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目的:比较振动反应成像技术(VRI)和预计公式对肺癌患者术后肺功能的预测价值。方法 :入组的肺癌患者在术前行肺功能和VRI检查,分别使用VRI的O-Plan软件与传统公式预测术后的第1秒用力肺活量(FEV1)、FEV1占预计值的百分比(FEV1%pred)、一氧化碳弥散量(DLCO)和DLCO占预计值的百分比(DLCO%pred),术后3个月再次检测肺功能。结果 :62例患者完成本研究,肺切除术后患者的肺功能均较术前显著降低。与患者术后3个月的肺功能实测值比较,公式法的预测值有显著差异(P<0.05),而VRI预测值无显著性差异(P>0.05)。VRI预测值与术后肺功能实测值之间有较好的相关性:FEV1的相关系数为0.857,FEV1%pred为0.802,DLCO为0.799,DLCO%pred为0.748。结论 :VRI可以准确预测肺癌患者术后肺功能,为患者能否安全接受手术提供指导。
OBJECTIVE: To compare the predictive value of postoperative pulmonary function in patients with lung cancer by Vibration Response Imaging (VRI) and predictive formula. Methods: Pulmonary function and VRI examination were performed preoperatively in patients with lung cancer. VRI O-Plan software and traditional formula were used to predict FEV 1, FEV 1% of predicted value (FEV 1% pred, DLCO, and DLCO% pred, as well as DLCO% pred. Lung function was measured again 3 months after surgery. RESULTS: Sixty-two patients completed the study and had significantly lower pulmonary function after surgery than before surgery. The predictive value of the formula method was significantly different from that of the 3-month postoperative pulmonary function test (P <0.05), but no significant difference was found in the VRI predictive value (P> 0.05). There was a good correlation between the VRI predictive value and the measured postoperative pulmonary function: the correlation coefficient of FEV1 was 0.857, the FEV1% pred was 0.802, the DLCO was 0.799, and the DLCO% pred was 0.748. Conclusion: The VRI can accurately predict postoperative lung function in patients with lung cancer and provide guidance for the patients to safely accept the operation.