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肝脏针刺活检的临床应用已有一百余年。但由于针外径较粗面不宜穿刺过深,且取材仅占肝脏的1/50,000,原发性或转移性肝癌等局灶性病变的检出率较低。细胞学检查对肝脏恶性肿瘤的检出有一定优越性。为减少粗针活检的并发症并准确针对病变部位取材,发展了影像技术引导下的肝脏细针抽吸活检(fine needle aspitarion biopsy FNAB)。方法可采用核素扫描、超声显像、CT或血管造影引导。核素扫描引导需先取得正侧位扫描图象,确定穿刺部位后在X线透视下穿刺取材。由于不能在穿刺当时定位,定位亦不够精确,现已较少采用。超声引导可在穿刺当时定位,且具有以下优点:可显示病变的确切范围;可区别
Clinical application of liver acupuncture biopsy has been more than a hundred years. However, because the outer diameter of the needle should not be punctured too deep, and the material only accounted for 1 / 50,000 of the liver, primary or metastatic liver cancer and other focal lesion detection rate is low. Cytological examination of liver malignancies have some advantages. In order to reduce the complication of needle biopsy and to obtain the exact location of the lesion, a video-guided fine needle aspitarion biopsy FNAB was developed. Methods can be radionuclide scanning, ultrasound imaging, CT or angiography guidance. Radionuclide scanning must first obtain a positive lateral scan image to determine the puncture site after X-ray puncture material. Because can not locate at the time of puncture, positioning is not precise enough, now less used. Ultrasound-guided positioning at the time of puncture, and has the following advantages: to show the exact extent of the lesion; distinguishable