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| Diagnostic Value of Low-Dose CT Thin-Slice Technology on Small Pulmonary Nodules and Its Guiding Significance on Lymph Node Dissection |
| Han Baoli, Cui Zhiyong, Jiang Weiqiang |
| Department of Medical Imaging,Xuchang Central Hospital affiliated to Henan University of Science and Technology,Xuchang 461000,China |
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Abstract Objective To investigate the diagnostic value of low-dose CT thin-slice technology on small pulmonary nodules and its guiding significance on lymph node dissection. Methods A retrospective analysis was performed on 82 patients with small pulmonary nodules admitted to.All patients underwent low-dose and conventional-dose CT thin-slice technology.According to the different doses,they were divided into the experimental group（low-dose CT scanning technology）and the control group（conventional-dose CT scanning technology）.The qualitative diagnosis status,morphological characteristics,dose-length product and weighted CT dose index were compared between the two groups of patients with small pulmonary nodules. Results There were no significant differences in the the proportions of lung cancer,lung metastases,inflammatory nodules,granulomatous lesions,tuberculosis proliferation,difficulty of diagnosis,burrs,air bronchogram,calcification,cavities,lobulation and uneven density in the experimental group compared with those in the control group（P>0.05）.The dose-length product and weighted CT dose index of the experimental group were lower than those of the control group（P<0.05）. Conclusion In the diagnosis process of patients with small pulmonary nodules,low-dose and conventional-dose CT scanning technology both have relatively consistent detection effects in terms of qualitative diagnosis and morphological characteristics,and both can provide guidance for lymph node dissection,but the former one has relatively lower radiation dose and higher safety.
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Received: 10 September 2020
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2021, Vol. 41 
