首页> 外文期刊>Ultrasound in Medicine and Biology >The B-Mode Image-Guided Ultrasound Attenuation Parameter Accurately Detects Hepatic Steatosis in Chronic Liver Disease
【24h】

The B-Mode Image-Guided Ultrasound Attenuation Parameter Accurately Detects Hepatic Steatosis in Chronic Liver Disease

机译:B模式图像引导的超声衰减参数精确地检测慢性肝病中的肝脏脂肪变性

获取原文
获取原文并翻译 | 示例
           

摘要

The purpose of our study was to evaluate the diagnostic accuracy of the ultrasound-guided attenuation parameter (UGAP) for the detection of hepatic steatosis in comparison with the controlled attenuation parameter (CAP), using histopathology as the reference standard. We prospectively analyzed 163 consecutive chronic liver disease patients who underwent UGAP, CAP, computed tomography and a liver biopsy on the same day between April 2016 and July 2017. Radiofrequency signals corresponding to the images were compensated by the reference signal previously measured from the uniform phantom with known attenuation (0.44 dB/cm/MHz). The attenuation coefficient was calculated from the signals’ decay slope. The median attenuation coefficient values in patients with S0 (n?=?62), S1 (n?=?63), S2 (n?=?23) and S3 grade (n?=?15) were 0.485, 0.560, 0.660 and 0.720, respectively. Significant correlations were found between attenuation coefficient and percentage steatosis, CAP values and liver-to-spleen computed tomography attenuation ratio (p< 0.001). The areas under the receiver operating characteristic curve of UGAP for identifying ≥S1, ≥S2 and ≥S3 were 0.900, 0.953 and 0.959, respectively, which were significantly better than the results obtained with CAP for identifying ≥S2 and ≥S3. In conclusion, UGAP had high diagnostic accuracy for detecting hepatic steatosis in patients with chronic liver disease.
机译:我们研究的目的是评估超声引导衰减参数(UGAP)的诊断准确性,用于检测肝硬化,与受控衰减参数(帽)相比,使用组织病理学作为参考标准。我们在2016年4月和2017年7月期间,我们前瞻性地分析了163名接受UGAP,CAP,计算机断层扫描和肝活检的患者。通过先前从均匀幻像中测量的参考信号补偿对应于图像的射频信号的射频信号具有已知衰减(0.44dB / cm / MHz)。从信号衰减斜率计算衰减系数。 S0(n?=Δ62),S1(n≤=Δ63),s2(n≤=Δ23)和s3等级(n≤=Δ15)的中值衰减系数值为0.485,0.560,0.660分别为0.720。在衰减系数和脂肪变性百分比之间发现显着的相关性,帽值和肝转液计算断层衰减率(P <0.001)。用于识别≥S1,≥S2和≥S3的UGAP的接收器操作特性曲线下的区域分别为0.900,0.953和0.959,显着优于用帽识别≥S2和≥S3获得的结果。总之,UGAP对慢性肝病患者检测肝脏脂肪变性具有高诊断准确性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号