Skip Navigation
Find a Doctor


Photo of Dr. Hiroshi Ashikaga

Hiroshi Ashikaga, MD PhD

Assistant Professor of Medicine and Biomedical Engineering
Assistant Professor of Medicine
Appointment Phone


Main Location

The Johns Hopkins Hospital

View All Locations
Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Assistant Professor of Medicine and Biomedical Engineering
  • Assistant Professor of Medicine
  • Assistant Professor of Biomedical Engineering

Centers & Institutes

  • Heart and Vascular Institute


Arrhythmia, Atrial Fibrillation, Atrial Flutter, Bradycardia, Cardiac Electrophysiology, Cardiology, Cardiovascular Disease, Cardiovascular MRI, Cardioversion, Catheter Ablation Therapy, Defibrillators, Device Therapy, Heart Block, Heart Disease, Heart Failure, Implantable Cardioverter-Defibrillator Therapy, Irregular Heartbeat, Pacemakers, Palpitations, Paroxysmal Supraventricular Tachycardia, Sudden Cardiac Death, Supraventricular Tachycardia, Syncope, Tachycardias, Tilt Table Test, Ventricular Arrhythmias, Wolff-Parkinson-White Syndrome

Research Interests

Electrophysiology Technology Development; Image-Guided Diagnosis and Intervention for Arrhythmia; Cardiovascular MRI/CT; Medical Imaging Physics; Signal/Image Processing; Mathematical Modeling; Atrial/Ventricular Fibrillation; Device Therapy for Heart Failure; Cardiac Biomechanics


Dr. Ashikaga received an M.D. and a Ph.D. degrees from the University of Tokyo, Japan. He completed his clinical training in Internal Medicine at the University of Tokyo and Beth Israel Medical Center, where he served as a Chief Resident. He received his research training in Biomedical Engineering and Cardiovascular MRI at the University of California, San Diego and the National Institutes of Health. He also completed clinical training in Cardiology and Cardiac Electrophysiology at the Johns Hopkins Hospital. He is currently an Assistant Professor of Medicine and Biomedical Engineering at the Johns Hopkins University School of Medicine.


  • English
  • Japanese


Heart Rhythm Society
American Heart Association
American College of Cardiology
Additional Resources +
  • Education +


    • University of Tokyo (BunkyoTokyo) (2007)
    • University of Tokyo (BunkyoTokyo) (1996)


    • Beth Israel Medical Center / Internal Medicine (New York NY ) (2001)
    • University of Tokyo / Internal Medicine (BunkyoTokyo) (1997)


    • Johns Hopkins University School of Medicine / Cardiac Electrophysiology (Baltimore MD ) (2012)
    • Johns Hopkins University School of Medicine / Cardiology (Baltimore MD ) (2010)
    • National Cancer Institute NIH (Bethesda MD ) (2006)
    • University of California San Diego / Cardiology (San Diego CA ) (2002)


    • Clinical Cardiac Electrophysiology, American Board of Internal Medicine (2012)
    • Cardiovascular Disease, American Board of Internal Medicine (2010)
    • Internal Medicine, American Board of Internal Medicine (2010)
  • Research & Publications +

    Selected Publications


    Ashikaga H, Criscione JC, Omens JH, Covell JW, Ingels NB, Jr. Transmural left ventricular mechanics underlying torsional recoil during relaxation. Am J Physiol Heart Circ Physiol 286: H640-H647, 2004 (PMCID: PMC2954110)

    Ashikaga H, Omens JH, Ingels NB, Jr, Covell JW. Transmural mechanics at left ventricular epicardial pacing site. Am J Physiol Heart Circ Physiol 286: H2401-H2407, 2004 (PMCID: PMC2965026)

    Ashikaga H, Omens JH, Covell JW. Time-dependent remodeling of transmural architecture underlying abnormal ventricular geometry in chronic volume overload heart failure. Am J Physiol Heart Circ Physiol 287: H1994-H2002, 2004 (PMCID: PMC2842928)

    Harrington KB, Rodriguez F, Cheng A, Langer F, Ashikaga H, Daughters GT, Criscione JC, Ingels NB, Jr., Miller DC. Direct measurement of transmural laminar architecture in the anterolateral wall of the ovine left ventricle: new implications for wall thickening mechanics. Am J Physiol Heart Circ Physiol 288: H1324-H1330, 2005

    Ashikaga H, Covell JW, Omens JH. Diastolic dysfunction in volume overload hypertrophy is associated with abnormal shearing of myolaminar sheets. Am J Physiol Heart Circ Physiol 288: H2603-H2610, 2005 (PMCID: PMC2822838)

    Ashikaga H, Mickelsen SR, Ennis DB, Rodriguez I, Kellman P, Wen H, McVeigh ER. Electromechanical analysis of infarct border zone in chronic myocardial infarction. Am J Physiol Heart Circ Physiol 289: H1099-H1105, 2005 (PMCID: PMC2396317)

    Mickelsen SR, Ashikaga H, Raval A, DeSilva R, McVeigh ER, Kusumoto FA. Transvenous access to the pericardial space: an approach to epicardial lead implantation for cardiac resynchronization therapy. Pacing Clin Electrophysiol 28: 1018-24, 2005

