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Sample MR imaging protocol for suspected PHACE syndrome^{^a}
Sequence Feature Evaluated
Coronal and axial T2 fat-suppressed head and neck Facial hemangioma, extent of lesion, possible hemangioma in airway
Axial DWI brain Acute ischemia
Sagittal T1 or spoiled gradient-echo head and neck Midline intracranial structures including pituitary gland, myelination
Axial ASL head and neck Cerebral blood flow, hemangioma
Axial time-of-flight MRA head and neck Arterial abnormalities
Coronal contrast-enhanced dynamic MRA/MRV neck, if needed Arterial abnormalities, including evaluation of the aortic arch
Axial contrast-enhanced T1 fat-suppressed head and neck Enhancement pattern
Coronal contrast-enhanced T1 fat-suppressed internal auditory canals Hemangioma in the internal auditory canals
↵a Modified from Mamlouk et al¹³ with permission from Elsevier.