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- W4313554489 abstract "Abstract Background Functional lung volume (FLV) obtained from computed tomography images was a breakthrough for lung imaging and functional assessment. We compared the accuracy of the FLV measurement method and the segment-counting (SC) method in predicting postoperative pulmonary function. Methods A total of 113 patients who underwent two thoracoscopic surgeries were enrolled in our study. We predicted postoperative pulmonary function by the FLV measurement method and the SC method. Novel formulas based on the FLV measurement method were established using linear regression equations between the factors affecting pulmonary function and the measured values. Results The predicted postoperative forced vital capacity (ppoFVC) and forced expiratory volume in 1 s (ppoFEV1) measured by the 2 methods showed high concordance between the actual postoperative forced vital capacity (postFVC) and the forced expiratory volume in 1 s (postFEV1) [ r = 0.762, P < 0.001 (FLV method) and r = 0.759, P < 0.001 (SC method) for FVC; r = 0.790, P < 0.001 (FLV method) and r = 0.795, P < 0.001 (SC method) for FEV1]. Regression analysis showed that the measured preoperative pulmonary function parameters (FVC, FEV1) and the ratio of reduced FLV to preoperative FLV were significantly associated with the actual postoperative values and could predict these parameters (all P < 0.001). The feasibility of using these equations [postFVC = 0.8 × FVC − 0.784 × ΔFLV/FLV + 0.283 (R 2 = 0.677, RSD = 0.338), postFEV1 = 0.766 × FEV1 − 0.694 × ΔFLV/FLV + 0.22 (R 2 = 0.743, RSD = 0.265)] to predict the pulmonary function parameters after wedge resection was also verified. Conclusions The new FLV measurement method is valuable for predicting postoperative pulmonary function in patients undergoing lung resection surgery, with accuracy and consistency similar to those of the conventional SC method." @default.
- W4313554489 created "2023-01-06" @default.
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- W4313554489 date "2023-01-05" @default.
- W4313554489 modified "2023-10-06" @default.
- W4313554489 title "Comparison between functional lung volume measurement and segment counting for predicting postoperative pulmonary function after pulmonary resection in lung cancer patients" @default.
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- W4313554489 doi "https://doi.org/10.1186/s12890-022-02299-y" @default.
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