    Moreau-Villger V, Delingette H, Sermesant M, Ashikaga H, McVeigh ER, Ayache N. Building maps of local apparent conductivity of the epicardium with a 2-D electrophysiological model of the heart. IEEE Trans Biomed Eng 53: 1457-66, 2006

    Dickfeld T, Kato R, Zviman MM, Nazarian S, Dong J, Ashikaga H, Lardo AC, Berger RD, Calkins H, Halperin HR. Characterization of acute and subacute radiofrequencey ablation lesions with nonenhanced magnetic resonance imaging. Heart Rhythm 4: 208-14, 2007

    Ashikaga H, Coppola BA, Hopenfeld B, Leifer ES, McVeigh ER, Omens JH. Transmural dispersion of myofiber mechanics: implications for electrical heterogeneity in vivo. J Am Coll Cardiol 49: 909-16, 2007 (PMCID: PMC2572715)

    Ciaccio EJ, Ashikaga H, Kaba RA, Cervantes D, Hopenfeld B, Wit AL, Peters NS, McVeigh E, Garan H, Coromilas J. Model of reentrant ventricular tachycardia based on infarct border zone geometry predicts reentrant circuit features as determined by activation mapping. Heart Rhythm 4: 1034-45, 2007 (PMCID: PMC2626544)

    Hopenfeld B, Ashikaga H, McVeigh ER. Geodesic based registration of sensor data and anatomical surface image data. Ann Biomed Eng 35: 1771-81, 2007 (PMCID: PMC2842929)

    Ashikaga H, Sasano T, Dong J, Zviman MM, Evers R, Hopenfeld B, Castro V, Helm RH, Dickfeld T, Nazarian S, Donahue JK, Berger RD, Calkins H, Abraham MR, Marbn E, Lardo AC, McVeigh ER, Halperin HR. Magnetic resonance-based anatomical analysis of scar-related ventricular tachycardia: implications for catheter ablation. Circ Res 101: 939-47, 2007 (PMCID: PMC2842927)

    Jbsis PD, Ashikaga H, Wen H, Rothstein EC, Horvath KA, McVeigh ER, Balaban RS. Visceral pericardium: macromolecular structure and contribution to passive mechanical properties of the left ventricle. Am J Physiol Heart Circ Physiol 293: H3379-H3387, 2007 (PMCID: PMC2878718)

    Ashikaga H, Coppola BA, Yamazaki KG, Villarreal FJ, Omens JH, Covell JW. Changes in regional myocardial volume during the cardiac cycle: implications for transmural blood flow and cardiac structure. Am J Physiol Heart Circ Physiol 295: H610-H618, 2008 (PMCID: PMC2519196)

    Sasano T, Abraham MR, Chang KC, Ashikaga H, Mills KJ, Holt DP, Hilton J, Nekolla SG, Dong J, Lardo AC, Helperin H, Dannals RF, Marbn E, Bengel FM. Abnormal sympathetic innervation of viable myocardium and the substrate of ventricular tachycardia after myocardial infarction. J Am Coll Cardiol 51: 2266-75, 2008

    Nazarian S, Kolandaivelu A, Zviman MM, Meininger GR, Kato R, Susil RC, Roguin R, Dickfeld TL, Ashikaga H, Calkins H, Berger RD, Blumke DA, Lardo AC, Halperin HR. Feasibility of real-time magnetic resonance imaging for catheter guidance in electrophysiology studies. Circulation 118: 223-9, 2008 (PMCID: PMC2826501)

    Ashikaga H, van der Spoel TIG, Coppola BA, Omens JH. Transmural myocardial mechanics during isovolumic contraction. JACC Cardiovasc Imaging 2: 202-211, 2009 (PMCID: PMC2821599)

    Hopenfeld B and Ashikaga H. Origin of electrocardiographic U wave: Effects of M cells and dynamic gap junction coupling. Ann Biomed Eng 38: 1060-70, 2010 (PMCID: PMC2842929)

    Ashikaga H, Leclercq C, Wang J, Kass DA, McVeigh ER. Hemodynamic improvement in cardiac resynchronization does not require improvement in left ventricular rotation mechanics: three-dimensional tagged MRI analysis. Circ Cardiovasc Img 3: 456-63, 2010 (PMCID: PMC2965024)

    Estner HL, Zviman MM, Herzka D, Miller F, Castro V, Nazarian S, Ashikaga H, Dori Y, Berger RD, Calkins H, Lardo AC, Halperin HR. The critical isthmus sites of ischemic ventricular tachycardia are in zones of tissue heterogeneity, visualized by magnetic resonance imaging. Heart Rhythm 8: 1942-9, 2011

    Ashikaga H, Omens JH. In vivo validation of longitudinal-circumferential area change ratio to estimate myofiber shortening in the heart. IEEE Trans Biomed Eng 59: 1391-7, 2012



    Kawada S, Suzuki Y, Hinohara S, Koide S, Ono Y, Ashikaga H. Cancer screening with PET: advantages and limitations. Rinsho Byori 55: 656-67, 2007 (Japanese)

