The Keros classification is used for the radiological classification of the olfactory groove in relation to the lateral anterior cranial base on coronal images.
Historical background
The Keros classification was described in 1962 by the Croatian physician Predrag Keros[^1].
Classification
Grade | Description |
Grade 1 | 1 - 3 mm |
Grade 2 | 4 - 7 mm |
Grade 3 | 8 - 16 mm |