2026 , Vol. 23 >Issue 01: 23 - 29
DOI: https://doi.org/10.3877/cma.j.issn.1672-6448.2026.01.004
生物声学脂肪分数对高甘油三酯血症患者肝脂肪变性定量分析的初步研究
通信作者:
张大鹍,Email:zdk002@163.comCopy editor: 汪荣
收稿日期: 2025-07-03
网络出版日期: 2026-04-22
基金资助
中央级公益性科研院所基本科研业务费专项资金资助(ZZ16-XRZ-022)
版权
Quantitative analysis of hepatic steatosis in patients with hypertriglyceridemia using ultrasound derived fat fraction: a preliminary study
Corresponding author:
Zhang Dakun, Email: zdk002@163.comReceived date: 2025-07-03
Online published: 2026-04-22
Copyright
探讨生物声学脂肪分数(UDFF)在不同程度高甘油三酯血症(HTG)患者肝脂肪变性定量评估中的价值。
收集2023年10月至2024年12月于中国中医科学院西苑医院就诊的156例HTG患者及40例健康对照者。收集患者的临床资料、总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)及脂肪肝超声分级、皮下脂肪厚度(SFT)、内脏脂肪厚度(VFT)、UDFF。根据TG水平将HTG患者分为TG边缘升高组(1.7≤TG<2.3 mmol/L)63例和TG升高组(2.3≤TG<5.7 mmol/L)93例。评估UDFF测值的操作者内部一致性,比较各组间UDFF差异,并分析其与临床指标的相关性。
UDFF测值的操作者内部一致性好(组内相关系数=0.971,P<0.001)。HTG组UDFF值显著高于对照组(11.0% vs 5.0%,P<0.001),UDFF随TG水平升高呈递增趋势:对照组5.0%<TG边缘升高组6.0%<TG升高组15.0%,两两比较差异均具有统计学意义(P<0.05)。HTG患者UDFF与脂肪肝分级、TG、VFT呈正相关(r=0.817、0.745、0.641,P<0.001),与HDL-C呈负相关(r=-0.546,P<0.001)。多元线性回归分析显示,脂肪肝分级(β=0.390)、TG(β=0.402)、VFT(β=0.170)和SFT(β=0.121)是UDFF的独立危险因素(R2=0.819)。
UDFF与HTG患者脂肪肝分级及代谢指标显著相关,可以早期识别并定量评估HTG患者的肝脂肪变性情况。
王元元 , 李昀霖 , 关晶波 , 孙敏 , 谢亚宁 , 张大鹍 , 张子浩 . 生物声学脂肪分数对高甘油三酯血症患者肝脂肪变性定量分析的初步研究[J]. 中华医学超声杂志(电子版), 2026 , 23(01) : 23 -29 . DOI: 10.3877/cma.j.issn.1672-6448.2026.01.004
To evaluate the value of ultrasound derived fat fraction (UDFF) in the quantitative assessment of hepatic steatosis in patients with varying degrees of hypertriglyceridemia (HTG).
A total of 156 HTG patients and 40 healthy controls who visited Xiyuan Hospital, China Academy of Chinese Medical Sciences from October 2023 to December 2024 were enrolled. Clinical data, total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), ultrasound grade of fatty liver, subcutaneous fat thickness (SFT), visceral fat thickness (VFT), and UDFF were collected. HTG patients were divided into two groups based on TG levels: borderline elevated TG group (1.7≤TG<2.3 mmol/L, n=63) and elevated TG group (2.3≤TG<5.7 mmol/L, n=93). The intra-observer consistency of UDFF measurements was evaluated, differences in UDFF were compared among groups, and its correlation with clinical indicators was analyzed.
The intra-observer consistency of UDFF measurements was excellent (intra-class correlation coefficient=0.971, P<0.001). The UDFF value in the HTG group was significantly higher than that of the control group (11.0% vs 5.0%, P<0.001). UDFF showed an increasing trend with rising TG levels: control group (5.0%) <borderline elevated TG group (6.0%)<elevated TG group (15.0%), with statistically significant differences in pairwise comparisons (P<0.05). In HTG patients, UDFF was positively correlated with fatty liver grade, TG, and VFT (r=0.817, 0.745, and 0.641, respectively; P<0.001) and negatively correlated with HDL-C (r=-0.546, P<0.001). Multiple linear regression analysis revealed that fatty liver grade (β=0.390), TG (β=0.402), VFT (β=0.170), and SFT (β=0.121) were independent risk factors for UDFF (R2=0.819).
UDFF is significantly correlated with the grade of fatty liver and metabolic indicators in HTG patients, enabling early identification and quantitative assessment of hepatic steatosis in this population.

