目的：探讨门控心肌灌注断层显像（GMPT）、平衡法心血池显像（GBPI）与心动超声（UCG）测定左室射血分数（LVEF）的差别。

Purpose: To compare gated myocardial perfusion tomography (GMPT), gated blood pool imaging (GBPI) and ultrasound cardiography (UCG) in left ventricular ejection fraction (LVEF) calculation.

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目的探讨不同扫查角度对彩色组织多普勒显像观察左室壁舒缩运动中心的影响。

Objective To determine the center of left ventricular(LV) segmental wall motion using color tissue Doppler imaging at various scanning angles.

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目的探讨组织速度显像(TVI)技术评价左室节段性室壁运动的可靠性。

Objective To evaluate the reliability of tissue velocity imaging (TVI) in quantitatively assessing left ventricular segmental wall function.

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