Dr. Amer M. Johri


Dr. Amer Johri is a member of the echocardiography group at Queen’s University and the Director of CINQ. He arrived after completing a research/clinical fellowship in imaging at the Massachusetts General Hospital, Boston, USA under the supervision of Drs. M.H. Picard, J. Hung, and J. Passeri. His clinical interests are in 3D echocardiography, quality control in the echo lab, and interventional echocardiography. He also has extensive experience in echo-guided CRT optimization and TEE guided percutaneous aortic valve replacement.

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Research Interests:

The innovation of non-invasive techniques to predict and diagnose atherosclerotic cardiovascular disease with a focus on three-dimensional carotid ultrasound. Ultrasound is used for: assessment of carotid plaque for early detection of atherosclerotic cardiovascular disease (ACVD), enhancing the stress echocardiogram to better predict significant ACVD, integrating genetic biomarkers to predict ACVD, and monitoring response to treatment of ACVD using novel pharmacologic agents.

Other interests are in 3D echocardiography, strain, quality control in the echo lab, interventional echocardiography, and Hand Held Cardiac Ultrasound.

He serves as an executive member of the ASE Standards and Guidelines Committee is actively participating in the development and review this society's position statement on Hand-Held Cardiac Ultrasound.


Selected Publications (students in bold)

