. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: J Trauma Acute Care Surg. 2014 Apr;76(4):1089–1095. doi: 10.1097/TA.0000000000000155

Table 3.

Indications for initial head CT and repeat neuroimaging

Characteristic	n (%)
Indication for imaging^*
Mechanism	55 (47)
Loss of consciousness	37 (31)
Altered mental status	31 (26)
Severe headache	28 (24)
Emesis	25 (21)
Suspected seizure	11 (9.3)
Other	15 (13)
Repeat neuroimaging performed	69 (58)
Indication for repeat imaging^**
Monitor progression	47 (68)
Headache	8 (12)
Emesis	6 (8.7)
Altered mental status or acting abnormal	5 (7.2)
Concern for vascular lesion	7 (10)
Evaluate for NAT	6 (8.7)
Other	10 (15)

Indications were inferred from retrospective chart review. Numbers do not equal 100%, since patients had more than one indication for imaging in some instances.

^**

Indications were inferred from retrospective chart review. Numbers do not equal 100% since patients were reimaged more than once in some cases.