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Thomas Ryan

Active 1978–2026

72
Papers
18,748
Citations
63
h-index
68
i10-index

Citations

Citations per year for Thomas Ryan1981: 4 citations1982: 4 citations1983: 5 citations1984: 1 citations1985: 4 citations1986: 7 citations1987: 9 citations1988: 9 citations1989: 8 citations1990: 11 citations1991: 14 citations1992: 20 citations1993: 39 citations1994: 28 citations1995: 37 citations1996: 44 citations1997: 49 citations1998: 53 citations1999: 87 citations2000: 55 citations2001: 78 citations2002: 87 citations2003: 131 citations2004: 116 citations2005: 163 citations2006: 146 citations2007: 133 citations2008: 126 citations2009: 123 citations2010: 105 citations2011: 105 citations2012: 102 citations2013: 108 citations2014: 101 citations2015: 97 citations2016: 73 citations2017: 82 citations2018: 55 citations2019: 243 citations2020: 270 citations2021: 213 citations2022: 132 citations2023: 100 citations2024: 164 citations2025: 58 citations2026: 1 citations

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 1,506 citing papers, 30.3% of this breakdownUnited Kingdom: 334 citing papers, 6.7% of this breakdownItaly: 323 citing papers, 6.5% of this breakdownFrance: 250 citing papers, 5% of this breakdownSpain: 222 citing papers, 4.5% of this breakdownGermany: 214 citing papers, 4.3% of this breakdownCanada: 209 citing papers, 4.2% of this breakdownNetherlands: 205 citing papers, 4.1% of this breakdownAustralia: 150 citing papers, 3% of this breakdownBelgium: 119 citing papers, 2.4% of this breakdownChina: 113 citing papers, 2.3% of this breakdownSwitzerland: 107 citing papers, 2.1% of this breakdown
0%30.3%Other 24.6%

Institutions

Fields

  • Medicine88.4%
  • Biochemistry, Genetics and Molecular Biology2.4%
  • Immunology and Microbiology2.2%
  • Health Professions1.9%
  • Computer Science1.6%
  • Engineering1.3%
  • Other2.2%

Topics

  • Infective Endocarditis Diagnosis and Management9.5%
  • Cardiac Imaging and Diagnostics6.2%
  • Cardiac Valve Diseases and Treatments5.8%
  • Cardiovascular Function and Risk Factors5.7%
  • Antimicrobial Resistance in Staphylococcus4.3%
  • Cardiac, Anesthesia and Surgical Outcomes3.6%
  • Other64.9%

Coauthors

All papers

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  1. Proposed Modifications to the Duke Criteria for the Diagnosis of Infective Endocarditis

    Authors: Jingxiao Li, Daniel J. Sexton, Nathan W. Mick, Richard E. Nettles, Vance G. Fowler, Thomas Ryan, Thomas M. Bashore, G. R. Corey - Clinical Infectious Diseases 2000 cited by 4,019

  2. The Clinical Use of Stress Echocardiography in Non-Ischaemic Heart Disease: Recommendations from the European Association of Cardiovascular Imaging and the American Society of Echocardiography

    Authors: Patrizio Lancellotti, Patricia A. Pellikka, Werner Budts, Farooq A. Chaudhry, Erwan Donal, Raluca Dulgheru, Thor Edvardsen, Madalina Garbi, Jong‐Won Ha, Garvan C. Kane, Joe Kreeger, Luc Mertens, Philippe Pîbarot, Eugenio Picano, Thomas Ryan, Jeane Mike Tsutsui, Albert Varga - European Heart Journal - Cardiovascular Imaging 2016 cited by 434

  3. The Myeloid Transcription Factor KLF2 Regulates the Host Response to Polymicrobial Infection and Endotoxic Shock

    Authors: Ganapati H. Mahabeleshwar, Daiji Kawanami, Nikunj Sharma, Yoichi Takami, Guangjin Zhou, Hong Shi, Lalitha Nayak, Darwin Jeyaraj, Robert Grealy, Mary White, Ross McManus, Thomas Ryan, Patrick Leahy, Zhiyong Lin, Saptarsi M. Haldar, G. Brandon Atkins, Hector R. Wong, Jerry B. Lingrel, Mukesh K. Jain - Immunity 2011 cited by 152

