Fig. 3From: Radiological indicators to predict the application of assistant intubation techniques for patients undergoing cervical surgeryDistance indicators on the lateral sagittal neck MRI in the neutral position. MRI 1: distance between uvula and the posterior pharyngeal wall; MRI 2: distance between the tip of epiglottis and the posterior pharyngeal wall; MRI 3: distance between the base of tongue and the posterior pharyngeal wall; MRI 4: the length of epiglottis; MRI 5: distance between vocal cord and the posterior pharyngeal wall; MRI 6: distance from skin to the tip of epiglottis; MRI 7: distance from skin to hyoid bone; MRI 8: distance from skin to thyroid cartilage at the level of vocal cord; MRI 9: distance from skin to vocal cordBack to article page