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Updated: Sep 2, 2025

In vitro Assessment of Aortic Regurgitation Using Four-Dimensional Flow Magnetic Resonance Imaging
Published on: February 25, 2022
Morphological changes in vertebral artery dissections observed on 4D flow magnetic resonance images: case report
Masashi Abe1, Kyongsong Kim2, Minoru Ideguchi2
1Department of Radiology, Nippon Medical School, Chiba Hokusoh Hospital, Kamagari, Inzai City, Chiba, 1715, Japan. rtmasashi@nms.ac.jp.
Abstract:
The morphology of vertebral artery (VA) dissections can change in the clinical course. A 58-year-old female with a 2-week headache was diagnosed with left VA dissection. Hemodynamic stress on the right VA detected on 4D flow MRI scans resulted in increased wall shear stress but the vessel was morphologically unchanged. Subsequent MRA revealed right VA dissection. Her bilateral dissections were treated conservatively and no neurological abnormality developed. Serial 4D flow MRI may be useful for observing morphological changes in VA dissections and help to clarify the mechanism(s) underlying VA dissections.

