兔VX2移植性肝癌血管造影

目的研究兔VX2肝癌血管造影表现.方法34只新西兰大白兔开腹直视下肝左中叶瘤组织块接种VX2肿瘤,接种后第3周直视下穿刺右侧股动脉进路行腹腔动脉-肝动脉造影.结果6只兔数字电影方式(DC)腹腔动脉造影不能清晰显示肿瘤血管与肿瘤染色征象;28只兔数字减影方式(DSA)腹腔动脉造影,都能清晰显示肿瘤血管与肿瘤染色征象.兔肝VX2肿瘤典型血管造影征象表现为肿瘤呈膨胀性生长,供血动脉环绕肿瘤呈握拳状、抱球状、环圈状,从环绕的肿瘤主干血管上发出或长或短的细小芽状、根状、丝状的增生血管从周边向中心推进,显影的周边血管密度明显大于肿瘤中心,形成薄壁、厚壁、玉佩状等形状的圆形或椭圆形周边深染中心相对淡染的肿瘤染色结节;≥1cm的肿瘤结节染色完整、边缘清晰,当肿瘤较小时结节呈团片状染色,边缘欠清晰.结论兔肝VX2肿瘤为富血供性肿瘤,肿瘤周边部血供比中心部丰富,腹腔动脉造影足以显示清晰典型征象.

The Angiography of Rabbit Implanted VX2 Liver Cancer

Objective To research the angiographic manifestations of rabbit implanted VX_2 liver carcinoma.Methods 34 New Zealand big white rabbit were implanted VX_2 tumor pieces under orthophoria into liver left middle segment.Angiography of coeliac artery-hepatic artery catheterization via right femoral artery was performed at the third week after inoculation.Results The tumor blood vessel and tumor stain in 6 rabbit could be not showed clearly by digital cinematography mode but which could be showed in 28 rabbit by digital subtraction mode.The tumor angiographic signs included:dilating growth of tumor,the feeding arteria surrounding the tumor surface were resemblance to the clenched fist,embraced globosity and wreath in form;many slender vessels from feeding arteria appeared as small bud form,root form and filose form pushed forward to the center from the surface of tumor.The tumor vascular density in periphery was higher than that in center and formed circular or oval tumor stain which more denser at periphery than center.The tumor node stain was complete with definite margin when tumor size was large or equal to 1 cm in diameter,and the tumor stain appeared as clump with indefinit margin.Conclusion There are abundant vascularity for rabbit implanted liver VX_2 tumor,and more abundant at periphery part than center part, coeliac artery catheterization angiography can show the typical manifestations of tumor clearly.