Anatomic Structures, Lesions, and Implants Used for Comparison
| Temporal Bone Structure | Summed Scores | ||
|---|---|---|---|
| MSCT | VCT | Maximum | |
| 1 Tympanic membrane | 10 | 24 | 24 |
| 2 Handle of malleus | 24 | 24 | 24 |
| 3 Head of malleus | 24 | 24 | 24 |
| 4 Bone marrow of malleus | 0 | 21 | 24 |
| 5 Anterior process of malleus | 7 | 19 | 24 |
| 6 Incudomalleolar joint | 11 | 21 | 24 |
| 7 Body of incus | 24 | 24 | 24 |
| 8 Bone marrow of incus | 0 | 19 | 24 |
| 9 Long process of incus | 24 | 24 | 24 |
| 10 Short process of incus | 24 | 24 | 24 |
| 11 Lenticular process of incus | 8 | 21 | 24 |
| 12 Incudo-stapedial joint | 0 | 19 | 24 |
| 13 Head of stapes | 9 | 24 | 24 |
| 14 Anterior crus of stapes | 12 | 24 | 24 |
| 15 Posterior crus of stapes | 8 | 18 | 24 |
| 16 Footplate of stapes | 12 | 24 | 24 |
| 17 Annular ligament | 0 | 0 | 24 |
| 18 Tendon of tensor tympani | 6 | 18 | 24 |
| 19 Stapedius muscle | 4 | 18 | 24 |
| 20 Anterior ligament of malleus | 6 | 15 | 24 |
| 21 Superior ligament of malleus | 9 | 11 | 24 |
| 22 Posterior ligament of incus | 10 | 12 | 24 |
| 23 Bony labyrinth of cochlea | 21 | 24 | 24 |
| 24 Interscalar septum of cochlea | 0 | 21 | 24 |
| 25 Modiolus of cochlea | 12 | 24 | 24 |
| 26 Vestibular aqueduct | 8 | 24 | 24 |
| 27 Cochlear aqueduct | 6 | 24 | 24 |
| 28 Facial nerve | 0 | 24 | 24 |
| 29 Geniculate ganglion | 2 | 23 | 24 |
| 30 Bony facial nerve canal | 20 | 24 | 24 |
| 31 Facial nerve in IAC | 5 | 24 | 24 |
| 32 Greater petrosal nerve | 5 | 24 | 24 |
| 33 Chorda tympani nerve | 3 | 6 | 24 |
| 34 Vestibulocochlear nerve | 9 | 24 | 24 |
| 35 Superior vestibular nerve | 0 | 24 | 24 |
| 36 Inferior vestibular nerve | 0 | 24 | 24 |
| 37 Cochlear nerve | 0 | 24 | 24 |
| 38 Smaller lesion in neck of malleus | 2 | 6 | 6 |
| 39 Bigger lesion in long process of incus | 6 | 6 | 6 |
| 40 Cochlea implant (overall) | 3 | 6 | 6 |
| 41 Electrodes of cochlea implant | 1 | 5 | 6 |
| 42 Clamp of middle ear hearing aid | 1 | 6 | 6 |