Key Action Statement 2C: Clinicians should perform MRI when concerned about associated structural abnormalities (eg, PHACE syndrome or LUMBAR syndrome) (grade B, moderate recommendation).

Aggregate Evidence QualityGrade B
BenefitsSelect the appropriate imaging study to aid in diagnosis and identify associated abnormalities; avoid ionizing radiation and sedation
Risks, harm, costRisk of sedation or general anesthesia
Cost of MRI (but offers greater diagnostic sensitivity)
Benefit-harm assessmentBenefits outweigh harms
Intentional vaguenessNone
Role of patient preferenceMinimal
StrengthModerate recommendation
Key references46,5155