The Study Of Multi-slice Spiral CT In The Relationship Between Solitary Pulmonary Nodule And Bronchus

Objective: To explore the pathological basic and the clinical diagnostic value of the relationship between solitary pulmonary nodule and bronchus. Methods: MSCT routine scans of 10mm collimation and continuous volume targeted scans of 2.5mm collimation with bone algorithm were performed and reconstructed imaging of MPR, CPR, MIP, MIN-IP, VR and SSD in workstation in 65 patients of SPN with ≤ 3mmin diameter (including 43 malignant and 22 begnign nodules) . The shape and patterns of the SPN with related bronchus were analyzed and compared with macroscopic and microscopic specimens.Results: (1) The relationship between SPN and bronchus and the SPN-bronchus structure feature can clearly display by MSCT continuous volume targeted scans of 2.5mm collimation with bone algorithm.and with all sorts of reconstructed imaging method. (2)39 patients (60.0 % ) in relationship between SPN and bronchus were demonstrated by MSCT, and 30 (69.8%) malignant nodules and 9 (40.9%) benign nodules, there are statistically significant difference (P<0.05) . (3) The SPN-bronchus relationship was identified as four types with MSCT. Type I : the patient bronchus leadst directly to the SPN. Type II: bronchus penetrated into SPN with tapered narrow and interruption. Type III: bronchus contained...