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R. Iwanochko · SciRah

Researcher profile · Semantic Scholar

R. Iwanochko

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R. Iwanochko — researcher profile on SciRah

h-index: 21
Works: 71
Citations: 1,905

Most-cited papers

F-18-fluorodeoxyglucose positron emission tomography imaging-assisted management of patients with severe left ventricular dysfunction and suspected coronary disease: a randomized, controlled trial (PARR-2).
R. Beanlands, G. Nichol, E. Huszti, D. Humen +10 more
2007Journal of the American College of Cardiology466 citations Open access
Semantic Scholar
Positron emission tomography and recovery following revascularization (PARR-1): the importance of scar and the development of a prediction rule for the degree of recovery of left ventricular function.
R. Beanlands, T. Ruddy, R. deKemp, R. Iwanochko +10 more
2002Journal of the American College of Cardiology190 citations Open access
Semantic Scholar
Reversible regional wall motion abnormalities on exercise technetium-99m-gated cardiac single photon emission computed tomography predict high-grade angiographic stenoses.
L. Emmett, R. Iwanochko, M. Freeman, A. Barolet +2 more
2002Journal of the American College of Cardiology126 citations Open access
Semantic Scholar
Cardiovascular magnetic resonance demonstration of the spectrum of morphological phenotypes and patterns of myocardial scarring in Anderson-Fabry disease
D. Deva, K. Hanneman, Qin Li, M. Ng +5 more
2016Journal of Cardiovascular Magnetic Resonance123 citations Open access
Semantic Scholar
Trial of an Intervention to Improve Acute Heart Failure Outcomes.
Douglas S. Lee, S. Straus, M. Farkouh, Peter C. Austin +20 more
2022New England Journal of Medicine104 citations Open access
Semantic Scholar
Feasibility and accuracy of left ventricular volumes and ejection fraction determination by fundamental, tissue harmonic, and intravenous contrast imaging in difficult-to-image patients.
E. Yu, C. Sloggett, R. Iwanochko, H. Rakowski +1 more
2000Journal of the American Society of Echocardiography96 citations
Semantic Scholar
Use of Myocardial T1 Mapping at 3.0 T to Differentiate Anderson-Fabry Disease from Hypertrophic Cardiomyopathy.
G. Karur, Sean Robison, R. Iwanochko, Chantal F. Morel +6 more
2018Radiology67 citations
Semantic Scholar
Left Ventricular Hypertrophy and Late Gadolinium Enhancement at Cardiac MRI Are Associated with Adverse Cardiac Events in Fabry Disease.
K. Hanneman, G. Karur, S. Wasim, R. Wald +2 more
2019Radiology62 citations
Semantic Scholar
Combined simultaneous FDG-PET/MRI with T1 and T2 mapping as an imaging biomarker for the diagnosis and prognosis of suspected cardiac sarcoidosis
Edward Cheung, Sarah Ahmad, Matthew Aitken, Rosanna Chan +8 more
2021European Journal of Hybrid Imaging58 citations Open access
Semantic Scholar
Evaluation of a comprehensive cardiovascular magnetic resonance protocol in young adults late after the arterial switch operation for d-transposition of the great arteries
D. Tobler, M. Motwani, R. Wald, S. Roche +5 more
2014Journal of Cardiovascular Magnetic Resonance50 citations Open access
Semantic Scholar
Diagnostic and prognostic significance of transient ischemic dilation (TID) in myocardial perfusion imaging: A systematic review and meta-analysis
M. Alama, C. Labos, H. Emery, R. Iwanochko +3 more
2017Journal of Nuclear Cardiology49 citations Open access
Semantic Scholar
Systolic Myocardial Mechanics in Patients with Anderson–Fabry Disease with and without Left Ventricular Hypertrophy and in Comparison to Nonobstructive Hypertrophic Cardiomyopathy
C. Gruner, F. Verocai, S. Carasso, M. Vannan +5 more
2012Echocardiography49 citations
Semantic Scholar
Combined Cardiac Fluorodeoxyglucose-Positron Emission Tomography/Magnetic Resonance Imaging Assessment of Myocardial Injury in Patients Who Recently Recovered From COVID-19.
K. Hanneman, C. Houbois, Alice Schoffel, Dakota Gustafson +6 more
2022JAMA cardiology48 citations Open access
Semantic Scholar
Ontario multidetector computed tomographic coronary angiography study: field evaluation of diagnostic accuracy.
B. Chow, M. Freeman, J. Bowen, L. Levin +13 more
2011Archives of Internal Medicine48 citations
Semantic Scholar
Incremental value of parametric quantitative assessment of myocardial perfusion by triggered Low-Power myocardial contrast echocardiography.
E. Yu, D. Skyba, H. Leong-Poi, C. Sloggett +4 more
