超声波检查对肝脏纤维化分期的诊断价值

目的 了解超声波检查对早期肝硬化的诊断价值及其与肝纤维化程度的相关性。方法２６３例慢性乙型病毒性肝炎患者经皮肝脏穿刺活检术行病理组织学检查，同时行空腹肝脏Ｂ型超声波检查肝硬化声像、门静脉主干和脾静脉宽度及脾脏肿大，检查结果经 ｔ检验、ｘ２检验确定统计学意义。结果 ２６３例患者中 ６０例为早期肝硬化，超声波检查对早期肝硬化的诊断灵敏度 ５２．５％，特异度 ８８．３％，误诊率 １１．７０％，漏诊率 ４７．５％，约登指数 ０．５０８；肝纤维化Ｓ１、Ｓ２、Ｓ３、Ｓ４期的门静脉主干宽度分别为（１０．９３± １．２５）ｍｍ、（１１．３５±１．０６）ｍｍ、（１１．２９± １．５２）ｍｍ及（１１．４８±１．２５）ｍｍ，其中以与Ｓ１比较差异有显著意义（Ｐ＜０．０５）；脾静脉宽度分别（６．５１８±２．０３３）ｍｍ、（７．１９０±１．５６９）ｍｍ、（７．４４４±１．８０５）ｍｍ及（８．４０６±２．２２７）ｍｍ，其中 Ｓ４与 Ｓ２比较差异有显著意义（Ｐ＜０．０５）；脾脏肿大发生率随肝纤维化程度加重而增加。结论 超声波检查对早期肝硬化的诊断敏感度亟待提高，不足以作为早期肝硬化的常用诊断方法；门静脉主干、脾静脉宽度及脾脏肿大发生率与肝纤维化程度呈正

Diagnostic value of ultrasonic examination in patients with different stages of liver fibrosis

OBJECTIVE: To discuss the diagnostic value of ultrasonic examination in patients with early liver cirrhosis and the relation with different stages of liver fibrosis. METHODS: In the series, 263 patients with chronic hepatitis B were under taken liver biopsy and ultrasonic examination of type B for determination of liver cirrhosis images, width of the main portal vein and the splenic vein, tumefaction of the spleen. Data were analysed statistically. RESULTS: Sixties of 263 patients were diagnosed as early liver cirrhosis. The diagnostic sensitivity, specificity, misdiagnostic rate, missed diagnostic rate, and Jonden's index of ultrasonic examination for early liver cirrhosis were 52.5%, 88.3%, 11.7%, 47.5%, and 0.508, respectively. The width of the main portal vein with liver fibrosis of S1, S2, S3, and S4 were 10.93 mm +/- 1.25 mm, 11.35 mm +/- 1.06 mm,11.29 mm +/- 1.52 mm, and 11.4 8mm +/- 1.25 mm, respectively with statistic difference between S4 and S1 (P=0.03). The width of the spleen vein of S1, S2, S3, and S4 were 6.518 mm +/- 2.033 mm, 7.190 mm +/- 1.569 mm, 7.444 mm +/- 1.805 mm and 8.406 mm +/- 2.227 mm, respectively with statistic difference between S4 and S2 (P=0.035). The incidence of tumefaction of the spleen was increased with the degree of liver fibrosis. CONCLUSIONS: The diagnostic sensitivity of ultrasonic examination for early liver cirrhosis is low. The width of the main portal vein, the spleen vein and the incidence of tumefaction of the spleen are related with the degree of liver fibrosis. The regeneration node of liver cirrhosis may contribute to the development of portal hypertension.