肝脏 ›› 2022, Vol. 27 ›› Issue (9): 986-989.

• 肝癌 • 上一篇    下一篇

T2WI序列图像纹理分析对肝硬化浸润性肝癌和局灶性融合性纤维化的鉴别诊断价值

胡维杰, 陈小萍, 吴荣刚, 马臻雏   

  1. 215101 江苏 苏州市中西医结合医院影像科
  • 收稿日期:2021-11-30 出版日期:2022-09-30 发布日期:2022-10-27
  • 基金资助:
    苏州市科技局民生科技(科技示范工程)(SS201815)

The value of T2WI sequence image texture analysis in the differential diagnosis of hepatic infiltrating hepatocellular carcinoma and focal fusion fibrosis

HU Wei-jie, CHEN Xiao-ping, WU Rong-gang, MA Zhen-chu   

  1. Department of Radiology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu 215101, China
  • Received:2021-11-30 Online:2022-09-30 Published:2022-10-27

摘要: 目的 研究T2加权图像(T2WI)序列图像纹理分析对肝硬化浸润性肝癌和肝脏局灶性融合性纤维化的鉴别诊断价值。方法 回顾性分析2018年8月至2021年8月苏州市中西医结合医院收治的肝硬化浸润性肝癌患者50例和肝脏局灶性融合性纤维化患者32例的临床资料。所有患者均于手术标本病理诊断前1周行MRI检查,并接受T2WI序列纹理分析。选取病灶最大层面轴位T2WI图像,并经Image J图像处理软件手动勾画感兴趣区(ROI),提取空间灰度共生矩阵(GLCM)纹理参数(熵、能量、相关性、对比度、逆差距)和直方图(Histogram)纹理参数(平均值、峰度、偏度)。对两组GLCM和Histogram纹理参数进行比较,并采用受试者工作特性曲线(ROC)评价其对肝硬化浸润性肝癌与肝脏局灶性融合性纤维化的鉴别诊断效能。结果 肝硬化浸润性肝癌组熵为7.04±0.29,高于局灶性融合性纤维化组的(6.70±0.60),能量和相关性分别为(15.30±7.19)×10-4和(15.41±7.28)×10-4,低于局灶性融合性纤维化组的(25.02±11.37)×10-4和(33.65±14.40)×10-4,差异均有统计学意义(P<0.05);两组对比度、逆差距、平均值、峰度、偏度差异无统计学意义(P>0.05)。熵、能量、相关性对肝硬化浸润性肝癌与肝脏局灶性融合性纤维化均有一定鉴别诊断效能,曲线下面积(AUC)分别为0.672、0.701、0.812。结论 GLCM纹理参数熵、能量、相关性可以鉴别肝硬化浸润性肝癌与肝脏局灶性融合性纤维化,值得临床进一步验证。

关键词: T2加权图像, 纹理分析, 肝硬化浸润性肝癌, 局灶性融合性纤维化

Abstract: Objective To study on the differential diagnosis value of T2 weighted image (T2WI) sequence image texture analysis (TA) of magnetic resonance imaging (MRI) in the differential diagnosis of hepatic infiltrative hepatocellular carcinoma (iHCC) and hepatic focal fusion fibrosis (FFF). Methods Fifty cirrhotic patients with invasive liver cancer were enrolled in the iHCC group. Thirty-two patients with focal fusion fibrosis with complete preoperative magnetic resonance imaging (MRI) data and pathological confirmation of their surgical specimens were enrolled in the FFF group. The clinical data of both groups of patients were collected and retrospectively analyzed. All patients underwent MRI examination and TA sequence analysis on T2WI at one week before the operation. The maximum axial T2WI images of the lesion were selected, and the region of interest (ROI) was manually sketched by Image J Image processing software. The spatial gray co-occurrence matrix (GLCM) texture parameters (entropy, energy, correlation, contrast, deficit distance) and Histogram texture parameters (mean, kurtosis, skewness) were extracted. GLCM and Histogram texture parameters were compared between the two groups. Receiver operating characteristic curve (ROC) was used to evaluate their efficiencies in differential diagnosis of invasive liver cancer and focal hepatic fusion fibrosis. Results The entropy was 7.04±0.29 in iHCC group, which was significantly higher than that of 6.70±0.60 in FFF group (P<0.05). The energy and correlation of the iHCC group were (15.30±7.19) ×10-4 and (15.41±7.28) ×10-4, which were significantly lower than those of (25.02±11.37) ×10-4 and (33.65±14.40) ×10-4 in FFF group, respectively (P<0.05). There were no significant difference in contrast, deficit distance, mean, kurtosis and skewness parameters between the two groups (P>0.05). The entropy, energy and correlation parameters have had certain efficiencies in the differential diagnosis of invasive liver cancer and liver focal fusion fibrosis, and the areas under curves (AUC) were 0.672, 0.701 and 0.812, respectively. Conclusion The entropy, energy and correlation of GLCM texture parameters under T2WI TA are useful in distinguishing infiltrating liver cancer and focal fusion liver fibrosis, which are worthy of further clinical verification.

Key words: T2-weighted image, Texture analysis, liver cirrhosis with infiltrative hepatocellular carcinoma, Focal fusion fibrosis