Application value of CT angiography and 3D reconstruction in the qualitative diagnosis of space-occupying lung lesions
Objective:To analyze the diagnostic value of CT angiography combined with 3D reconstruction in benign and malignant lung space-occupying lesions.Methods:The clinical data of 120 patients with benign and malignant lung lesions confirmed by biopsy or surgical pathological examination admitted to the Medical Imaging Center of our hospital from January 2020 to June 2022 were retrospectively collected.CT angiography combined with 3D reconstruction were performed in all patients for tissue biopsy or surgical pathology.The patients were divided into malignant group and benign group according to the results of biopsy or surgical pathological examination.To analyze the diagnostic efficacy of CT angiography and CT angiography combined with 3D reconstruction in benign and malignant lung lesions.Kappa was used to test the consistency between CT angiography combined with 3D reconstruction and surgical examination or tissue biopsy.To evaluate the diagnostic value of CT angiography combined with 3D reconstruction in space-occupying lung lesions.Results:Surgical examination or tissue biopsy showed 67 benign lesions and 53 malignant lesions.The sensitivity and accuracy of CT angiography in detecting benign and malignant lung lesions were significantly lower than that of CT angiography combined with 3D reconstruction(P<0.05).After Kappa consistency test,the results of CT angiography showed strong consistency with those of pathological examination(Kappa=0.867).The results of CT angiography combined with 3D reconstruction were strongly consistent with those of pathological examination(Kappa=0.949).The number of reconstructed pulmonary bronchial arteries in the malignant group was significantly higher than that in the control group,and the internal diameter of left and right bronchial arteries in the benign group was significantly higher than that in the benign group(P<0.05).Conclusion:CT angiography combined with 3D reconstruction is valuable in the diagnosis of space-occupying lung lesions.