  1. Zhu T, DeJong P, Johri AM (2017) Multiple Spontaneous Coronary Artery Dissections: An Uncommon Cause of Acute Coronary Syndrome in a Syrian Refugee. Can J Cardiol., 33(2):292e13-e15.
  2. Moulson N, Taylor T, Simpson CS, Johri AM (2017) Current Practices and Attitudes of Canadian Team Physicians Toward Cardiovascular Preparticipation Screening. Can J Cardiol. 33(1): 162–165.
  3. Johri AM, Herr JE, Li TY, Yau O, Nambi V. (2017) Novel Vascular Carotid Ultrasound Methods to Investigate Plaque Vulnerability. Review. J Am Soc Echocardiogr. 30(2):139-148.
  4. Johri AM, Mantella LE. (2016) Look to Windward: Novel Applications of Vascular Ultrasound. J Am Soc Echocardiogr. 29(11):A23-A24.
  5. Wilkinson JS, Barake W, Smith C, Johri AM (2016). Limitations of Condensed Teaching Strategies to Develop and-Held Cardiac Ultrasonography Skills in Internal Medicine Residents. Canadian Journal of Cardiology 32(8):1034-7.
  6. Johri AM, Behl P, Hétu M-F, Haqqi M, Ewart P, Day AG, Parfrey B, Matangi MF (2016) Carotid Ultrasound Plaque Height is a Sensitive Imaging Biomarker for the Assessment of Significant Coronary Artery Disease. Echocardiography 33(2):281-9.
  7. Jozefacki A, White CA, Shobeiri NS, Hopman WM, Johri AM, Adams MA, Holden RM (2016) Phosphate excretion is decreased in older cardiac patients with ‘normal’ kidney function; an emerging dietary risk factor? Appl Physiol Nutr Metab. 41(4):452-5.
  8. Dunham-Snary KJ, Hong ZG, Xiong PY, Del Paggio JC, Herr JE, Johri AM, Archer SL. (2016) A mitochondrial redox oxygen sensor in the pulmonary vasculature and ductus arteriosus. Pflügers Archiv - European Journal of Physiology 468(1):43-58.
  9. Wang Y, Liu G, Hu H, Li TY, Johri AM, Li X, Wang J. (2015) Stable Encapsulated Air Nanobubbles in Water. Angew Chem Int Ed Engl. 54(48):14291-4.
  10. Al-Turki MA, Patton D, Crean AM, Horlick E, Dhillon R, Johri AM (2015) Spontaneous Thrombosis of a Giant Left Circumflex Artery Draining Into the Coronary Sinus. Case Report. World J Pediatr Congenit Heart Surg. 6(4):640-2
  11. Bhatia, RS, Ivers, N, Cindy X Y, Myers D, Nesbitt G, Edwards J, Yared K, Wadhera R, Wu JC, Wong B, Hansen M, Weinerman A, Shadowitz S, MDi, Johri A, Farkouh M, Thavendiranathan P, Udell JA, Rambihar S, Chow C-M, Hall J, Thorpe KE, Rakowski H, Weiner RB. (2015) Design and methods of the Echo WISELY (Will Inappropriate Scenarios for Echocardiography Lessen SignificantlY) study: An investigator-blinded randomized controlled trial of education and feedback intervention to reduce inappropriate echocardiograms. Am Heart J. 170(2):202-9.
  12. Ryan JJ, Huston J, Kutty S, Hatton ND, Bowman L, Tian L, Herr JE, Johri AM, Archer SL (2015) Right Ventricular Adaptation and Failure in Pulmonary Arterial Hypertension. Can J Cardiology 31(4):391-406. 
  13. Johri AM, Chitty DW, Hua L, Marincheva G, Picard MH. (2015) Assessment of image quality in real time three-dimensional dobutamine stress echocardiography: an integrated 2D/3D approach. Echocardiography 32(3): 496-507.
  14. Johri AM, Armstrong DWJ, Jurt U, Brouillard D, Matangi MF. (2014) ICEBERG: Intimal Carotid Evaluation Before Echocardiography Reveals Global Vascular Risk. Can J Cardiology 30(10): 1183-1189.
  15. Johri AM, Heyland DK, Hétu MF, Crawford B, Spence JD. (2014) Carnitine therapy for the treatment of metabolic syndrome and cardiovascular disease: evidence and controversies. Review. Nutr Metab Cardiovasc Dis. 24(8): 808–814.
  16. Barake W, Zardasht J, Najib SS, Hamilton A, Johri AM. (2014) Peri-Aortic Fluid: A Critical Finding In Acute Aortic Syndrome.Echocardiography 31(8): E259-E260.
  17. Johri AM, Hétu MF, Nambi V. (2014) Carotid Plaque or CIMT: What is the future for carotid US imaging? Review. Curr Cardiovasc Risk Rep 8:386.
  18. Armstrong DW, Tse MY, Wong PG, Ventura NM, Meens JA, Johri AM, Matangi MF, Pang SC. (2014) Gestational hypertension and the developmental origins of cardiac hypertrophy and diastolic dysfunction. Mol Cell Biochem 391:201–209. 
  19. Johri AM. (2014) Generation iUltrasound: Bedside diagnostic imaging with Hand-Held Cardiac Ultrasound. Cardiol J. 21(1):98-9.
  20. Johri AM (2014) One Million Vascular Screening Tests a Year: A Considered Perspective. J Am Soc Echocardiogr. 27(2):A18.
