造影增强彩色多普勒时间-强度曲线观察肾血流灌注的实验研究

Experimental study of perfusion of normal kidneys of the rabbits by time-intensity curves with intravenous contrast-enhanced color Doppler imaging

目的 探讨超声随机配置的时间 -强度曲线软件对肾血流灌注的评价。方法 兔外周静脉团注造影剂“全氟显”后用彩色多普勒能量图和彩色多普勒血流显像连续采集肾彩色血流图像 ,随机配置软件显示时间 -强度曲线 ,调节时间轴上的“感兴趣线”作定量分析。结果 造影增强的时间 -强度曲线呈单峰状 ,上升支陡直 ,下降支平缓。结论 造影增强彩色多普勒血流显像和彩色多普勒能量图的时间

Objective To evaluate the value of the machine-drawn time-intensity curves with intravenous contrast-enhanced color Doppler imaging in study of perfusion of normal kidneys of the rabbits.Methods A series of sequent pictures of 16 normal kidneys of 8 rabbits with color Doppler flow imaging(CDFI) and color Doppler power imaging(CDPI) were collected,and time-intensity curves were drawn by the ultrasound instrument after intravenous administration of 'Quanfuxian' contrast medium.Quantitative analyses were done by moving the 'interest line'.Results The time-intensity curves showed as single apex with steep ascending and slowly descending branch after contrast enhancement.Conclusions The machine-drawn time-intensity curves with intravenous contrast-enhanced color Doppler imaging could efficiently show the perfusion of kidney.