表1 对照组与HTG组的临床资料与超声参数比较 |
| 资料 | 对照组(n=40) | HTG组(n=156) | 统计值 | P值 |
|---|---|---|---|---|
年龄(岁,![]() | 45.78±6.61 | 46.37±9.74 | t=0.458 | 0.648 |
| 性别[男,例(%)] | 17(42.5) | 87(55.8) | χ2=7.818 | 0.134 |
身高(cm,![]() | 166.18±6.40 | 167.69±8.34 | t=1.251 | 0.215 |
体重(kg,![]() | 63.65±9.89 | 74.56±14.38 | t=5.621 | <0.001 |
BMI(kg/m2,![]() | 22.95±2.74 | 26.40±4.22 | t=6.267 | <0.001 |
TC(mmol/L,![]() | 5.03±0.70 | 5.09±0.81 | t=0.465 | 0.642 |
TG(mmol/L,![]() | 1.08±0.47 | 2.90±1.08 | t=16.003 | <0.001 |
HDL-C(mmol/L,![]() | 1.23±0.42 | 1.18±0.39 | t=-0.762 | 0.047 |
LDL-C(mmol/L,![]() | 2.75±0.54 | 2.86±0.73 | t=0.881 | 0.379 |
SFT(cm,![]() | 2.05±0.68 | 2.49±0.82 | t=3.536 | 0.001 |
VFT(cm,![]() | 3.73±1.32 | 4.96±1.84 | t=3.978 | <0.001 |
| 脂肪肝分级[例(%)] | Z=-5.749 | <0.001 | ||
| 无 | 24(60.0) | 33(21.2) | ||
| 轻度 | 16(40.0) | 54(34.6) | ||
| 中度 | 0 | 33(21.2) | ||
| 重度 | 0 | 36(23.0) | ||
| UDFF[%,M(Q1,Q3)] | 5.0(4.0,6.0) | 11.0(6.0,17.0) | Z=-6.263 | <0.001 |
注:HTG为高甘油三酯血症;BMI为体质量指数;TC为总胆固醇;TG为甘油三酯;HDL-C为高密度脂蛋白胆固醇;LDL-C为低密度脂蛋白胆固醇;SFT为皮下脂肪厚度;VFT为内脏脂肪厚度;UDFF为生物声学脂肪分数 |
表2 对照组、TG边缘升高组、TG升高组的临床资料与超声参数比较 |
| 资料 | 对照组(n=40) | TG边缘升高组(n=63) | TG升高组(n=93) | 统计值 | P值 |
|---|---|---|---|---|---|
| 年龄(岁) | 45.78±6.61 | 46.67±10.19 | 46.17±9.47 | F=0.121 | 0.886 |
| 性别[男,例(%)] | 17(42.5) | 35(55.6) | 52(55.9) | χ2=2.253 | 0.324 |
身高(cm,![]() | 166.18±6.40 | 167.38±8.84 | 167.90±8.03 | F=0.651 | 0.522 |
体重(kg,![]() | 63.65±9.89 | 71.83±13.39 | 76.42±14.79 | F=12.619 | <0.001 |
BMI(kg/m2,![]() | 22.95±2.75 | 25.49±3.35 | 27.01±4.64 | F=15.115 | <0.001 |
TC(mmol/L,![]() | 5.03±0.70 | 4.98±0.83 | 5.16±0.78 | F=1.068 | 0.346 |
TG(mmol/L,![]() | 1.08±0.47 | 1.98±0.13 | 3.53±0.99 | F=19.648 | <0.001 |
HDL-C(mmol/L,![]() | 1.23±0.42 | 1.32±0.47 | 1.09±0.28 | F=7.270 | 0.001 |
LDL-C(mmol/L,![]() | 2.75±0.54 | 2.84±0.79 | 2.87±0.70 | F=0.421 | 0.657 |
SFT(cm,![]() | 2.05±0.68 | 2.11±0.68 | 2.75±0.80 | F=19.883 | <0.001 |
VFT(cm,![]() | 3.73±1.32 | 3.97±1.46 | 5.62±1.77 | F=16.895 | <0.001 |
| 脂肪肝分级[例(%)] | H=63.060 | <0.001 | |||
| 无 | 24(60.0) | 23(36.5) | 10(10.8) | ||
| 轻度 | 16(40.0) | 33(52.4) | 21(22.6) | ||
| 中度 | 0 | 5(7.9) | 28(30.0) | ||
| 重度 | 0 | 2(3.2) | 34(36.6) | ||
| UDFF[%,M(Q1,Q3)] | 5.0(4.0,6.0) | 6.0(5.0,9.0) | 15.0(11.0,24.0) | H=9.569 | <0.001 |
注:BMI为体质量指数;TC为总胆固醇;TG为甘油三酯;HDL-C为高密度脂蛋白胆固醇:LDL-C为低密度脂蛋白胆固醇:SFT为皮下脂肪厚度;VFT为内脏脂肪厚度;UDFF为生物声学脂肪分数;与对照组比较,aP<0.05;与TG边缘升高组比较,bP<0.05 |
表3 多元线性回归分析UDFF的危险因素 |
| 因素 | 非标准化系数 | 标准化系数 | t | P | VIF | R2 | 调整R2 | F | |
|---|---|---|---|---|---|---|---|---|---|
| B | 标准误 | β | |||||||
| 常数 | -8.096 | 1.131 | -7.157 | <0.001 | 0.819 | 0.814 | F=170.992 P<0.001 | ||
| TG | 3.236 | 0.412 | 0.402 | 7.857 | <0.001 | 2.191 | |||
| 脂肪肝分级 | 3.168 | 0.380 | 0.390 | 8.346 | <0.001 | 1.827 | |||
| VFT | 0.802 | 0.221 | 0.170 | 3.625 | <0.001 | 1.837 | |||
| SFT | 1.288 | 0.426 | 0.121 | 3.025 | 0.003 | 1.340 | |||
注:UDFF为生物声学脂肪分数;TG为甘油三酯;VFT为内脏脂肪厚度;SFT为皮下脂肪厚度 |
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