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B超能显示肝内1cm以上的占位病灶,但对其性质较难鉴别,利用B超引导肝穿针吸细胞学检查,具有定位准确、阳性率高的优点,1987年以来,我院对40例B超疑为肝恶性肿瘤病人进行了该项检查,现报道如下。 方法与结果 用日本ALOKa—SSD256型B超诊断仪,穿刺探头频率3.5MHZ;国产细钢针长17cm,外径0.6mm,内径0.4mm。患者取平卧位或左侧卧位,穿刺区常规消毒,局麻后,将穿刺针经探头导向,在荧光屏临视下将针刺入占位病灶处。一般选择最短垂直径路,但穿刺针至少经过1cm正常肝组织再进入占位病灶。取出针芯,在维持负压状态下用力吸取有颗粒血性液体置玻片上,涂片染色镜检。
B-mode ultrasound can display lesions occupying more than 1cm in the liver, but its nature is difficult to distinguish. The use of B-ultrasound-guided hepatic needle aspiration cytology examination has the advantages of accurate positioning and high positive rate. Since 1987, our hospital has The 40 cases of B-suspected liver cancer patients underwent the examination and are reported below. Methods and Results The Japan ALOKA-SSD256 type B-ultrasound diagnostic instrument was used, and the frequency of the puncture probe was 3.5MHZ; the length of the domestically produced fine steel needle was 17cm, the outer diameter was 0.6mm, and the inner diameter was 0.4mm. The patient takes a supine position or a left lateral decubitus position, and is routinely disinfected in the puncture area. After the local anesthesia, the puncture needle is guided by the probe, and the needle is inserted into the place of lesion under the circumstance of the fluorescent screen. Generally choose the shortest vertical path, but the puncture needle at least 1cm normal liver tissue and then enter the lesion. Take out the needle core, and forcefully draw a bloody liquid granular slide on the slide to maintain the negative pressure. Smear stain microscopy.