Gardar Sigurdsson, MD

Associate Professor, Cardiology

Gardar Sigurdsson

Contact Info

Mailing Address:
420 Delaware Street SE
MMC 508
Minneapolis, MN 55455

Administrative Assistant Name
Bill Clark

Administrative Phone
(612) 626-1391

Administrative Email

Administrative Fax Number
(612) 626-4411

Associate Professor, Cardiology

Director, Imaging Section


MD, University of Iceland

Internal Medicine Residency, University of Iowa, Iowa City, IA

Cardiovascular Fellowship, University of Minnesota, Minneapolis, MN

Cardiovascular Imaging Fellowship, Cleveland Clinic, Cleveland, OH


Integrating advanced cardiac imaging with clinical care


Computed Tomography of the heart & echocardiography

Awards & Recognition

  • Ernest O Theilen Award (2000)
  • Cournand & Comroe Young Investigator prize in Cardiopulmonary and Critical Care (2003)
  • RSNA Research Trainee Award (2004)
  • Innovator Award CCF (2005)

Professional Associations

  • American College of Cardiology
  • Society of Cardiovascular Computed Tomography
  • Radiology Society of North America


Research Summary/Interests

  • Advanced Cardiovascular Imaging


  • Sigurdsson G. Improved Precision of Initial Chest Pain Evaluation With Fractional Flow Reserve Computed Tomography. J Am Heart Assoc. 2017 Aug 22;6(8). pii: e006835. doi: 10.1161/JAHA.117.006835. PubMed PMID: 28862972; PubMed Central
    PMCID: PMC5586478.
  • Bashir M, Sigurdsson G, Horwitz PA, Zahr F. Simultaneous transfemoral aortic and transseptal mitral valve replacement utilising SAPIEN 3 valves in native aortic and mitral valves. EuroIntervention. 2017 Jan 20;12(13):1649-1652. doi: 10.4244/EIJ-D-16-00953. PubMed PMID: 28105998.
  • Sigurdsson G, Carrascosa P, Yamani MH, Greenberg NL, Perrone S, Lev G, Desai MY, Garcia MJ. Detection of transplant coronary artery disease using multidetector computed tomography with adaptative multisegment reconstruction. J Am Coll Cardiol. 2006 Aug 15;48(4):772-8. Epub 2006 Jul 25. PubMed PMID: 16904548.
  • Murphy RT, Sigurdsson G, Mulamalla S, Agler D, Popovic ZB, Starling RC, Wilkoff BL, Thomas JD, Grimm RA. Tissue synchronization imaging and optimal left ventricular pacing site in cardiac resynchronization therapy. Am J Cardiol. 2006 Jun 1;97(11):1615-21. Epub 2006 Apr 7. PubMed PMID: 16728225.
  • Aufderheide TP, Sigurdsson G, Pirrallo RG, Yannopoulos D, McKnite S, von Briesen C, Sparks CW, Conrad CJ, Provo TA, Lurie KG. Hyperventilation-induced hypotension during cardiopulmonary resuscitation. Circulation. 2004 Apr 27;109(16):1960-5. Epub 2004 Apr 5. PubMed PMID: 15066941.
  • Sigurdsson G Jr, Gudnason V, Sigurdsson G, Humphries SE. Interaction between a polymorphism of the apo A-I promoter region and smoking determines plasma levels of HDL and apo A-I. Arterioscler Thromb. 1992 Sep;12(9):1017-22. PubMed PMID: 1525115.


Academic Interests and Focus

Advanced Cardiovascular Imaging


Board Certifications

  • Internal Medicine
  • Cardiovascular Medicine
  • Echocardiography
  • Computed Tomography

Clinical Interests

Advanced Cardiovascular Imaging

Hospital Privileges

University of Minnesota Medical Center, Fairview Hospitals & Clinics