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正常与异常的心脏功能取决于收缩心肌的生化代谢、电生理特性和细胞的存活。但测定活体内正常与异常的心肌中间代谢仍然很困难,一些无创性心脏检查方法如超声心动图、核素心室造影和心肌显象、X线CT和数控式减影血管造影(DSA)等主要是描述心脏或冠状动脉的解剖结构和心功能特点,并不能反应心肌的生化变化。正电子发射型断层显象至少在某种程度上可以满足上述要求,提供了一个新的技
Normal and abnormal heart function depends on the biochemical metabolism of contracted myocardium, electrophysiological properties and cell survival. However, it is still difficult to measure the normal and abnormal myocardial metabolism in vivo. Some noninvasive methods of cardiac examination such as echocardiography, radionuclide and myocardial imaging, X-ray computed tomography (CT) and digital subtraction angiography (DSA) Is to describe the anatomy of the heart or coronary arteries and cardiac function, and does not respond to changes in myocardial biochemistry. Positron emission tomography at least to some extent can meet the above requirements, providing a new technology