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灌注是血流通过毛细血管网,将携带的氧和营养物质输送给组织细胞及其利用的过程。CT灌注是通过CT成像来评价毛细血管网灌注功能,通过局部灌注的测量可了解有关生理功能及能量代谢的情况。1991年Miles首先提出CT灌注,并先后应用于腹部实质性脏器的动物试验和临床应用的初步研究
Perfusion is the process by which blood flows through the capillary network, carrying oxygen and nutrients carried to the tissue cells and their utilization. CT perfusion is evaluated by CT imaging of capillary network perfusion function, through the measurement of local perfusion can understand the physiological functions and energy metabolism. In 1991 Miles first proposed CT perfusion, and has been applied to the abdominal abdominal organs of animal experiments and clinical preliminary study