In hepatic tumors, the increase of decibel in average gray scale were in <0, 8 0 to 0 and 7 cases > 0. In liver tissues of experimental animals, the average gray scale before and after angiography were .0±. and 78. ±. 0 respectively (P< 0.0 ).
In hepatic tumors, the increase of decibel in average gray scale were in <0, 8 0 to 0 and 7 cases > 0. In liver tissues of experimental animals, the average gray scale before and after angiography were .0±. and 78. ±. 0 respectively (P< 0.0 ).
肝肿瘤造影前后平均灰度值分贝数增加的情况为＜0有例、0～ 0有8例、＞ 0有7例； 实验动物肝组织超声造影前后的平均灰度值分别为．0±．、78． ±． 0，P值＜0．0。