Study on the directing role of multi-slice spiral CT and multiplanar reformation(MPR)in bronchoscopy / 中国实用内科杂志

ABSTRACT

Objective To study on the directing role of multi-slice spiral CT and multiplanar reformation(MPR)in bronchoscopy and enhance the yield of peripheral pulmonary carcinoma(PPC).Methods This study was carried in 60 PPC patients from Respiratory Department in the First Hospital Affilliated to Suzhou University during 2002—2005.They underwent MSCT.Images were reconstructed with MPR(CPR)to evaluate the relationship between PPC and bronchi and the type of BS was identified.Compare the diagnosed yields of bronchoscopic multiple diagnostic procedure(BMDPs)with types of BS.Results (1)In all patients the third to the seventh level branches of the bronchi were clearly shown.The tumor-bronchus relationship was identified as four types on MSCT.(2)MSCT demonstrated the BS in 22 of 25 adenocarcinomas and 13 of 17 squamous-cell carcinomas and 4 of 6 small cell lung carcinomas and 4 of 8 bronchiolo-alveolar carcinomas.(3)BS typeⅠwas shown in 15of 48(31.3%).Type Ⅱ was seen in 7 of 48(14.6%).Type Ⅲ was shown in 12 of 48(25%)squamous tumors.Type Ⅳ was seen in 14 of 48(29.2%).(4)Total positive rate of bronchoscopy was 58.3%,73.3% with BS and 13.3% without BS.Type of BS was closely associated with positive rate of BMDPs.Conclusion Axial CT and MPR can show the relationship between PPC and bronchi better.BS can direct fiberoptic bronchoscopy(FOB)diagnosis procedure and enhance the yield of PPC.