Spectral CT multi-parameter imaging for diagnosing bronchial anthracofibrosis complicated with active pulmonary tuberculosis
10.13929/j.issn.1003-3289.2025.09.015
- VernacularTitle:能谱CT多参数成像判断支气管色素沉着纤维化合并活动性肺结核
- Author:
Jingjing YANG
1
;
Xiuli WU
1
;
Liping ZHANG
1
;
Baosheng HUANG
1
Author Information
1. 河西学院附属张掖人民医院医学影像科,甘肃张掖 734000;河西学院医学影像研究所,甘肃张掖 734000
- Publication Type:Journal Article
- Keywords:
bronchial diseases;
fibrosis;
tuberculosis,pulmonary;
tomography,X-ray computed
- From:
Chinese Journal of Medical Imaging Technology
2025;41(9):1526-1530
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of spectral CT multi-parameter imaging for diagnosing bronchial anthracofibrosis(BAF)complicated with active pulmonary tuberculosis.Methods Totally 77 patients with BAF complicated with atelectasis were retrospectively enrolled.According to undergoing anti-tuberculosis treatment or not during hospitalization,26 patients complicated with active pulmonarg tuberculosis were divided into group A(n=26),while 51 cases without active pulmonarg tuberculosis were divided into group B.Signs indicating active pulmonary tuberculosis(i.e.tree-in-bud sign or centrilobular nodules)on chest spectral CT images were analyzed.Non-enhanced CT(NECT)values,single-energy CT values at 40 keV(CT40 kev)and 70 keV(CT70 kev),as well as effective atomic number(Zeff),iodine concentration(IC),calcium concentration(CC)and hydroxyapatite concentration(HAP)in the arterial phase and venous phase of enhancement at the site of bronchial obstruction and in subcarinal lymph nodes were measured.the slope of spectral line(λ40-70keV)was calculated and compared between groups.Receiver operating characteristic(ROC)curve was plotted,and the area under the curve(AUC)was used to evaluate the efficacy of the above parameter alone and their combinations for diagnosing BAF complicated with active pulmonarg tuberculosis.Results The displaying rate of active pulmonary tuberculosis CT signs in group A was higher than that in group B(P=0.005).NECT values,enhanced venous phase CT40kev,λ40-70 kev,as well as Zeff,IC,CC and HAP at the site of bronchial obstruction in group A were all lower than those in group B(all P＜0.05).The AUC of active pulmonary tuberculosis CT signs for assessing BAF complicated with active pulmonary tuberculosis was 0.659,of the combination of CT quantitative parameters at the site of bronchial obstruction was 0.769,while of the combination of CT signs and CT quantitative parameters was 0.825,higher than of active pulmonary tuberculosis CT signs alone(P＜0.05).Conclusion Spectral CT multi-parameter imaging could be used to effectively diagnose BAF complicated with active pulmonary tuberculosis.
