TY - JOUR T1 - Lung volume assessment on 3D-CT and estimated postoperative pulmonary function for lung cancer patients with and without COPD JF - European Respiratory Journal JO - Eur Respir J VL - 44 IS - Suppl 58 SP - P3269 AU - Masanori Yokoba AU - Tsuyoshi Ichikawa AU - Shinichiro Ryuge AU - Sachiyo Maki AU - Tomoya Fukui AU - Masaru Kubota AU - Noriyuki Masuda AU - Masato Katagiri Y1 - 2014/09/01 UR - http://erj.ersjournals.com/content/44/Suppl_58/P3269.abstract N2 - The evaluation of a postoperative pulmonary function is important for estimating the risk of complications and long-term disability after pulmonary resection. Number of segments method or the method considering the proportion of the resected lung is often used to estimate the postoperative pulmonary functions. However, those methods do not consider the actual volume of resected lobe. 3D-CT can divide and calculate the lung volume and its volume of low attenuation area (LAA) for every lobe. The aim of this study is to reveal the differentiation between 1) actual values examined after lobectomy (PO), 2) estimated postoperative values calculated with (a) number of segments method (ePOseg), (b) the proportion of the resected lung (ePOpro), and (c) resected lobular volume including its LAA obtained by 3D-CT (ePOCT) on a) FEV1.0, b) BSA corrected FEV1.0, c) %FEV1.0 and d) %DLco. 9 GOLD 1 or 2 patients and 12 non COPD patients were enrolled for this study. (Adenocarcinoma: Squamous cell carcinoma: Pleomorphic carcinoma 14: 6: 1 patients) For FEV1.0, %FEV1.0 and %DLco, there are no significantly differences between PO and all estimated values in COPD and non COPD patients. For BSA corrected FEV1.0, there are no significantly differences between PO and all estimated values in COPD patients, but ePOpro is significantly smaller than PO and ePOCT in non COPD patients. We concluded that 1) in COPD patients with moderate air flow limitation, 3D-CT related values are similar to the actual values obtained after lobectomy same as traditional methods, 2) BSA corrected FEV1.0 related with ePOseg might be underestimated compared with PO and ePOCT in non COPD patients. ER -