Assessment value of HRCT for the condition of CTD-ILD and its relationship with abnormal ANA
10.3969/j.issn.1672-8270.2024.10.011
- VernacularTitle:高分辨率CT对结缔组织病间质性肺病的病情评估价值及与抗核抗体异常的关系
- Author:
Xiang DING
1
;
Xiaojun LI
;
Yuhui ZHANG
Author Information
1. 亳州市人民医院风湿免疫科 亳州 236800
- Keywords:
High-resolution computed tomography(HRCT);
Connective tissue disease(CTD);
Connective tissue disease-Interstitial lung disease(CTD-ILD);
Antinuclear antibody(ANA)
- From:
China Medical Equipment
2024;21(10):56-61
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate assessment value of high-resolution computed tomography(HRCT)for the condition of patients with connective tissue disease(CTD)combined with interstitial lung disease(ILD)and its relationship with the abnormalities of antinuclear antibody(ANA).Methods:A total of 60 CTD-ILD patients who hospitalized in the Department of Rheumatology of the People's Hospital of Bozhou from January 2020 to June 2023 were collected,and they were divided into positive ANA group(33 cases)and negative ANA group(27 cases)according to whether ANA was positivity.All patients underwent HRCT examination and ANA level test,and the lung HRCT scores of them were obtained by lung function assessment.The receiver operating characteristic(ROC)curve was adopted to analyze the diagnostic value of lung HRCT score for CTD-ILD,and Spearman correlation analysis was adopted to assess the correlation between the complicated ILD and the abnormality of ANA level in patients with CTD.Results:In 60 CTD patients,29 cases had interlobular septal thickening,and 25 cases had ground-glass-like change,and 13 cases existed grid shadow,and 10 cases had bronchial vascular bundle thickening,and patients with the honeycomb lung and who with nodular foci were all 6 cases,and 5 cases had mosaic infusion,and 3 cases had lung consolidation.There were significant differences in ANA level and HRCT score of lung among different patients with different characteristics of HRCT images(F=7.115,178.080,P<0.05),respectively.In addition,the order of ANA levels from high to low was lung consolidation,honeycomb lung,mosaic perfusion,ground-glass-like change,bronchial vascular bundle thickening,grid shadow,nodular foci and interlobular septal thickening.Lung HRCT score[(4.67±1.02),ANA level(60.14±10.01)units]of positive ANA group were significantly higher than that[(2.12±1.03),ANA level(7.13±1.13)]of negative ANA group,and the difference was statistically significant(t=23.753,27.333,P<0.05).The area under curve(AUC)of ROC curve of lung HRCT score,ANA alone and the combination of them were 0.765,0.618 and 0.797 in diagnosing CTD-ILD,respectively,and all of them were>0.5,and the AUC values of lung HRCT score and the combined diagnosis were between 0.7-0.9.The results of the Spearman-correlation analysis showed that there was a positive correlation between lung HRCT score and ANA(r=0.463,P<0.001).Conclusion:The HRCT examination and lung HRCT score are helpful to assess the CTD-ILD condition,and patient with higher lung HRCT score has more severe CTD-ILD condition and higher abnormality of ANA.There is a positive correlation between lung HRCT score and ANA abnormality.
