Fig. 9From: Generation of ventilation/perfusion ratio map in surgical patients by dual-energy CT after xenon inhalation and intravenous contrast mediaChanges in distribution indices before and after resection in patients with thoracoscopic versus thoracotomy resection. Regarding the distribution indices of V/Q, the changes before and after resection had similar trends except for FD, which was significantly increased after resection in the thoracotomy group. * p < 0.05 vs preoperative valuesBack to article page