TABLE 2.

Neuroimaging study indications

Indication	Number (%) of Patients, All Imaging Studies (n = 1705)	Number (%) of Patients, Final Imaging Study (n = 389)
Follow up	502 (29.4%)	81 (20.8%)
Altered mental status	268 (15.7%)	71 (18.3%)
Seizures	214 (12.6%)	57 (14.7%)
Fever/Concern for infection	201 (11.8%)	58 (14.9%)
Shunt evaluation	185 (10.9%)	6 (1.5%)
Abnormal neurologic exam	151 (8.9%)	37 (9.5%)
Headache	78 (4.6%)	21 (5.4%)
Vomiting	58 (3.4%)	9 (2.3%)
Hypertension and/or bradycardia	41 (2.4%)	11 (2.8%)
Trauma	29 (1.7%)	9 (2.3%)
Apnea	23 (1.3%)	10 (2.6%)
Cardiac arrest	21 (1.2%)	9 (2.3%)
Concern for hemorrhage	20 (1.2%)	10 (2.6%)
Abnormal sodium	10 (0.6%)	5 (1.3%)