Department of Thoracic and Cardiovascular Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
Ann Thorac Surg. 2012 Nov;94(5):1680-6. doi: 10.1016/j.athoracsur.2012.07.019. Epub 2012 Sep 7.
Vibration response imaging (VRI) is a new technique that captures lung sounds generated by the flow of air through the lungs. It predicts postoperative values for an intended lung resection. In this study, we measured the predicted postoperative pulmonary function as determined by a perfusion lung scan and the VRI, and compared with results from the postoperative pulmonary function.
This study was performed prospectively in patients who were candidates for major pulmonary resection. Each patient underwent a pulmonary function test, perfusion scintigraphy, and VRI within 1 week before operation. Postoperative lung function was measured at 4 to 6 weeks.
The study enrolled 44 patients. There were no significant differences for predicted postoperative forced expiratory volume in 1 second (ppoFEV(1)) and predicted postoperative diffusion capacity of the lung for carbon monoxide (ppoDlco) between scan and VRI. Both ppoFEV(1) and ppoDlco using a scan and VRI predicted the postoperative results well, respectively. The postoperative FEV(1) was correlated with ppoFEV(1) using a scan (r = 0.83, p < 0.001), and the ppoFEV(1) using a VRI (r = 0.83, p < 0.001). The postoperative Dlco was correlated with the ppoDlco using a scan (r = 0.85, p < 0.001), and the ppoDlco using a VRI (r = 0.80, p < 0.001).
The VRI was highly predictive of postoperative FEV(1) and Dlco for lung resection.
振动响应成像（VRI）是一种新技术，可捕获通过肺部的空气流动产生的肺部声音。它预测了预期的肺切除术后的值。在这项研究中，我们测量了通过灌注肺扫描和 VRI 确定的预测术后肺功能，并将其与术后肺功能的结果进行了比较。
这项前瞻性研究纳入了候选进行大肺切除术的患者。每位患者在术前 1 周内进行了肺功能测试、灌注闪烁扫描和 VRI。术后肺功能在 4 至 6 周时进行测量。
该研究纳入了 44 例患者。扫描和 VRI 之间的预测术后 1 秒用力呼气量（ppoFEV（1））和预测术后一氧化碳弥散量（ppoDlco）没有显著差异。扫描和 VRI 分别预测了术后结果的 ppoFEV（1）和 ppoDlco。术后 FEV（1）与扫描的 ppoFEV（1）相关（r = 0.83，p < 0.001），与 VRI 的 ppoFEV（1）相关（r = 0.83，p < 0.001）。术后 Dlco 与扫描的 ppoDlco 相关（r = 0.85，p < 0.001），与 VRI 的 ppoDlco 相关（r = 0.80，p < 0.001）。
VRI 高度预测了肺切除术后的 FEV（1）和 Dlco。
