title: Preoperative evaluation of stage T3, central-type non-small cell lung cancer with double sleeve lobectomy under complete video-assisted thoracoscopic surgery using spiral computed tomography post-processing techniques.
abstract: BACKGROUND
  To investigate the estimated value of spiral computed tomography (CT) post-processing techniques in preoperative stage T3, central-type non-small cell lung cancer (NSCLC) with double sleeve lobectomy under complete video-assisted thoracoscopic surgery (c-VATS).
  
  
  METHODS
  Preoperative clinical date and CT reconstructed data of 10 patients who underwent double sleeve lobectomy with upper lobe stage T3, central-type NSCLC were retrospectively analysed and compared to surgical pathological results and cross-sectional CT data. The diagnostic criterions of tumour invasion of pulmonary artery and bronchus were divided into five grades, which included estimation of upper lobe pulmonary arteries and bronchi (40 branches, respectively).
  
  
  RESULTS
  The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of cross-sectional CT images of pulmonary artery tumour invasion were 78.57%, 58.33%, 81.48%, 53.85%, and 72.50%, respectively, while the respective values for CT reconstructed images were 93.55%, 87.50%, 96.67%, 70.00%, and 90.00%, showing statistical significance (χ(2)=4.021, P=0.045). Similarly, the evaluate, the sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of cross-sectional CT images of bronchial tumour invasion were 82.76%, 45.45%, 80.00%, 50.00%, and 72.50%, respectively, while the respective values for CT reconstructed images were 97.06%, 66.67%, 94.29%, 80.00%, 92.50%; these results were also statistically significant (χ(2)=5.541, P=0.019).
  
  
  CONCLUSIONS
  The sensitivity, specificity, and diagnostic accuracy of the spiral CT post-processing techniques were better than cross-sectional CT images in estimating the extent of tumour invasion in the pulmonary arteries and bronchi of central-type NSCLC. CT post-processing techniques are essential tools in preoperative examination and operative method selection of central-type lung cancer with double sleeve lobectomy under c-VATS.
authors: Department of Radiology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China;; State Key Laboratory of Respiratory Disease, Guangzhou 510120, China;
authors: Yubao
authors: Y
authors: Guan
authors: State Key Laboratory of Respiratory Disease, Guangzhou 510120, China;; Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
authors: Jun
authors: J
authors: Huang
authors: Department of Radiology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China;; State Key Laboratory of Respiratory Disease, Guangzhou 510120, China;
authors: Tingting
authors: T
authors: Xia
authors: Department of Radiology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China;; State Key Laboratory of Respiratory Disease, Guangzhou 510120, China;
authors: Xiaoting
authors: X
authors: You
authors: State Key Laboratory of Respiratory Disease, Guangzhou 510120, China;; Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
authors: Jiaxi
authors: J
authors: He
authors: State Key Laboratory of Respiratory Disease, Guangzhou 510120, China;; Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
authors: Jianxing
authors: J
authors: He
keywords: Pulmonary tumour; central-type; spiral CT imaging post-processing techniques; tomography, X-ray computed