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| Application of Serum miR-146a Level Combined with CT Examination in the Early Diagnosis of Lung Cancer in High-risk Population |
| DAI Feng-xia, JIN Qiang |
| Department of Imaging Center,Shangluo International Medical Center Hospital,Shangluo Shaanxi 726000 |
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Abstract 【Objective】 To explore the value of serum microribonucleic acid-146a (miR-146a) level combined with computerized tomography (CT) in the early diagnosis of lung cancer in elderly high-risk populations. 【Methods】 A total of 124 elderly patients at high risk of lung cancer,who were admitted to Shangluo International Medical Center Hospital from October 2019 to December 2020,were selected as the research subjects. Serum miR-146a measurement and CT examinations were performed. According to the diagnosis of clinical pathological results,patients were divided into the positive group (diagnosed as lung cancer patients) and negative group (no lung cancer patients). The serum miR-146a levels were compared between the positive group and the negative group. The CT examination results were compared with the pathological diagnosis results. The receiver operating characteristic curve (ROC) was drawn and the area under the curve (AUC) was used to evaluate the diagnostic efficacy of serum miR-146a combined with CT in the elderly high-risk population of lung cancer. 【Results】 Among the 124 elderly patients with high risk of lung cancer,78 were positive and 46 were negative. The level of serum miR-146a in the positive group was higher than that in the negative group (t=21.512,P<0.001). A total of 72 positive patients were detected by CT examination:the positive coincidence rate,negative coincidence rate and total coincidence rate were 84.62%,86.96%,and 85.48%,respectively. ROC analysis showed that the best cut-off of serum miR-146a for the diagnosis of elderly high-risk patients with lung cancer was 1.42,and the AUC of serum miR-146a combined with CT examination in the diagnosis of elderly high-risk patients with lung cancer was 0.906,which was higher than that of serum miR-146a and CT examination alone (Z=3.021,P=0.003; Z=2.289,P=0.022). 【Conclusion】 The diagnostic efficacy of serum miR-146a combined with CT scans is relatively high in elderly high-risk populations of lung cancer. It can be used as an important reference index for clinical evaluation.
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Received: 13 April 2022
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. [J]. JOURNAL OF CLINICAL RESEARCH, 2023, 40(5): 796-798. |
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2023, Vol. 40 
