Research Interests

Dr. Johri's research interests are in cardiovascular disease (atherosclerosis) and Echocardiography: Specifically in carotid ultrasound, 3D plaque quantification, 3D echocardiography, quality control in the echo lab, interventional echocardiography, Strain, and Hand Held Cardiac Ultrasound (point-of-care POCUS).

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.

His laboratory is supported by the Canada Foundation for Innovation (CFI), SEAMO, Ontario Centre of Excellence, and the Heart and Stroke Foundation of Canada (HSF).

Ongoing Research Programs:


Ultrasound carotid plaque characterization in a community based cardiac clinic to predict cardiovascular outcome.

Co-Investigator: Dr. Murray Matangi, Dr. Jasna Deluce
Translational Medicine in Clinical Engineering – Bringing Echo Particle Tracking Velocimetry (EchoPTV) into the Clinical Realm in the Investigation of Novel Plaque Vulnerability Features.

Co-Investigator: Dr. David Rival (Mechanical Engineering)
Novel Ultrasound-Guided Microcarriers for Atherosclerosis Targeted Therapy (NUGATT)
Co-Investigator: Dr. Jianhua Zhou, Sun Yat-sen University
Carotid Contrast-Enhanced Ultrasound (CEUS) as a Risk Stratification Tool for Cardiovascular Disease.
Co-Investigator: Tina Zhu.
Vascular Imaging as a Barometer for Early Detection of Cardiovascular Disease: The VIBE Program.
The Heart of an Athlete – The Queen’s University Screening Study.
Co-Investigator: Nathaniel Moulson.