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About Sickkids
About SickKids

Susan Blaser, MD, FRCP(C)

The Hospital for Sick Children
Diagnostic Imaging

Otolaryngology – Head and Neck Surgery

University of Toronto
Professor of Neuroradiology
Medical Imaging

Phone: 416-813-5469
Fax: 416-813-8389
Email: susan.blaser@sickkids.ca
Alternate Contact: Cindy Sawyer
Alternate Phone: 416-813-6888
Alternate Email: cindy.sawyer@sickkids.ca

Brief Biography

Dr. Blaser graduated from the Medical College of Ohio at Toledo and completed a pediatric internship prior to radiology residency training at the Cleveland Clinic. A neuroradiology fellowship at the University Hospitals of Case Western Reserve ensued and was followed by further fellowship training in pediatric neuroradiology at SickKids in Toronto and University of Toronto, where she is now a staff Neuroradiologist and Professor of Neuroradiology. She lectures internationally on the topic of pediatric neuroradiology and has a particular interest in the fields of neurometabolics, fetal MR and labyrinthine dysplasias. She is the lead author of Peds Neuro: Pocket Radiologist Series, an associate author of the Pediatrics and Brain issues of the Pocket Radiologist series,  Diagnostic Imaging: Brain 1 and Brain 2; Diagnostic Imaging Series: Pediatric Neuroradiology and Pediatrics and Expert DDx: Pediatrics. Dr. Blaser is the recipient of the 2013  American Society of Pediatric Neuroradiology Gold Medal.

Academic Background

Projects/ Initiatives:

1) Lectures internationally on the topic of paediatric neuroradiology. 

2) Research focus on inborn errors of metabolism and their effect on the brain and inner ear dysplasias.

3) Lead author of the published book, Peds Neuro issue of the Pocket Radiologist series.

4) Associate author of the Pediatrics issue of the Pocket radiologist series, of Diagnostic Imaging: Brain and of Diagnostic Imaging: Pediatric Neuroradiology.

Research Interests

Dr. Blaser's research focuses primarily on fetal MRI, inner ear dysplasias, inborn errors of metabolism and their effect on the brain and labyrinthine dysplasias.


Neonatal neuroimaging findings in inborn errors of metabolism.  Poretti A, Blaser SI, Lequin MH, Fatemi A, Meoded A, Northington FJ, Boltshauser E, Huisman TA. J Magn Reson Imaging. 2013 Feb;37(2):294-312.

Diagnostic approach to childhood-onset cerebellar atrophy: a 10-year retrospective study of 300 patients. Al-Maawali A, Blaser S, Yoon G. J Child Neurol. 2012 Sep;27(9):1121-32.

Abnormal corpus callosum in neonates after hypoxic-ischemic injury.  Epelman M, Daneman A, Halliday W, Whyte H, Blaser SI. Pediatr Radiol. 2012 Mar;42(3):321-30

Magnetic resonance imaging pattern recognition in hypomyelinating disorders.  Steenweg M.E, Vandrver A, Blaser S, Bizzi A, de Koning TJ, Mancini GM, van Wieringen WN, Barkhof F, Wolf NI, van der Knaap MS. Brain. 2010 Oct;133(10):2971-2982.

Thyroid gland and carotid artery anomalies in 22q11.2 deletion syndromes. de Almeida JR, James AL, Papsin BC, Weksburg R, Clark H, Blaser S. Laryngoscope. 2009 Aug;119(8):1495-1500.

Abnormal Skull Shape. Blaser SI.. Pediatr Radiol 2008 Jun;38 Suppl 3: S488-496.

A neuroimaging approach to inborn errors of metabolism.  Blaser S, Feigenbaum A. Neuroimaging Clin N Am. 2004 May;14(2):307-329.