Neuroscience Research Program

Image of Tom Marotta

Tom Marotta


Project Investigator, Keenan Research Centre of the Li Ka Shing Knowledge Institute, St. Michael's Hospital

Interventional Neuroradiologist, Medical Imaging, St. Michael's Hospital

Research Interests

Aneurysm diagnosis and surgery, three-dimensional imaging, magnetic resonance angiography, X-ray computed tomography, blood vessel prosthesis, new devices for endovascular repair of aneurysms

Contact Information

Phone: 416-864-5675

1. Marotta TR, Gunnarsson T, Penn I, Ricci DR, McDougall I, Marko A, Bourne G, Da Costa L. A novel endovascular clip system for the treatment of intracranial aneurysms: technology, concept, and initial experimental results. J. Neurosurg June 2008; 108: 1230-1240

2. Marotta TR, Buller C, Taylor DC, Morris C, Zwimpfer T. Autologous Vein Covered Stent Repair of an Internal Carotid Artery Pseudoaneurysm. Journal of Neurosurgery, Vol 42, No. 2:408-413. February 1998.

3. Martin MA, Marotta TR. Vasavasorum: Another Cause of the Carotid String Sign. AJNR 20: 259-262. February 1999.

4. Cruz JP, Chow M, O’Kelly C, Marotta B, Spears J, Montanera W, Fiorella D and Marotta T. Delayed ipsilateral parenchymal hemorrhage following flow diversion for the treatment of anterior circulation aneurysms. AJNR Am J Neuroradiol. 2012 Apr;33(4):603-8. doi: 10.3174/ajnr.A3065. Epub 2012 Mar 8. Senior Responsible Author.

5. O’Kelly CJ, Spears J, Chow M, Wong J, Boulton M, Weill A, Willinsky RA, Kelly M and Marotta TR. Canadian Experience with the Pipeline Embolization Device for Repair of Unruptured Intracranial Aneurysms. AJNR Am J Neuroradiol. 2012 Aug 2. Senior Responsible Author.

6. Cruz JP, O’Kelly C, Kelly M, Wong JH, Alshaya W, Martin A, Spears J and Marotta TR. Pipeline Embolization Device in Aneurysmal Subarachnoid Hemorrhage. AJNR Am J Neuroradiol. 2012 Oct 11. Senior Responsible Author.

7. Joshi MD, O'Kelly CJ, Krings T, Fiorella D, Marotta TR. Observer variability of an angiographic grading scale used for the assessment of intracranial aneurysms treated with flow-diverting stents.AJNR Am J Neuroradiol. 2013 Aug;34(8):1589-92. doi: 10.3174/ajnr.A3431. Epub 2013 Feb 28.PMID:23449648. Senior Responsible Author

8. Martin AR, Cruz JP, O'Kelly C, Kelly M, Spears J, Marotta TR. Small Pipes: Preliminary Experience with 3-mm or Smaller Pipeline Flow-Diverting Stents for Aneurysm Repair prior to Regulatory Approval.AJNR Am J Neuroradiol. 2015 Mar;36(3):557-61. doi: 10.3174/ajnr.A4170. Epub 2014 Nov 13.PMID:25395659.Senior Responsible Author.


None at this time