  21. Cawthorn TR, Nickel, C, O’Reilly M, Kafka H, Nair P, Tam, JW, Jackson LC, Sanfilippo AJ, Johri, AM. (2014) Development and evaluation of methodologies for teaching focused cardiac ultrasound skills to medical students. J Am Soc Echocardiogr. 27(3):302-9. 
  22. Almehairi M, Baranchuk A, Johri AM, Caldwell J. (2014) An Unusual Cause of Automatic Mode Switching in the Absence of an Atrial Tachyarrhythmia. Pacing and Clinical Electrophysiology 37(6): 777-780.
  23. Johri A, Barake W, Crawford B, Turashvili G, Rossiter J, Evans GA. (2013) The Velvet Myocardium: Potential Harbinger of Death in Acute Myocarditis? Can J Cardiol. 29(12):1742.e25-7. 
  24. 2 Caldwell J, Johri AM, Baranchuk A, Redfearn D. (2013) Left ventricle to coronary sinus fistula following ventricular tachycardia ablation. Heart Rhythm 10(10):1556-7. Epub 2012 Jun 29.
  25. Matangi MF, Armstrong DJ, Johri AM, Jurt U, Hollett PM, Del Grande RW, DeYoung JP, Niznick JM, Brouillard DD. (2013) Awareness and use of cardiovascular risk scores by family physicians in southeastern Ontario. Open Journal of Preventive Medicine 3(8): 487-490. 
  26. Armstrong DW, Tse MY, O'Tierney PF, Wong PG, Ventura NM, Janzen-Pang JJ, Matangi MF, Johri AM, Croy BA, Adams MA, Pang SC. (2013) Gestational hypertension in atrial natriuretic peptide knockout mice and the developmental origins of salt-sensitivity and cardiac hypertrophy. Regulatory Peptides 186: 108–115.
  27. Johri, AM, Spence, JD. (2013) Barometer in the Storm – Carotid Artery Plaque Quantified by Three-Dimensional Ultrasound. J Am Soc Echocardiogr 26(8): 20A. 
  28. Johri AM, Chitty D, Malik P, Matangi M, Malik P, Mousavi P, Day A, Simpson C. (2013). Can Carotid Bulb Plaque Assessment Rule out Significant Coronary Artery Disease? A Comparison of Plaque Quantification by Two- and Three-dimensional Ultrasound. J Am Soc Echocardiogr, 26(1):86-95.
  29. Johri AM, Hawthorne KM, Malholtra R, Hung J, Baggish A, Picard MH. (2012). Quality Assessment in Dobutamine Stress Echocardiography: What are the Clinical Predictors Associated with a Non-diagnostic Test? Cardiology Research, 3(2):73-79.[Cited by 1]
  30. 27. Miranda RI, Nault M, Johri AM, Simpson CS, Michael KA, Abdollah H, Baranchuk A, Redfearn DP. (2012). Maximal Electrical Separation-Guided Placement of Right Ventricular Lead Improves Responders in Cardiac Resynchronization Defibrillator Therapy.Circ Arrhythm Electrophysiol. 5:927-932. 
  31. Johri AM, Crerar M, Sanfilippo A. (2012). Enhancing the Quality of LVEF Assessment by Echocardiography. US Cardiology, 9(1):40-42.
  32. Johri AM, Rojas C, Witzke C, Palacios I, Passeri J, King ME, Abbara S. (2011). Imaging of Atrial Septal Defects: Echocardiographic and CT Correlation. Heart, 97(17): 1441-1453. 
  33. Jagannath AD, Johri AM, Liberthson R, Larobina M, Passeri JJ, Agnihotri AK. (2011). Quadricuspid Aortic Valve: A Report of 12 Cases and a Review of the Literature. Echocardiography, 28(9):1035-40.
  34. Raje NS, Steele DJR, Lawrimore TM, Johri AM, Sohani AR. (2011). Case Records of the Massachusetts General Hospital – Case 29-2011 — A 66-Year-Old Woman with Cardiac and Renal Failure. NEJM, 365(12): 1029-1138. [Cited by 3]
  35. Gilmour J, Kafka H, Ropchan G, Johri AM. (2011). Anomalous Right Coronary Artery: The Multimodality Hunt for the Origin. Case Reports in Cardiology. Article ID 286598.
  36. Johri AM, Picard MH, Newell J, Marshall J, King ME, Hung J. (2011). Can aTeaching intervention Reduce Interobserver Variability in LVEF Assessment: A Quality Control Exercise in the Echocardiography Lab. JACCi, 4(8):821-9 
  37. Johri AM, Witzke, C, Solis, J, Palacios, IF, Inglessis, I, Picard MH, Passeri JJ. (2011). Real-Time Three-dimensional Transesophageal Echocardiography in Patients with Secundum Atrial Septal Defects: Outcomes following transcatheter Closure.JASE, 24(4) 431-7.
  38. Ramirez FD, Johri AM, Kafka H, Smythe J, Sanfilippo AJ, Simpson CS, Redfearn DP, Baranchuk A. (2011). A post-myomectomy heart: 20 years later. Int J Cardiol., 150(2):E59-61. Epub.
  39. Johri AM, Passeri JJ, Picard MH. Education in Heart. (2010). Three-Dimensional Echocardiography: Approaches and Clinical Utility. Heart. 96(5):390-7