Rating of Techniques: Clinical condition—vertigo and hearing loss*
| MRI Head and Internal Auditory Canal without and with Contrast | MRI Head and Internal Auditory Canal without Contrast | CT Temporal Bone without Contrast | CT Head without and with Contrast | MRA Head with or without Contrast | CTA Head | |
|---|---|---|---|---|---|---|
| Sensorineural hearing loss, acute and intermittent vertigo | 8 | 7 | 6† | 3 | N/A | N/A |
| Sensorineural hearing loss, no vertigo | 8 | 7 | 5 | 4 | N/A | N/A |
| Conductive hearing loss, rule out petrous bone abnormality | 3 | 3‡ | 8 | 3 | N/A | N/A |
| Total deafness, cochlear implant candidate, surgical planning | 5 | 5 | 9 | 3 | N/A | N/A |
| Fluctuating hearing loss, history of meningitis or to rule out congenital anomaly | 7 | 7 | 8 | 4 | N/A | N/A |
| Episodic vertigo, new onset (hours to days) | 7 | 6 | 4 | 5 | 6 | 5 |
| Vertigo, no hearing loss, normal findings on neurologic examination | 8 | 7 | 5 | 4 | N/A | N/A |
Note:—MRI indicates MR imaging; MRA, MR angiography; CTA, CT angiography; N/A, not rated.
* Appropriateness criteria scale from 1 to 9: 1 indicates least appropriate; 9, most appropriate.
† For possible cholesteatoma with labyrinthine fistula.
‡ MR imaging is superior to CT for the detection of dural invasion and extradural extension.