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Cerebral and cervical arterial abnormalities occur commonly in these patients, predisposing subjects with PHACE syndrome to neurovascular complications including migraine-like headaches, moyamoya vasculopathy, arterial dissection and arterial ischaemia stroke. We leveraged institutional MRI protocols developed for adult neurovascular disease to better elucidate the pathogenesis of the arterial alternations observed in PHACE. Using high-resolution vessel wall and 4D flow MRI, we demonstrated enhancement, focal dissection and altered blood flow in a 7-year-old girl with PHACE syndrome. This is the first-time vessel wall imaging has been used to detail the known arterial changes in PHACE, and these findings may indicate that progressive vascular narrowing and vessel wall changes\/inflammation are a factor in chronic headaches and other arterial complications seen in subjects with PHACE syndrome.<\/jats:p>","DOI":"10.1136\/bcr-2020-235992","type":"journal-article","created":{"date-parts":[[2020,9,14]],"date-time":"2020-09-14T17:18:34Z","timestamp":1600103914000},"page":"e235992","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":10,"title":["Utilisation of advanced MRI techniques to understand neurovascular complications of PHACE syndrome: a case of arterial stenosis and dissection"],"prefix":"10.1136","volume":"13","author":[{"given":"Laura B","family":"Eisenmenger","sequence":"first","affiliation":[{"name":"Radiology, University of Wisconsin, Madison, Wisconsin, 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