Table 2.
Data labeling criteria
| Classification | Potentially clinically important findings | Label instruction |
|---|---|---|
| Normal finding (labeled as 0) | NA | The scenarios when all organs are described as normal |
| Irrelevant finding (labeled as 1) | Bone: | If any lesion is observed and should be reported; meanwhile, the clinician is confident that the image finding provided limited information for diagnosis of tinnitus. |
| Any Degeneration | ||
| Brain: | ||
| -Brain degeneration | ||
| Nose and Sinus: | ||
| -Nasosinusitis (frontal sinus, sphenoid sinus, ethmoid sinus, maxillary sinus (except acute inflammation involving adjacent bone structures)) | ||
| -Nasal turbinate hypertrophy | ||
| -Deviation of nasal septum | ||
| -Sinus cyst | ||
| External/middle ear: - | ||
| Chronic middle ear mastoiditis (except acute inflammation involving adjacent bone structures) | ||
| -Auditory canal cerumen | ||
| -Low middle cranial fossa | ||
| Relative finding (labeled as 2) | Bone: - | If one or more image findings should be reported in detail, and lead to a certain diagnosis for further examination or clinical evaluation. Or the image finding addressed a need for urgent communication with clinicians for timely treatment. Since there is variability in language expression, the labeler’s judgment is used as reference. |
| Sigmoid sinus bone wall deficiency | ||
| -Superior semicircular canal dehiscence | ||
| -Auditory ossicle abnormality | ||
| -Bone fracture | ||
| -High jugular fossa | ||
| Brain: | ||
| -Neoplasms | ||
| -Intracranial hemorrhage | ||
| -Cerebral infarction | ||
| -Cerebral herniation | ||
| Nose and sinus cavity: | ||
| -Neoplasms | ||
| -Nasosinusitis (morphologically altered bone or sinus tract obstruction) | ||
| External/Middle ear: | ||
| -Tympanic lesion (inflammation, neoplasm or perforation) | ||
| -Otosclerosis | ||
| -Cholesteatoma | ||
| -Other neoplasm observed within the imaging field |