2004Journal of the American College of Cardiology41 citations Open access
Semantic Scholar
Genetic Testing for Diagnosis of Hypertrophic Cardiomyopathy Mimics
S. Hoss, M. Habib, Josh Silver, M. Care +7 more
2020Circulation Genomic and Precision Medicine39 citations
Semantic Scholar
Loss of base-to-apex circumferential strain gradient assessed by cardiovascular magnetic resonance in Fabry disease: relationship to T1 mapping, late gadolinium enhancement and hypertrophy
Shobhit Mathur, J. Dreisbach, G. Karur, R. Iwanochko +5 more
2019Journal of Cardiovascular Magnetic Resonance39 citations Open access
Semantic Scholar
Evolution of Lymphadenopathy at PET/MRI after COVID-19 Vaccination
K. Hanneman, R. Iwanochko, P. Thavendiranathan
2021Radiology23 citations Open access
Semantic Scholar
Cardiovascular outcomes are predicted by exercise-stress myocardial perfusion imaging: Impact on death, myocardial infarction, and coronary revascularization procedures.
Douglas S. Lee, F. Verocai, M. Husain, Darar Al Khdair +3 more
2011American Heart Journal23 citations
Semantic Scholar
Evaluation of outcome and cost-effectiveness using an FDG PET-guided approach to management of patients with coronary disease and severe left ventricular dysfunction (PARR-2): rationale, design, and methods.
R. Beanlands, G. Nichol, T. Ruddy, R. deKemp +9 more
2003Controlled Clinical Trials22 citations
Semantic Scholar
Prognostic Significance of Cardiac Magnetic Resonance Imaging Late Gadolinium Enhancement in Fabry Disease.
K. Hanneman, G. Karur, S. Wasim, Chantal F. Morel +1 more
2018Circulation21 citations Open access
Semantic Scholar
Left ventricular aneurysm in a patient with mucopolysaccharidosis type VI (Maroteaux-Lamy syndrome): clinical and pathological correlation.
G. Oudit, J. Butany, W. Williams, S. Siu +2 more
2007Cardiovascular pathology20 citations
Semantic Scholar
Determination of left ventricular ejection fraction using intravenous contrast and a semiautomated border detection algorithm.
E. Yu, D. Skyba, C. Sloggett, Michal Jamorski +4 more
2003Journal of the American Society of Echocardiography19 citations
Semantic Scholar
Left Ventricular Mass and Wall Thickness Measurements Using Echocardiography and Cardiac MRI in Patients with Fabry Disease: Clinical Significance of Discrepant Findings.
C. O'Brien, I. Britton, G. Karur, R. Iwanochko +5 more
2020Radiology: Cardiothoracic Imaging17 citations Open access
Semantic Scholar
Contrast-enhanced quantitation of left ventricular ejection fraction: what is the best method?
B. Dias, Eric H. C. Yu, C. Sloggett, R. Iwanochko +2 more
2001Journal of the American Society of Echocardiography14 citations
Semantic Scholar
Combined FDG PET/MRI versus Standard-of-Care Imaging in the Evaluation of Cardiac Sarcoidosis.
C. Marschner, Faisal Aloufi, Matthew Aitken, Edward M. Cheung +6 more
2023Radiology: Cardiothoracic Imaging12 citations Open access
Semantic Scholar
Myocardial Inflammation at FDG PET/MRI and Clinical Outcomes in Symptomatic and Asymptomatic Participants after COVID-19 Vaccination
C. Marschner, P. Thavendiranathan, Dakota Gustafson, K. Howe +8 more
2023Radiology: Cardiothoracic Imaging12 citations Open access
Semantic Scholar
Clinical Significance of Papillary Muscles on Left Ventricular Mass Quantification Using Cardiac Magnetic Resonance Imaging
Amna Al-Arnawoot, C. O'Brien, G. Karur, E. Nguyen +4 more
2020Journal of thoracic imaging10 citations
Semantic Scholar
Prognostic value of myocardial perfusion contrast echocardiography in patients with suggested or known ischemic heart disease.
Dora Bašić, S. Siu, D. Skyba, C. Sloggett +3 more
2006Journal of the American Society of Echocardiography10 citations
Semantic Scholar
Case report: long-term outcome post-heart transplantation in a woman with Fabry’s disease
F. Verocai, J. Clarke, R. Iwanochko
2010Journal of Inherited Metabolic Disease9 citations
Semantic Scholar
Images in cardiovascular medicine. Left ventricular aneurysm associated with mucopolysaccharidosis type VI syndrome (Maroteaux-Lamy syndrome).
G. Oudit, J. Butany, W. Williams, J. Clarke +1 more
2007Circulation8 citations
Semantic Scholar
Cardiovascular outcomes after pharmacologic stress myocardial perfusion imaging.
Douglas S. Lee, M. Husain, Xuesong Wang, P. Austin +1 more
2016American Heart Journal5 citations
Semantic Scholar
In vitro analysis of colour Doppler flow with the use of proximal isovelocity surface area: improved flow estimates using a nonhemispherical model.
