[1] Bouvet L, Desgranges F P, Aubergy C, et al. Prevalence and factors predictive of full stomach in elective and emergency surgical patients: a prospective cohort study[J]. Br J Anaesth, 2017,118(3):372-379.
[2] Bouvet L, Mazoit J X, Chassard D, et al. Clinical assessment of the ultrasonographic measurement of antral area for estimating preoperative gastric content and volume[J]. Anesthesiology, 2011,114(5):1086-1092.
[3] Zhang G, Huang X, Shui Y, et al. Ultrasound to guide the individual medical decision by evaluating the gastric contents and risk of aspiration: A literature review[J]. Asian Journal of Surgery, 2020,43(12):1142-1148.
[4] Johnson E J, Morbach J, Blake C, et al. Sensitivity and Specificity of Gastric Ultrasonography in Determination of Gastric Contents[J]. AANA J, 2021,89(1):9-16.