实用肝脏病杂志 ›› 2023, Vol. 26 ›› Issue (4): 476-479.doi: 10.3969/j.issn.1672-5069.2023.04.006

• 实验性肝炎 • 上一篇    下一篇

超声剪切波弹性成像技术评估CCl4诱导的肝损伤大鼠肝纤维化程度效能研究

石莹, 吕永燕, 杨增娣, 刘波, 娄方明, 徐军, 童清平   

  1. 230001 合肥市 安徽医科大学解放军临床学院(石莹,童清平);解放军联勤保障部队第901医院超声诊断科(吕永燕,杨增娣,童清平);感染病科(刘波,娄方明);病理科(徐军)
  • 收稿日期:2022-12-20 出版日期:2023-07-10 发布日期:2023-07-21
  • 通讯作者: 童清平,E-mail:tongqp168@163.com
  • 作者简介:石莹,男,28岁,硕士研究生

Evaluation of significant liver fibrosis by ultrasonic shear wave elastography in rats with carbon tetrachloride-induced liver injury

Shi Ying, Lyu Yongyan, Yang Zengdi, et al   

  1. Department of Ultrasound, 901st Hospital, Clinical Medical College, Affiliated to Anhui Medical University,Hefei 230001,Anhui Province, China
  • Received:2022-12-20 Online:2023-07-10 Published:2023-07-21

摘要: 目的 探讨剪切波弹性成像(SWE)评估肝损伤大鼠肝纤维化程度的价值。 方法 将52只SD大鼠随机分为对照组12只和实验组40只,采用CCl4腹腔注射诱导肝损伤模型,分别实验4 w、6 w、8 w和10 w,后者每个时段10只。在实验结束前,在麻醉状态下采用SWE行肝脏硬度检测(LSMs),常规进行血生化和血液检查,计算天冬氨酸氨基转移酶(AST)/血小板(PLT)比率指数(APRI)和肝纤维化-4因子指数(FIB-4)。在处死动物后立即行LSMd检测,常规进行肝组织病理学检查。应用受试者工作特征曲线(ROC)评估各指标诊断显著性肝纤维化的效能。 结果 肝组织病理学检查诊断大鼠F0/F1期非显著性肝纤维化18只,≥ F2显著性肝纤维化30只;非显著性肝纤维化组APRI评分为(0.05±0.02),显著低于显著组【(0.14±0.12),P<0.05】,FIB-4评分为(0.13-100±0.09-100),显著低于显著组【(0.25-100±0.13-100),P<0.05】,LSMs为(5.2±1.7))kPa,显著低于显著组【(9.7±2.8)kPa,P<0.05】,LSMd为(3.6±0.8))kPa,显著低于显著组【(8.8±1.7)kPa,P<0.05】;LSMs和LSMd诊断显著性肝纤维化的曲线下面积分别为0.91和0.93,显著大于APRI(0.75,P<0.05)或FIB-4(0.69,P<0.05),其诊断的敏感度和特异度分别为76.7%和87.5%,及85.7%和92.0%。 结论 采用SWE检测肝硬度评估肝损伤大鼠显著性肝纤维化具有较高的诊断效能,操作简便,准确率高,可重复性强,值得探讨应用。

关键词: 肝纤维化, 剪切波弹性成像, 肝脏硬度检测, 诊断, 大鼠

Abstract: Objective The aim of this study was to explore the evaluation of significant liver fibrosis (SLF) by ultrasonic shear wave elastography (SWE) in rats with carbon tetrachloride(CCl4)-induced liver injury. Methods 52 male SD rats were randomly divided into control group (n=12) and experimental group (n=40). The liver injury model was induced by intraperitoneal injection of carbon tetrachloride for 4, 6, 8 and 10 weeks, with 10 rats sacrificed at each time. At end of each experiment, the rats were anesthetized for liver stiffness measurement (LSMs) by SWE. The blood routine and serum biochemical parameters were obtained for calculation of APRI and FIB-4. The LSM immediately after dead (LSMd) was performed again after execution. The liver fibrosis, steatosis and inflammatory activity were evaluated by pathological examination. The receiver operating characteristic (ROC) curve was applied to evaluate the performance of parameters in the diagnosis of SLF. Results The pathological examination showed F0/F1 non-significant LF(NSLF) in 18 rats, and > F2 SLF in 30 rats; the APRI score in rats with NSLF was (0.051±0.023), significantly lower than [(0.135±0.117), P<0.05], and the FIB-4 score was (0.132-100±0.088-100), significantly lower than [(0.245-100±0.125-100), P<0.05], the LSMs was(5.2±1.7)kPa, significantly lower than [(9.7±2.8)kPa, P<0.05] and the LSMd was (3.6±0.8) kPa, significantly lower than [(8.8±1.7) kPa, P<0.05] in rats with SLF; the areas under the ROC curve (AUC) by LSMs and LSMd in predicting SLF were 0.91 and 0.93, significantly higher than 0.75 by APRI or 0.69 by FIB-4, with the sensitivities and specificities of 76.7% and 87.5%, and 85.7% and 92.0%, respectively. Conclusion The SWE technique has a high clinical value in evaluating LF in rats with CCl4-induced liver injury, with the advantages of non-invasive, simple and repeatable feature.

Key words: Liver fibrosis, Shear wave elastography, Liver stiffness measurement, Diagnosis, Rats