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Figure 1 | BMC Veterinary Research

Figure 1

From: Validation of a magnetic resonance imaging guided stereotactic access to the ovine brainstem

Figure 1

Sagittal and transverse T2 weighted magnetic resonance images of the head of a sheep. The sagittal image (a) shows the large frontal sinus (SF) rostral to the forebrain, and the transverse sinus (ST) as rostral limitation of the transcerebellar approach. The attachment of the neck musculature at the occipital squama (arrow heads) defines the caudal limitation of the approach leaving a small area of the occipital bone (OC) as entry point for the trajectory. The transverse image (b) shows the vermis of the cerebellum (V) and the brainstem at the level of the emergence of the facial nerve (*). Note the different nomenclature for the anatomical planes in veterinary medicine.

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