, the time-intensity curve (TIC) of pass-door reactions both approximate to an exponential altenuation, and the peak intensity within the range of periods of 1-5s (SPL 10 dB) is 0.71 and 0.40, respectively.
Results The time-intensity curve (TIC) showed that the ar ea under the curve, the peak intensity (PI) and RI all had linear correlation w ith serum Cr levels, with the correlation coefficient 鉶f 0.978, 0.972 and 0.7 08 respectively (by SPSS10.0).
Methods:The change of PI,Tp and T 1/2 derived form MCE time intensity curve were observed in 10 hyperglycemia dogs and 10 control dogs after injecting acetylcholine(Ach)and nitroglycerin(NTG),meanwhile compared with myocardial blood flow(MBF)measured by radiolabled microspheres.
Objective:To detect the value of parameters of time intensity curve(TIC) with ventricular contrast and quantitative tissue velocity imaging(QTVI) in the quantitative assessment of right ventricular systolic function.
[Methods] Self-made contrast agent was injected via rabbit ear vein at a dose of 0.5 mL/kg, real-time abdominal aorta enhancement was observed by conventional imaging, and changes of time-intensity curves were quantitatively analyzed using triggered imaging by bolus injection and infusion (0.1 mL/s).
Methods Self-made contrast agent was injected via rabbit ear vein at a dose of 0.5 m1/kg,real-time abdominal aorta enhancement was observed by conventional imaging,and changes of time-intensity curves were quantitatively analyzed using triggered imaging by bolus injection and infusion (0.1 m1/s).
Methods:The grey scales of the hepatic parenchyma and the inferior vena cava were obtained in 10 rabbits before and after intravenously injection of the liposome contrast agent in dosage of 0 01ml/kg,and then the time-intensity curves were obtained based on the grey scales.
The purpose of our research is utilizing grey- harmonious contrast ultrasound combine with Time- Strength curve and compare with blood frequency chart character to analysis blood dynamics character of breast tumor ,At the same time ,We apply color Dopple contrst-ultrasound to evaluate the vascular morphology inside the tumor.