形貌提取方法和成像放大率校正方法，实验得到模拟微血管内的血红细胞平均直径7.757 μm和平均最高高度2.022 μm，验证了本方法具有在体定量测量血红细胞形貌的潜力。

Profile measurement of red blood cells based on simultaneous phase-shifting microscopic interference

The profile of red blood cells is an important index for the prevention and diagnosis of various diseases in the medical field. A simultaneous phase-shifting microscopic interference method was proposed to realize the dynamic measurement of the profile of red blood cells. A transmission-type microscopic interference imaging system was set up to measure the red blood cells of New Zealand rabbit with a diameter of 7 μm~8 μm, and a maximum height of 2 μm in a simulated microvessel with an inner diameter of 100 μm. Aiming at the microvesse environment in which the red blood cells were located, a method of extracting the profile of red blood cells based on the phase subtraction of microvessels and a correction method of imaging magnification were proposed. The average diameter and maximum height of the red blood cells in the simulated microvessels are obtained by experiments, which are 7.757 μm and 2.022 μm, respectively. The potential of this method in vivo measurement of RBC profile has been verified.