1Sustic A. Role of ultrasound in the airway management of critical- ly ill patients. Crit Care Med, 2007,35(5):173-177.
2Prasad A, Yu E, Wong DT, et al. Comparison of sonography and computed tomography as imaging tools for assessment of air- way structures. J Ultrasound Med, 2011,30(7) :965-972.
3Singh M, Chin KJ, Chan VW, et al. Use of sonography for air- way assessment: An observational study. J Ultrasound Med, 2010,29(1) : 79-85.
4Cheng S, Butler JE, Gandevia SC, et al. Movement of the human upper airway during inspiration with and without inspiratory re- sistive loading. J Appl Physiol, 2011,110(1) :69-75.
5Owens RL, Malhotra A, Eckert DJ, et al. The influence of end- expiratory lung volume on measurements of pharyngeal collaps- ibility. J Appl Physiol, 2010, 108(2) :445-451.
6Walsh JH, Leigh MS, Paduch A. Evaluation of pharyngeal shape and size using anatomical optical coherence tomography in individ- uals with and without obstructive sleep apnoea. J Sleep Res, 2008,17(2) :230-238.
7Hu Q, Zhu SY, Luo F, et al. High-frequency sonographic meas urements of true and false vocal cords. J Ultrasound Med, 2010, 29(7) : 1023-1030.
8Jennum P, Riha RL. Epidemiology of sleep apnoea/hypopnoea syndrome and sleep-disordered breathing. Eur Respir J, 2009,33 (4) :907-914.
9Shigeta Y, Ogawa T, Venturin J, et al. Gender- and age-based differences in computerized tomographie measurements of the orophaynx. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2008, 106(4) :563-570.
10Segal Y, Malhotra A, Pillar G. Upper airway length may be as- sociated with the severity of obstructive sleep apnea syndrome. Sleep Breath, 2008,12(4) :311-316.
