Lung ultrasound examination
pulmonary atelectasis, atelectasis
PULMONARY ATELECTASIS, LUNG, ATELECTASIS
Lung ultrasound was performed twice before the induction of anesthesia and 20 min after the removal of the laryngeal mask. The lung ultrasound was performed by a specialist anesthetist trained in lung ultrasound with an M7series ultrasound machine (Shenzhen Myriad Biomedical Electronics Co., Ltd.). A 4–10 MHz line array probe was selected and the lung ultrasound was performed in the supine and lateral positions as described by Acosta et al. [Partition of lung ultrasoundAtelectasis was divided into four grades under lung ultrasound (Fig. Ultrasound images of pulmonary atelectasis and grading of atelectasis