Head and Neck Imaging

Indication of Airway Stenosis After Lung Transplantation by MSCT Reconstruction Based on Fitted Window Width and Window Level

Author:CHEN Qiong-zhu, LAN Ri-hui, XIA Ting-ting, et al.

affiliation:The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China

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Abstract

Objective To discuss the indication of airway stenosis in a consecutive series of bronchial anastomosis after lung transplantation in our hospital. Methods We performed a retrospective imaged study on 110 cases of lung transplants in our hospital from January 2003 to April 2016. Sixty-two cases were subjected to single lung transplants, and fortyeight to bilateral sequential single Iung transpIantation. There were totally l58 bronchial anastomoses. 72 MSCT imaging which confirmed or suspected anastomosis stenosis were selected to further handle from 37 cases. Changed the axial to coronal section, then adjusted the window width and window level were fitted to show the airway stenosis. Compared the ability of distinguish airway stenosis between this two kinds of images, three experience physician readed this two groups imaging using ROC analysis. ROC curved was made by Excel 2010. All recipients received long-term MSCT follow-up. Fibrobronchoscopic examinations were done when necessary. Results ROC analysis indicated that there were significant difference (P<0.001) between coronal and axial imaging groups with a=0.7856, b=0.9952, Az=0.7112 on the former and a=0.6916, b=1.0441, Az=0.6838 on the latter. Conclusion Reconstruction Coronal imaging can more effectively show airway stenosis after lung transplantation than the axial ones.

【Keyword】Lung Transplantation; Airway Stenosis; Tomography; X-ray Computer

【Chart number】R816.41

【Document Identification Number】A

【DOI】10.3969/j.issn.1672- 5131.2017.01.012