Table 1.
Number of dogs of each breed.
Fig 1.
Determining of the rostral border of the presphenoid bone point (RPB).
Position of the most caudal cribriform foramina on the transverse scan. Cribriform foramen is marked with arrow.
Fig 2.
Determining of the rostral border of the presphenoid bone point (RPB).
Position of RPB point on sagittal scan is marked with a dot.
Fig 3.
Points determinated in the median plane.
RPB–rostral border of the presphenoid bone point, SC–sulchus chiasmatis point, RBPW–rostral border of the basis of the presphenoid bone wings, HF–hypophyseal fossa point, DPB–dorsal aspect of the presphenoid bone point and B–basion.
Fig 4.
RMCFA–rostral / medial cranial fossa angle.
Fig 5.
Comparison of I 1 index (PBL/SBL) between 4 groups of dogs.
Individuals are classified according to their skull index (SI): B–brachycephalic group (SI >80.00), M1 –mesaticephalic 1 group (SI from 50.01 to 65.00), M2 –mesaticephalic 2 group (SI from 65.01 to 80.00); D–dolichocephalic group (SI ≤50.00). Horizontal lines indicate groups which differ significantly from each other.
Fig 6.
Comparison of I 3 index (PBL/PBWL) between 4 groups of dogs.
Individuals are classified according to their skull index (SI): B–brachycephalic group (SI >80.00), M1 –mesaticephalic 1 group (SI from 50.01 to 65.00), M2 –mesaticephalic 2 group (SI from 65.01 to 80.00); D–dolichocephalic group (SI ≤50.00). Horizontal lines indicate groups which differ significantly from each other.
Fig 7.
Comparison of the rostral / middle cranial fossa angle (RMCFA) between 4 groups of dogs.
Individuals are classified according to their skull index (SI): B–brachycephalic group (SI >80.00), M1 –mesaticephalic 1 group (SI from 50.01 to 65.00), M2 –mesaticephalic 2 group (SI from 65.01 to 80.00); D–dolichocephalic group (SI ≤50.00). Horizontal lines indicate groups which differ significantly from each other.
Fig 8.
Correlation between the I 3 index (PBL/PBWL) and the I 4 index (volRCF/volCC).
Fig 9.
Correlation between the I 1 index (PBL/SBL) and the I 4 index (volRCF/volCC).