R. Iwanochko, B. Hiscoke, R. Sellens, C. Small +1 more
1999Canadian Journal of Cardiology5 citations
Semantic Scholar
Increased Spread of Native T1 Assessed by MRI is a Marker of Cardiac Involvement in Fabry Disease.
G. Karur, Shobhit Mathur, Chantal F. Morel, R. Iwanochko +2 more
2020AJR. American journal of roentgenology4 citations
Semantic Scholar
Prognostic impact of SPECT-MPI after renal transplantation
Wael Abuzeid, R. Iwanochko, Xuesong Wang, S. Kim +2 more
2017Journal of Nuclear Cardiology4 citations
Semantic Scholar
Cost-effectiveness of 64-slice CT angiography compared to conventional coronary angiography based on a coverage with evidence development study in Ontario
R. Goeree, G. Blackhouse, J. Bowen, D. O'Reilly +12 more
2013Expert review of pharmacoeconomics & outcomes research4 citations
Semantic Scholar
Left Ventricular Aneurysm Associated With Mucopolysaccharidosis Type VI Syndrome (Maroteaux–Lamy Syndrome)
Gavin Y. Oudit, Jagdish W. Butany, William G. Williams, J. Clarke +1 more
20074 citations Open access
Semantic Scholar
Relapse in Cardiac Sarcoidosis: Patterns and Predictors on Serial 18F-FDG PET Imaging.
F. Gerodias, L. Godoy, K. Magtibay, F. Darabi +7 more
2026Journal of Nuclear Cardiology2 citations
Semantic Scholar
Real-world effectiveness of early revascularization in stable coronary artery disease with moderate or severe ischemia
F. Gerodias, R. Iwanochko, Peter Austin, Xuesong Wang +9 more
2025American Heart Journal Plus: Cardiology Research and Practice2 citations Open access
Semantic Scholar
Erratum: Relationship between MRI derived right ventricular mass and left ventricular involvement in patients with anderson-fabry disease
M. Ng, Qin Li, Anna Calleja, D. Deva +4 more
2015Journal of Cardiovascular Magnetic Resonance2 citations Open access
Semantic Scholar
Electrocardiographic prediction of the severity of posterior wall perfusion defects on rest technetium-99m Sestamibi myocardial perfusion imaging.
R. Petrovici, L. Emmett, Douglas S. Lee, M. Husain +1 more
2005Journal of Electrocardiology2 citations
Semantic Scholar
Acute inflammatory pericarditis secondary to cardiac sarcoidosis evaluated by 18F-fluorodeoxyglucose PET/CT imaging
O. Albassam, T. Redwood, N. Bowers, R. Iwanochko
2020Journal of Nuclear Cardiology1 citations
Semantic Scholar
CMR demonstration of multiple morphological phenotypes in Anderson-Fabry disease
D. Deva, K. Hanneman, Qin Li, P. Thavendiranathan +3 more
2015Journal of Cardiovascular Magnetic Resonance1 citations Open access
Semantic Scholar
Relationship between MRI derived right ventricular mass and left ventricular involvement in patients with anderson-fabry disease
Qin Li, M. Ng, Anna Calleja, D. Deva +4 more
2015Journal of Cardiovascular Magnetic Resonance1 citations Open access
Semantic Scholar
Ontario Multi-detector Computed Tomographic Coronary Angiography Study (OMCAS): An Evaluation of Diagnostic Accuracy
J. Bowen, M. Freeman, R. Hopkins, Y. Provost +10 more
20101 citations
Semantic Scholar
Abnormal endothelial‐dependent and ‐independent flow‐mediated dilation in a group of patients with Fabry disease: a possible relationship with abnormalities of diastolic filling
R. Iwanochko, J. Wherrett, S. Siu, N. Merchant +3 more
20021 citations
Semantic Scholar
Sex-related differences in testing and diagnostic thresholds usingTechnetium-99m pyrophosphate imaging in the evaluation of transthyretin cardiac amyloidosis
C. Deluca, S. Babbar, J. Nunes, C. Akincioglu +10 more
2026European Journal of Heart Failure0 citations
Semantic Scholar
Risk-Stratified Transitional Care and Cardiovascular Hospitalizations by Sex: A Secondary Analysis of a Randomized Clinical Trial.
Douglas S. Lee, C. Wang, P. Austin, Sharon E. Straus +17 more
2026JAMA Network Open0 citations Open access
Semantic Scholar
REAL-WORLD EFFECTIVENESS OF EARLY REVASCULARIZATION IN STABLE CORONARY DISEASE WITH MODERATE-SEVERE PERFUSION DEFECTS ON SPECT-MYOCARDIAL PERFUSION IMAGING (MPI)
F. Gerodias, R. Iwanochko, Peter Austin, Xuesong Wang +8 more
2025Journal of the American College of Cardiology0 citations Open access
Semantic Scholar
Diagnosis and prognosis of coronary artery disease using artificial intelligence and nuclear cardiology: A systematic review
Y. Dai, F. Gerodias, W. Douglas, S. Y. Lee +6 more
2025European Heart Journal0 citations
Semantic Scholar

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