Table 2:

Injuries and Imaging Documented

	n	%
Patients (N=345) with documentation of:
Any visible injury to the neck	216	62.6
Neck injuries photographed (of n=216 with visible injuries)	105	48.6
Any imaging*	315	91.3
Dedicated neck vasculature imaging**	216	62.6
Offered and declined dedicated neck imaging	12	3.5
Among patients with any imaging (n=315):
Types of head imaging
CT head without contrast	95	30.2
CT head with contrast	2	0.6
CT facial bones without contrast	5	1.6
CT head and facial bones without contrast	46	14.6
Types of neck imaging
CT with IV contrast	200	63.5
CT angiogram	6	1.9
Carotid ultrasound	10	3.2
Among patients with any imaging (n=315):
Documented imaging findings to non-head/neck areas (n=10 patients *** ):
Finger fracture	3	1.0
Rib fracture	2	0.6
Pleural effusion	1	0.3
Ligament tear	1	0.3
Intrathoracic hemorrhage	1	0.3
Shoulder dislocation	1	0.3
Finger edema	1	0.3
Finger laceration	1	0.3
Documented imaging findings to the head or neck (n=45 patients *** ):
Facial edema	11	3.5
Neck muscle spasm	8	2.5
Facial fracture	7	2.2
Neck edema	3	1.0
Neck contusion	3	1.0
Facial contusion	2	0.6
Epiglottal swelling	2	0.6
Enlarged lymph nodes	2	0.6
Carotid artery dissection	2	0.6
Hyoid fracture	2	0.6
Herniated disk	2	0.6
Stroke	2	0.6
Scalp hematoma	1	0.3
Intracranial hemorrhage	1	0.3
Cervical spondylosis	1	0.3
Cervical fracture	1	0.3

^*Includes: Any imaging test to any area of the patient, not specific to head or neck.

^**Includes: CTA, CT with IV contrast, or ultrasound specific to neck

^***Findings are not mutually exclusive (e.g., one person can have multiple reported types of imaging with this category or imaging findings).