应用动物模型探讨声脉冲辐射力成像技术的影响因素

摘要

Objective To analyze the influence factors of the acoustic radiation force impulse in animal models. Methods SO times were measured in each animal model group of all 7 groups, observing the numbers of success of each group, analyzing the effects of fat thickness, ribs, angle and probe pressure on detection success rate. Results Fat thickness, vertical or parallel to ribs and detection angle for injection showed no statistical significance on the detection success rate (p>0.05), while the influence of probe pressure showed statistical significance(p<0.01). Conclusion The influence of probe pressure showed statistical significance on the success rate of acoustic radiation force impulse.%目的 应用动物模型分析影响声脉冲辐射力成像技术探测成功率的因素.方法 应用7组动物模型,每组测量50次,观察每组成功次数,分析脂肪厚度、肋骨、角度及压力对探测成功率的影响.结果 脂肪厚度、与肋骨垂直或平行、探测入射角度与探测成功率的影响没有统计学意义(P＞0.05),探头加压对探测成功率的影响有显著统计学意义(P＜0.01).结论 探头加压对声脉冲辐射力成像技术探测成功率的影响有显著统计学意义.