  4. ACC/AHA Guideline Update for Perioperative Cardiovascular Evaluation for Noncardiac Surgery—Executive Summary

    Authors: Kim A. Eagle, Peter B. Berger, Hugh Calkins, Bernard Chaitman, Gordon A. Ewy, Kirsten E. Fleischmann, Lee A. Fleisher, James B. Froehlich, Richard J. Gusberg, Jeffrey A. Leppo, Thomas Ryan, Robert C. Schlant, William L. Winters, Raymond J. Gibbons, Elliott M. Antman, Joseph S. Alpert, David P. Faxon, Valentı́n Fuster, Gabriel Gregoratos, Alice K. Jacobs, Loren F. Hiratzka, Richard O. Russell, Sidney C. Smith - Anesthesia & Analgesia 2002 cited by 1,690

  5. Standardized myocardial segmentation and nomenclature for tomographic imaging of the heart. A statement for healthcare professionals from the Cardiac Imaging Committee of the Council on Clinical Cardiology of the American Heart Association.

    Authors: Manuel D Cerqueira, Neil J. Weissman, Vasken Dilsizian, Alice K. Jacobs, Sanjiv Kaul, Waren K Laskey, Dudley J. Pennell, John A. Rumberger, Thomas Ryan, Mario S Verani - Journal of Nuclear Cardiology 2002 cited by 793

  6. An echocardiographic index for separation of right ventricular volume and pressure overload

    Authors: Thomas Ryan, Olivera Petrovic, James C. Dillon, Harvey Feigenbaum, Mary Jo Conley, William F. Armstrong - Journal of the American College of Cardiology 1985 cited by 490

  7. Role of Echocardiography in Evaluation of Patients With Staphylococcus aureusBacteremia: Experience in 103 Patients

    Authors: Vance G. Fowler, Jennifer Li, G. Ralph Corey, Jerry J. Boley, Kieren A. Marr, Ajay K. Gopal, Li Kong, Geoffrey S. Gottlieb, Carolyn L. Donovan, Daniel J. Sexton, Thomas Ryan - Journal of the American College of Cardiology 1997 cited by 420

  8. Should coronary artery bypass graft surgery patients with mild or moderate aortic stenosis undergo concomitant aortic valve replacement?

    Authors: William T. Smith, T. Bruce Ferguson, Thomas Ryan, Carolyn Landolfo, Eric D. Peterson - Journal of the American College of Cardiology 2004 cited by 100

  9. Sepsis-associated thrombocytopenia

    Authors: Caroline M. Larkin, Maria José Santos-Martínez, Thomas Ryan, Marek W. Radomski - Thrombosis Research 2016 cited by 75

  10. Quantification of Chronic Functional Mitral Regurgitation by Automated 3-Dimensional Peak and Integrated Proximal Isovelocity Surface Area and Stroke Volume Techniques Using Real-Time 3-Dimensional Volume Color Doppler Echocardiography

    Authors: Paaladinesh Thavendiranathan, Shizhen Liu, Saurabh Datta, Sanjay Rajagopalan, Thomas Ryan, Stephen R. Igo, Matthew Jackson, Stephen H. Little, Nathalie De Michelis, Mani A. Vannan - Circulation Cardiovascular Imaging 2012 cited by 137

  11. A Randomized Trial of Pocket-Echocardiography Integrated Mobile Health Device Assessments in Modern Structural Heart Disease Clinics

