The application value of ultrasonic shear wave elastography in the assessment of occupational chronic obstructive pulmonary disease patients
Objective To explore the application value of ultrasonic shear wave elastography(SWE)in the assessment of occupational chronic obstructive pulmonary disease patients.Methods 89 patients with occupational chronic obstructive pulmonary disease were selected and divided into a mild-to-moderate group(55 patients)and a severe group(34 patients)according to the results of pulmonary function tests.Both groups underwent ultrasonic shear wave elastography.Respiratory muscle parameters[intercostal muscle thickness at end-inspiratory(ICMTei),shear wave elastography of intercostal muscle(ICMswe),diaphragm thickness at end-inspiration(DTei),shear wave elastography of diaphragm(Dswe)]were compared between the two groups,and the receiver operating characteristic(ROC)curves were plotted to analyze the value of the ICMswe,Dswe,and combined test in the diagnosis of severe occupational chronic obstructive pulmonary disease.The ultrasonic shear wave elastography imaging in the patients with different degrees of severity was analyzed.Results The severe group had ICMswe of(26.63±2.24)kPa and Dswe of(23.12±2.24)kPa,which were higher than(23.24±2.15)and(16.81±1.43)kPa in mild-to-moderate group(P<0.05).ROC curve showed that the area under the curve(AUC)of ICMswe,Dswe and combined test in the diagnosis of severe occupational COPD were 0.857,0.854 and 0.964,respectively,and the combined test had the highest value.During ultrasonic shear wave elastography,the color on the image can show the change of tissue hardness.Due to the low hardness of respiratory muscle in mild and moderate patients,it is mostly light green;in severe patients,it is mostly yellow green.Conclusion Ultrasonic shear wave elastography is of high value in the assessment of the condition of patients with occupational chronic obstructive pulmonary disease,and can accurately identify severe patients,which can help to guide clinical improvement of treatment plan and achieve stable control of the disease.
Occupational chronic obstructive pulmonary diseaseUltrasonic shear wave elastographyDisease assessmentApplication value