Awai K, Ito K, Katsuta S, Fujikawa K, Nakamura S, Ichiki T, Yamane K, Fujie M, Hasegawa K, Nishida O
Department of Radiology, Hiroshima School of Medicine.
Rinsho Hoshasen. 1990 Jul;35(7):847-53.
CT-functional images (CT-FI's) were created from Xe-dynamic CT data of 10 patients with chronic pulmonary emphysema and 6 volunteers with normal lung. In CT-FI's of normal lungs, the values of washin and washout parameter of outer zone were larger than those of inner zone. In CT-FI's of chronic pulmonary emphysema, the values of washin parameter of inner zone were larger than those of outer zone and the value of washout parameter of outer zone were larger than those of inner zone. CT-FI's proved to helpful in evaluating the axial distribution of ventilation dynamics in chronic pulmonary emphysema.
CT功能图像（CT-FI）由10例慢性肺气肿患者和6例肺功能正常的志愿者的氙动态CT数据生成。在正常肺的CT-FI中，外带的洗入和洗脱参数值大于内带。在慢性肺气肿的CT-FI中，内带的洗入参数值大于外带，外带的洗脱参数值大于内带。CT-FI被证明有助于评估慢性肺气肿通气动力学的轴向分布。