    Authors: Sanjeev P. Bhavnani, Srikanth Sola, David B. Adams, Ashwin Venkateshvaran, P.K. Dash, Partho P. Sengupta, Partho P. Sengupta, Sanjeev P. Bhavnani, Srikanth Sola, Ashwin Venkateshvaran, David B. Adams, Partho P. Sengupta, Partho P. Sengupta, Thomas Ryan, Jagat Narula, James D. Thomas, Roberto M. Lang, Patricia A. Pellikka, Voleti Choudhary, Vijay Iyer, Banajit Barooah, Srikanth Sola, Reeta Varyani, Anand Lingan, Venkatesh Murugan, Prayaag Kini, Ashwin Venkateshvaran, Nalini Srinivas, Asha C. Barooah, Guruprasad Subbarao, C Shivakumar, muniyandi s subramaniyan, Shantanu P. Sengupta, Manish Bansal, Sk. Abdul Rahaman, Vijaysinh Namdeo Patil, Narayana R. Kumar, Mohammad Y. Gahlot, Imran M. Damani, Rahul Gulati, Shreedhar Joshi, Sanjay Kumar Dubey, Jesu Krupa, Sara Irfan, Rangasamy Balasubramanian Vidhyakar, Narendra Bidarkar, B.K. Shantesh, Swapna S. Chavan, R. Chandramohan, Vijaya Kumar, Shilpi Tirkey, Guru Prasad, Shivaprakash S. Lakshmana, Ramesh M. Malkar, V. G. Manjunath, Kiran Kumar Reddy, L.G. Ramesha, Sunita Kumbhalkar, Jyoti A. Thadlani, Tahaseen Mahaboob Basha, Syed Asif Hafeez, V Leelavathi, Robin Mathews, Melissa A. Daubert, Jayne Cleve, Egle Burdulis, Natalie Fauss, Georgeanne Lammertin, Bharatbhushan Patel, Evelina Petrovets, Dipti Shah, Kara Thurmond, David Tomberlin, Hemavathi Umamaheswar, Ankita Kadakia - JACC. Cardiovascular imaging 2017 cited by 78

  12. 2019 ACC/AHA/ASE Advanced Training Statement on Echocardiography (Revision of the 2003 ACC/AHA Clinical Competence Statement on Echocardiography)

    Authors: Susan E. Wiegers, Thomas Ryan, James A. Arrighi, Samuel M. Brown, Barry Canaday, Julie B. Damp, José L. Díaz‐Gómez, Vincent M. Figueredo, Mario J. García, Linda D. Gillam, Brian P. Griffin, James N. Kirkpatrick, Kyle W. Klarich, George K. Lui, Scott Maffett, Tasneem Z. Naqvi, Amit R. Patel, Marie‐France Poulin, Geoffrey Rose, Madhav Swaminathan - Catheterization and Cardiovascular Interventions 2019 cited by 74

  13. 3D Echocardiography: A Review of the Current Status and Future Directions

    Authors: Judy Hung, Roberto M. Lang, Frank A. Flachskampf, Stanton K. Shernan, Marti McCulloch, David B. Adams, James D. Thomas, Mani A. Vannan, Thomas Ryan - Journal of the American Society of Echocardiography 2007 cited by 337

  14. Staphylococcus aureus Bacteremia in Patients With Permanent Pacemakers or Implantable Cardioverter-Defibrillators

    Authors: Anna Lisa Chamis, Gail Peterson, Christopher H. Cabell, G. Ralph Corey, Robert Sorrentino, Ruth Ann Greenfield, Thomas Ryan, L. Barth Reller, Vance G. Fowler - Circulation 2001 cited by 288

  15. The risk of stroke and death in patients with aortic and mitral valve endocarditis

    Authors: Christopher H. Cabell, Kyle Pond, Gail Peterson, David T. Durack, G. Ralph Corey, Deverick J. Anderson, Thomas Ryan, Andrea S. Lukes, Daniel J. Sexton - American Heart Journal 2001 cited by 222

  16. 2019 ACC/AHA/ASE Advanced Training Statement on Echocardiography (Revision of the 2003 ACC/AHA Clinical Competence Statement on Echocardiography): A Report of the ACC Competency Management Committee

