Contact information
Colleges
Rina Ariga
MBBS BSc (Hons) DPhil MRCP
Visiting Academic Clinical Lecturer
- Extraordinary Junior Research Fellow, The Queen's College, Oxford
- Consultant Cardiologist, specialist in heart failure, cardiomyopathy and imaging
I use computational approaches to ECG and cardiac imaging data to improve mechanistic understanding of cardiovascular disease and to help find new treatment targets.
I currently work on Hypertrophic Cardiomyopathy (HCM), a common inherited heart muscle disease which can cause sudden cardiac death and heart failure. The disease is highly heterogeneous and the gene-negative majority have dissimilar features to gene-positive patients. Yet clinical management strategies are equivalent. My work aims to individualise patient care by using pathophysiological insights gained from deep learning of ECG and Cardiac Magnetic Resonance (CMR) data from UK Biobank and the international HCMRegistry study.
My doctoral research pioneered Diffusion Tensor CMR in HCM. This novel imaging method measures heart muscle disarray, which underlies sudden cardiac death – previously only possible to see at post-mortem. In collaboration with colleagues from Computer Science, we applied machine learning and computational simulation to integrate ECG and imaging to detect subtle electrical changes indicative of such underlying defects. I have received several prizes and awards for my DPhil work, and my publication findings were reported in the media.
I am training in clinical trials through an MSc at Nuffield Department of Population Health. I hope this grounding in the design and delivery of randomised trials will help me translate key research innovations into evidence-based treatments.
Key publications
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Identification of Myocardial Disarray in Patients With Hypertrophic Cardiomyopathy and Ventricular Arrhythmias
Journal article
ARIGA R. et al, (2019), Journal of the American College of Cardiology
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Distinct ECG Phenotypes Identified in Hypertrophic Cardiomyopathy Using Machine Learning Associate With Arrhythmic Risk Markers
Journal article
Lyon AL. et al, (2018), Frontiers in Physiology
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ECG phenotypes in hypertrophic cardiomyopathy caused by distinct mechanisms: apico-basal repolarization gradients versus Purkinje-myocardial coupling abnormalities.
Journal article
Lyon A. et al, (2018), EP-Europace
Recent publications
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Myocardial disarray and fibrosis across hypertrophic cardiomyopathy stages associate with ECG markers of arrhythmic risk.
Journal article
Ashkir Z. et al, (2025), Eur Heart J Cardiovasc Imaging, 26, 218 - 228
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Differentiating Left Ventricular Remodeling in Aortic Stenosis From Systemic Hypertension.
Journal article
Mahmod M. et al, (2024), Circ Cardiovasc Imaging, 17
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Hypertrophic cardiomyopathy detection with artificial intelligence electrocardiography in international cohorts: an external validation study.
Journal article
Siontis KC. et al, (2024), Eur Heart J Digit Health, 5, 416 - 426
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Metabolic profiling of aortic stenosis and hypertrophic cardiomyopathy identifies mechanistic contrasts in substrate utilization.
Journal article
Pal N. et al, (2024), FASEB J, 38
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Left ventricular anatomy in obstructive hypertrophic cardiomyopathy: beyond basal septal hypertrophy.
Journal article
Hermida U. et al, (2023), Eur Heart J Cardiovasc Imaging, 24, 807 - 818