论文部分内容阅读
人的正常生理活动及各种病理活动都与体内血流变化密切相关,因此获取活体组织微循环血流的灌注信息一直是医学影像学关注的热点。组织发生病理改变时,其血流动力学变化往往早于形态学改变,普通CT主要反映解剖形态变化,而动态CT灌注成像为研究生理及病理状态下的血流动力学提供
Human normal physiological activity and a variety of pathological activities are closely related to changes in blood flow in vivo, so to obtain the perfusion information of living tissue microcirculation blood flow has been a hot topic in medical imaging. When the pathological changes occur, the changes of hemodynamics tend to be earlier than the morphological changes. The general CT mainly reflects the anatomical changes, while the dynamic CT perfusion imaging is to study the hemodynamics in physiological and pathological conditions