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Table 1 Measurements for the Syndaver, Laerdal, and SimAir manikins obtained from hand measuring* and CT scans compared to human measurements from literature

From: Proceedings of the 5th Annual United States Army Institute of Surgical Research Summer Undergraduate Research Internship Program 2017

  Human SynDaver* SynDaver CT Laerdal* Laerdal CT SimAir* SimAir CT
Height mouth opens (cm) 4.78±0.83 5.98 (0.93) 4.52 (0.38) 8.10 (0.99)
Neck circumference (cm) 36.6±3.5 33.4 (0.18) 36.02 (0.43) 43.55 (0.98) 42.84 (0.96) 41.23 (0.91) 40.15 (0.85)
Tracheal length (cm) 8.6±1.1 9.54 (0.8) 9.04 (0.66) 3.27 (0.0) 3.30 (0.0) 7.83 (0.24) 8.01 (0.30)
Epiglottis tip—posterior pharyngeal wall (cm) 0.9±0.4 1.67 (0.97) 1.54 (0.95) 3.54 (0.99) 2.35 (0.99) 1.48 (0.93) 1.10 (0.69)
Angle right main stem bronchus (°) 25 49.57 53.80 29.15 32.37 19.67
Total airway volume (cm3) 22.5±9.0 106.72 (0.99) 170.18 (0.99) 104.84 (0.99)
Oral pharynx volume (cm3) 3.6±2.6 20.06 (0.99) 27.37 (0.99) 7.99 (0.95)
  1. Values are mean (accuracy to human measurement)