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Fig 2. A 52-year-old women with persistent neck pain. CE elliptical centric MR angiogram shows irregularity of both midvertebral arteries, right greater than left (A). Follow-up MR angiogram 1 year later with an earlier trigger time reduces the feathering artifact (B). Review of source images shows that the multiple interference patterns on the first examination (arrow, C) are less evident with the earlier triggering on the second examination (arrow, D). As a result the vertebral arteries are more clearly delineated on the second examination.
