[An MRI study of the cervical segment of the vertebral artery]

MRI appears to be a very valuable examination to study pathology of the vertebral artery. The examination must include T1 and T2 sequences and scans in three planes. The use of oblique scans allows the planes of section to be adjusted to the course of the artery. MRI can therefore demonstrate abnormalities of flow caused by intrinsic or compressive pathology.