Table 2. Oral airway mean diameters of seven realistic mouth throat models† based on MRI scans (13).

Model	Idealized ‡	S1a§	S1b§	S2	S4	S5a§	S5b§	S3	Mean±SD
dmean	2.1	1.8	1.5	2.5	2.4	2.6	2.8	2.0	2.21±0.43

^†The model includes Caucasian male and female subjects aged 23-43 years; ^‡Subject representing average geometry of actual subjects; ^§Model with intrasubject geometric configurations.