Abstract:
Objective
To investigate the relationship between the characteristics of chronic obstructive pulmonary disease (COPD) and the obstructive pulmonary disease with transthoracic ultrasonography.
Methods
All fo 57 patients with stable COPD who were admitted to our hospital from June 2021 to June 2023 were selected to examine lung function by ultrasound elastography. According to the disease condition,21 cases of severe patients were divided into observation group and 36 cases of mild and moderate patients were divided into control group. The clinical data,lung function and transthoracic ultrasound elastography were compared between the two groups. Multivariate Logistic regression was used to analyze the correlation between the characteristics of transthoracic elastography and the severity of COPD.
Results:
There was no significant difference in age,blood sugar and other clinical data between the two groups (P>0.05). Intercostal muscle thickness index(ICMTei)(0.33±0.07) cm and intercostal muscle shear wave elastography(ICMswe)(0.35±0.08) cm in the observation group were lower than those in the control group ICMTei (0.42±0.10) cm (t=2.262,P=0.028),ICMswe(0.46±0.11) cm (t=2.649,P=0.011),diaphragmatic thickness at the end of inspiration(DTei) (27.71±4.13) kPa and diaphragmshear wave elastography( Dswe) (24.78±3.61) kPa in observation group were higher than DTei (22.19±3.58) kPa (t=3.553,P=0.001),Dswe (17.42±2.83)kPa (t=4.738,P=0.000)in control group. FEV1(1.13±0.12) L,FVC (1.65±0.26) L,FEV1/FVC (48.26±2.81)% in the observation group were lower than those in the control group FEV1(1.42±0.15)L (t=7.340,P=0.000),FVC(1.85±0.31)L (t=4.689,P=0.000),FEV1/FVC ((58.35±3.23)% (t=11.916,P=0.000). Multivariate Logistic regression analysis showed that ICMTei (OR=4.63×10-8) and ICMswe (OR=2.03×10-4) were protective factors for the severity of COPD. DTei (OR=1.437) and Dswe (OR=1.448) were risk factors for COPD severity. FEV1,FVC and FEV1/FVC were positively correlated with IICMTei and ICMswe (P<0.05),and negatively correlated with DTei and Dswe (P <0.05).
Conclusion
The characteristics of transthoracic elastography are correlated with the severity of COPD. DTei and Dswe are risk factors,ICMTei and ICMswe are protective factors.
Key words:
Chronic obstructive pulmonary disease,
Transthoracic ultrasound elastography,
State of the disease,
Multivariate Logistic regression analysis
Fengmei Fu, Fengkai Fang, Meichui Fu, Wuju Xie, Zhenliang Xu, Yanshen Hu. Correlation analysis of transthoracic ultrasound elastic imaging characteristics and disease conditions in patients with chronic obstructive pulmonary disease[J]. Chinese Journal of Lung Diseases(Electronic Edition), 2025, 18(02): 256-260.