Diagnostic imaging tests play an increasingly important role in diagnosing a
difficult airway. The variety of tests and their relatively easy availability provide
anaesthesiologists with valuable information regarding the challenge of potential
difficulty in managing airways. In this chapter, the radiological parameters proven most
useful in the various imaging techniques commonly employed in clinical practice will
be reviewed: conventional radiology, computed tomography, and ultrasonography.
Keywords: Acromegaly, Airway assessment, Airway sonography, Computed
tomography, Cormack-Lehane grade, Cervical soft tissue, Difficult intubation,
Difficult Laryngoscopy, Difficult airway, Diagnostic odds ratios, Hyomental
distance, Lateral neck radiography, Morbid obesity, Positive predictive value,
Radiological indicator, Thyromental distance, Ultrasound, X-ray.
