摘要
目的 研究肝癌内部及周边的血流信号及频谱规律。方法 肝癌肿块 75个 ,观察血流形态 ,测量平均彩色像素密度 (MCD)、收缩期峰值流速 (PS)、阻力指数 (RI)并进行统计学处理。结果 ①肿块内部血流分支状及穿入性PS值最高 ,分支状及篮网状RI值最高 (P <0 .0 1)。②肿块周边PS值分支状最高 ,其次是弧形 ,星点状最低 (P <0 .0 5 ) ,RI值各组之间差异无显著性意义。③树枝状血流PS值从主干到分支 ,最后到末梢依次减低 ,RI值反之。④肿块大小与PS正相关 (P <0 .0 5 ) ,与RI无相关性 (P >0 .0 5 )。⑤肿瘤的MCD与PS及RI均无相关性 (P >0 .0 5 )。结论 肝癌肿块的血流参数与肿瘤血管的形态、分级特征及肿块大小密切相关。
Objective To study the regularity of blood type and Doppler parameters at the interior and surrounding of the hepatic carcinoma.Methods Seventy-five masses with blood flow signals were selected.The size,mean color density (MCD),flood flow type and Doppler parameters including velocity of peak systolic (PS) and resistance index (RI) were studied.Results ①In the interior of masses,the PS of branch and insert types was the highest,and the RI of branch and net types was the highest (P< 0.01 ).② At the surrounding,the PS of branch (or circle) type was the highest,and then was the arc type,and lastly was the dot type (P< 0.05 ).But the RI had no difference between above groups.③In the branch type of blood flow,PS at trunk was the highest,and then at branch,and lastly at tip.The RI was on the contrary.④ There was marked difference between PS and the size of masses,and no difference between RI and the size of masses.⑤There was no difference between the MCD and PS,neither between MCD and RI in total(P> 0.05 ).Conclusions The parameter is associated with the blood type and grade closely in hepatic carcinoma.
出处
《中华超声影像学杂志》
CSCD
2003年第11期668-671,共4页
Chinese Journal of Ultrasonography
