目的：建立慢性心肌缺血大鼠动物实验模型，探讨动物模型构建的关键技术点。

AIM: to establish a rat model of chronic myocardial ischemia and probe into the experimental techniques for constructing the animal models.

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目的：研究骨髓干细胞心肌内注射对慢性心肌缺血患者心肌灌注及左室功能的影响。

Objective: To investigate the effect of intramyocardial bone marrow cell injection on myocardial perfusion and LV function in patients with chronic myocardial ischemia.

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目的：建立心肌慢性缺血动物模型，探讨超声背向散射积分（IBS）和多普勒组织成像（DTI）技术检测慢性心肌缺血的价值。

Objective: To establish porcine chronic ischemic myocardium model and to evaluate ultrasonic integrated backscatter(IBS) and Doppler tissue imaging(DTI) in detecting this model.

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