Fig. 4From: The effect of ultrasound-guided lung recruitment maneuvers on atelectasis in lung-healthy patients undergoing laparoscopic gynecologic surgery: a randomized controlled trialComparison of the incidence of atelectasis at different time points in each group. T1, arrival in the operating suite; T2, 1 min after mechanical ventilation; T3, at the end of surgery; T4, 15 min after arrival in the PACU; T5, 24 h after operation. #P < 0.05, T3 vs. T2 in the same group; *P < 0.05, T4 vs. T3 in the same group; †P < 0.05, RM group vs. C groupBack to article page