    Authors: Susan E. Wiegers, Thomas Ryan, James A. Arrighi, Samuel M. Brown, Barry Canaday, Julie B. Damp, José L. Díaz‐Gómez, Vincent M. Figueredo, Mario J. García, Linda D. Gillam, Brian P. Griffin, James N. Kirkpatrick, Kyle W. Klarich, George K. Lui, Scott Maffett, Tasneem Z. Naqvi, Amit R. Patel, Marie‐France Poulin, Geoffrey Rose, Madhav Swaminathan - Circulation Cardiovascular Imaging 2019 cited by 29

  17. ACC/AHA Guideline Update for Perioperative Cardiovascular Evaluation for Noncardiac Surgery—Executive Summary A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Update the 1996 Guidelines on Perioperative Cardiovascular Evaluation for Noncardiac Surgery)

    Authors: Kim A. Eagle, Peter B. Berger, Hugh Calkins, Bernard Chaitman, Gordon A. Ewy, Kirsten E. Fleischmann, Lee A. Fleisher, James B. Froehlich, Richard J. Gusberg, Jeffrey A. Leppo, Thomas Ryan, Robert C. Schlant, William L. Winters, Raymond J. Gibbons, Elliott M. Antman, Joseph S. Alpert, David P. Faxon, Valentı́n Fuster, Gabriel Gregoratos, Alice K. Jacobs, Loren F. Hiratzka, Richard O. Russell, Sidney C. Smith - Circulation 2002 cited by 408

  18. Dobutamine stress echocardiography as a predictor of cardiac events associated with aortic surgery

    Authors: Stephen G. Lalka, Stephen G. Sawada, Michael C. Dalsing, Dolores F. Cikrit, Alan P. Sawchuk, Roxanne L. Kovacs, Douglas S. Segar, Thomas Ryan, Harvey Feigenbaum - Journal of Vascular Surgery 1992 cited by 165

  19. Evolving Trends in the Use of Echocardiography

    Authors: Alan S. Pearlman, Thomas Ryan, Michael H. Picard, Pamela S. Douglas - Journal of the American College of Cardiology 2007 cited by 153

  20. Automated Quantification of Mitral Inflow and Aortic Outflow Stroke Volumes by Three-Dimensional Real-Time Volume Color-Flow Doppler Transthoracic Echocardiography: Comparison with Pulsed-Wave Doppler and Cardiac Magnetic Resonance Imaging

    Authors: Paaladinesh Thavendiranathan, Shizhen Liu, Saurabh Datta, Michael Walls, Adrien Nitinunu, Thomas Van Houten, Nicholas A. Tomson, Laura Vidmar, Bogdan Georgescu, Yang Wang, Seshadri Srinivasan, Nathalie De Michelis, Subha V. Raman, Thomas Ryan, Mani A. Vannan - Journal of the American Society of Echocardiography 2011 cited by 104

  21. Changing Patient Characteristics and the Effect on Mortality in Endocarditis

    Authors: Christopher H. Cabell, James G. Jollis, Gail Peterson, G. Ralph Corey, Deverick J. Anderson, Daniel J. Sexton, Christopher W. Woods, L. Barth Reller, Thomas Ryan, Vance G. Fowler - Archives of Internal Medicine 2002 cited by 548

  22. American society of echocardiography

    Authors: Thomas Ryan, Bijoy K. Khandheria - Journal of the American Society of Echocardiography 2000 cited by 349

  23. THE OCCURRENCE OF SEVERE SEPSIS AND SEPTIC SHOCK ARE RELATED TO DISTINCT PATTERNS OF CYTOKINE GENE EXPRESSION

    Authors: Michael J. O’Dwyer, Arun K. Mankan, Patrick Stordeur, Brian O’Connell, Edel Duggan, Mary White, Dermot Kelleher, Ross McManus, Thomas Ryan - Shock 2006 cited by 203

  24. Perioperative predictors of extubation failure and the effect on clinical outcome after cardiac surgery

    Authors: Mohamed Y. Rady, Thomas Ryan - Critical Care Medicine 1999 cited by 199