Radiologic Exam Procedure | Appropriateness Rating | Comments |
---|---|---|
MRI, head, without contrast | 8 | |
CT, head, without contrast | 6 | |
MRA, head and neck | 4 | For selected cases |
CTA, head and neck | 4 | For selected cases |
NUC, SPECT | 4 | For selected cases |
PET | 4 | For selected cases |
MRI, head, without and with contrast | 3 | |
fMRI, head | 2 | |
X-ray, skull | 2 | |
X-ray and/or CT, cervical spine | 2 | Assuming there are no spinal neurologic deficits |
CT, head, without and with contrast | 2 | |
INV, cerebral angiography | 1 | |
CT, head, xenon-enhanced | 1 | |
US, transcranial Doppler | 1 |
Appropriateness Criteria Scale: 1 = least appropriate; 9 = most appropriate. Abbreviations are as defined in Table 1.
* Head Trauma: American College of Radiology Appropriateness Criteria for Neuroimaging.23