Diagnostic Value of CT and Magnetic Resonance Imaging in Patients with Pulmonary Nodules
Objective:To analyze the results of applying CT versus magnetic resonance imaging in patients with pulmonary nodules.Methods:68 patients with lung nodules admitted to the hospital from December 2019 to June 2022 were selected as research subjects,and were divided into CT group and magnetic resonance imaging group according to different examination modalities.All patients underwent CT and magnetic resonance imaging.The specificity,sensitivity,accuracy,positive predictive value,and negative predictive value of the two examination modalities were compared using the final pathologic diagnosis as the gold standard.Results:Clinicopathologic examination of 68 patients with pulmonary nodules revealed 58 positive patients and 10 negative patients.CT examination revealed positive lung nodules in 56 cases and negative in 12 cases,and the positive detection rate of lung nodules was 82.35%.Magnetic resonance imaging was positive for lung nodules in 45 cases and negative in 23 cases,and the positive detection rate of lung nodules was 66.18%.The positive detection rate of CT examination was higher than that of magnetic resonance imaging,and the difference was statistically significant(χ2=4.655,P＜0.05).The detection rate of tuberculosis ball and squamous carcinoma in the CT examination results was statistically significant compared with that of magnetic resonance imaging(χ2=4.098,4.225;P＜0.05).There was no statistically significant difference in the comparison of inflammatory nodule and adenocarcinoma detection results(χ2=0.605,0.763;P＞0.05).The sensitivity of CT examination in diagnostic efficacy was 83.87%,accuracy was 79.41%,specificity was 33.33%,positive predictive value was 92.90%and negative predictive value was 33.33%.Magnetic resonance imaging had a sensitivity of 72.73%,an accuracy of 70.59%,a specificity of 61.54%,a positive predictive value of 88.90%,and a negative predictive value of 61.50%.Conclusion:CT and magnetic resonance imaging(MRI)examinations applied to patients with pulmonary nodules can accurately diagnose the nature of nodules through multi-parameter quantitative diagnostic imaging measures such as the concentration of different basal substances,and at the same time provide morphological and functional information about the benignness and malignancy of pulmonary nodules and different types of pathology,which can help to quickly identify the benignness and malignancy of pulmonary nodules at an early stage in the clinic,reduce the burden of examination on the patients,and improve the prognostic results.
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