Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
Department of Radiology, Northeastern Ohio Medical University, Youngstown, OH, USA.
Ultrasound Med Biol. 2024 Aug;50(8):1088-1098. doi: 10.1016/j.ultrasmedbio.2024.03.014. Epub 2024 Apr 23.
The World Federation for Ultrasound in Medicine and Biology (WFUMB) has promoted the development of this document on multiparametric ultrasound. Part 2 is a guidance on the use of the available tools for the quantification of liver fat content with ultrasound. These are attenuation coefficient, backscatter coefficient, and speed of sound. All of them use the raw data of the ultrasound beam to estimate liver fat content. This guidance has the aim of helping the reader in understanding how they work and interpret the results. Confounding factors are discussed and a standardized protocol for measurement acquisition is suggested to mitigate them. The recommendations were based on published studies and experts' opinion but were not formally graded because the body of evidence remained low at the time of drafting this document.
世界超声医学和生物学联合会（WFUMB）推动了这份关于多参数超声的文件的发展。第 2 部分是关于使用可用工具定量测量超声肝脂肪含量的指南。这些工具包括衰减系数、反向散射系数和声速。它们都使用超声束的原始数据来估计肝脂肪含量。本指南旨在帮助读者了解它们的工作原理和解释结果。本文还讨论了混杂因素，并提出了标准化的测量采集方案以减轻其影响。这些建议是基于已发表的研究和专家意见提出的，但没有进行正式分级，因为在起草本文件时，证据仍然不足。
