title: Arterial spin-labeled perfusion for vascular anomalies in the pediatric head and neck.
abstract: OBJECTIVE
  To study the arterial spin-labeled (ASL) imaging features of vascular anomalies in the head and neck.
  
  
  METHODS
  The presence or absence of ASL signal was evaluated for each vascular anomaly, and a comparison with conventional magnetic resonance (MR) sequences was performed.
  
  
  RESULTS
  Twenty-five children were identified with vascular anomalies. All proliferating infantile hemangiomas demonstrated hyperintense ASL signal. There were eight cases that ASL imaging provided additional information when compared with conventional MR sequences, including increased lesion conspicuity and altered perfusion.
  
  
  CONCLUSIONS
  ASL imaging of cutaneous vascular anomalies shows specific signal intensity patterns and can provide additional value when compared to conventional MR sequences.
authors.affiliation: Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Ave, L352, San Francisco, CA 94143; Department of Radiology, The Permanente Medical Group, Kaiser Permanente Medical Center, Santa Clara, 700 Lawrence Expy, Santa Clara, CA 95051. Electronic address: mark.d.mamlouk@kp.org.
authors.forename: Mark D
authors.initials: MD
authors.lastname: Mamlouk
authors.affiliation: Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Ave, L352, San Francisco, CA 94143.
authors.forename: Christopher P
authors.initials: CP
authors.lastname: Hess
mesh_terms: D000293:Adolescent; D001017:Aortic Coarctation / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D005124:Eye Abnormalities / Q000000981:diagnostic imaging*; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging*; D018324:Hemangioma, Capillary / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D044148:Lymphatic Abnormalities / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D020752:Neurocutaneous Syndromes / Q000000981:diagnostic imaging*; D010477:Perfusion; D012189:Retrospective Studies; D013113:Spin Labels; D054079:Vascular Malformations / Q000000981:diagnostic imaging*
chemical_list: D013113:Spin Labels
keywords: Arterial spin labeling; Hemangioma; PHACE; Vascular anomalies