    Koide S, Ashikaga H, Suzuki Y, Kawada S. Screening of coronary artery disease using myocardial perfusion positron emission tomography in asymptomatic population. Vita Medical Science Review 24: 369-76, 2007 (Japanese)

    Ashikaga H. Management of ventricular tachycardia. Resident Note, Sep 2011 (Japanese)

    Ashikaga H, Kolandaivelu A, Tandri H, Nazarian S, Halperin HR. Cardiac Magnetic Resonance Imaging (MRI): Diagnostic and prognostic value for the patient with cardiac arrhythmias. Heart Rhythm, In Press

    Ashikaga H. Management of arrhythmia after acute coronary syndrome. Intensivist (Japanese), In Press



    Ashikaga H and Marine JE. Prevention of atrial fibrillation: Another good reason to recommend statins for women? Heart 95: 693-4, 2009

    Ashikaga H, Blumenthal RS, Jones SR. Utility of ezetimibe. Am J Cardiol 103: 1321-2, 2009



    Ashikaga H, Abreu R, Schneider R. Propranolol administration in a patient with thyroid storm. Ann Intern Med 132:681-2, 2000

    Ashikaga H, McVeigh ER, Omens JH. Reply: On the mechanisms of transmural dispersion of myocardial mechanics. J Am Coll Cardiol 50: 650, 2007



    Ashikaga H, Ben-Yehuda O, Chien KR. Biotechnology and cardiovascular medicine: Recombinant protein therapy. In Molecular Basis of Cardiovascular Disease, 2/e, A Companion to Braunwalds Heart Disease, Edited by Chien KR. Philadelphia, W.B. Saunders Company. Chapter 1, p 1-15, 2004

    Ashikaga H, Ben-Yehuda O, Chien KR. Coronary restenosis. In Molecular Basis of Cardiovascular Disease, 2/e, A Companion to Braunwalds Heart Disease, Edited by Chien KR. Philadelphia, W.B. Saunders Company. Chapter 25, p 455-469, 2004

    Ashikaga H and Chien KR. Blood coagulation and atherothrombosis. In Molecular Basis of Cardiovascular Disease, 2/e, A Companion to Braunwalds Heart Disease, Edited by Chien KR. Philadelphia, W.B. Saunders Company. Chapter 28, p 498-518, 2004

    Ashikaga H and Villarreal FJ. Prospects for gene therapy for the fibrosed heart: Targeting regulators of extracellular matrix turnover. In Interstitial Fibrosis In Heart Failure, Edited by Villarreal FJ. New York, Springer Science+Business Media, Inc. Chapter 17, p 343-354, 2005

    Ashikaga H and McVeigh ER. Imaging of myocardial mechanics. In Novel Techniques for Imaging the Heart: Cardiac MR and CT, Edited by Di Carli MF and Kwong RY. American Heart Association. Oxford, Blackwell Publishing. Chapter 21, p 328-335, 2008

    Ashikaga H. Myofiber orientation and left ventricular mechanics. In Diastology, Edited by Ohki T and Takenaka K. Tokyo, Japan. Bunkodo Publishing. Chapter 3, p 15-22, 2010 (Japanese)

    Ashikaga H, Kolandaivelu A, Tandri H, Nazarian S, Halperin HR. CT and MR Imaging for electrophysiology. In Cardiac Electrophysiology: From Cell to Bedside, 6/e, Edited by Zipes DP and Jalife J. In Press

  • Academic Affiliations & Courses +
  • Activities & Honors +


    2002 - Postdoctoral Fellowship, American Heart Association
    2003 - Travel Award, American Federation for Medical Research
    2003 - Travel Award, American College of Cardiology
    2006 - Fellowship Award, Astellas Foundation
    2006 - Finalist and Honorable Mention, Young Investigator Award, Heart Rhythm Society
    2006 - Elite Reviewer, Journal of the American College of Cardiology
    2010 - Howard S. Silverman Award, Division of Cardiology, Johns Hopkins University School of Medicine
    2011 - Winner, Young Investigator Award, Asia-Pacific Heart Rhythm Society
    2011 - Finalist, Melvin Judkins Young Clinical Investigator Award, American Heart Association

    Professional Activities

    2000 - Chief Resident and Instructor of Medicine, Beth Israel Medical Center and Albert Einstein College of Medicine
    2012 - Assistant Professor of Medicine and Biomedical Engineering, Johns Hopkins University School of Medicine
  • Videos & Media +
  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Carnegie 568
    Baltimore, MD 21287
    Phone: 410-502-7861
    Appointment Phone: 443-997-0270
    Fax: 410-502-0231
    Location Map
    Johns Hopkins Cardiology - GBMC
    6701 N. Charles Street
    Main Hospital, Suite 5104
    Baltimore, MD 21204
    Phone: 443-849-8989
    Appointment Phone: 443-997-0270
    Fax: 443-849-8988
    Location Map


    • Medicine - Electrophysiology
    • Medicine - Cardiology

Is This You? Edit Profile


© The Johns Hopkins University, The Johns Hopkins Hospital, and Johns Hopkins Health System. All rights reserved.