The development of neuroimaging has allowed clinicians to improve clin
icoanatomic correlations in patients with strokes. Brainstem and cereb
ellum structures are well delineated on MRI, but there is a lack of st
andardization in their arterial supply. We present a system of 12 brai
nstem and cerebellum axial sections, depicting the dominant arterial t
erritories and the most important anatomic structures. These sections
may be used as a practical tool to determine arterial territories on M
RI, and may help establish consistent clinicoanatomic correlations in
patients with brainstem and cerebellar ischemic strokes.