OOIR: Observatory of International Research

Papers

(The H4-Index of Circulation-Cardiovascular Imaging is 30. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-06-01 to 2026-06-01.)

Article	Citations
In This Issue of the Journal	111
Value of Ischemia in Prognosis and Guiding Revascularization Among Patients With Chronic Coronary Artery Disease	83
Imaging-Based FFR: How Many Steps Toward Replacement for Wire-Based FFR on A Journey of A Thousand Miles	69
Seeing the Unseen: Contrast-Free MRI for Predicting Thrombolytic Susceptibility	66
Interesting Cause of Pseudopleural Effusion: Giant Left Atrium	65
MRI-Extracellular Volume Fraction Versus Histological Amyloid Load in Cardiac Amyloidosis: The Importance of T2 Mapping	62
Routine Coronary Atherosclerosis Imaging in the Cardiovascular Risk Assessment of Prediabetes and Diabetes	56
Prognostic Significance of Noninvasive Simultaneous Renal and Cardiac Perfusion: Interrogating Mechanisms of Cardiovascular-Kidney Interactions	54
Combined Anatomic and Functional Testing Identifies Patients With Obstructive Coronary Artery Disease Who Benefit From Revascularization	52
‘Form fruste’ Aortoventricular Tunnel: Preoperative Computed Tomographic Virtual Dissection Defines This Unusual Variant	50
Usefulness of Aortic Valve Calcification in Patients With Low-Flow Aortic Stenosis	48
Echocardiography: Past, Present, and Future	47
Cardiac Magnetic Resonance Imaging Techniques and Applications for Pericardial Diseases	45
Primary Atriopathy in Mitral Valve Prolapse: Echocardiographic Evidence and Clinical Implications	45
Prognostic Utility of Quantitative Perfusion PET in Patients With Prior CABG: Incremental Value of Myocardial Flow Reserve and Coronary Vascular Resistance	43
Mechanical Mitral Valve Avulsion and Mitral-Aortic Junction Pseudoaneurysm Following Surgical Treatment of Mitral Valve Aneurysm and Severe Aortic Insufficiency in a Patient With Spondyloarthropathy:	41
Response by Hijazi et al to Letter Regarding Article, “Deep Learning-Derived Cardiac Chamber Volumes and Mass From PET/CT Attenuation Scans: Associations With Myocardial Flow Reserve and Heart Failure	41
Unique Case of Coronary Artery Rupture and Acute Myocardial Infarction Triggered by a Karate Punch: Evaluation of the Hit Site by CT Imaging	41
Chronic Subepicardial Hematoma: A Multimodality Imaging Diagnostic Approach After Elective Percutaneous Transluminal Coronary Angioplasty	41
Complete Resolution of Technetium Pyrophosphate Uptake After Treatment of Transthyretin Cardiac Amyloidosis	40
Stress-Only CMR Perfusion: Ready for Clinical Application?	40
Aortitis in Disguise: Cardiomyopathy in a Child With Takayasu Arteritis	37
Mitral Stenosis and Pulmonary Pressure: Rewriting the Classics or Stuck in the Past?	37
Multicenter Evaluation of Myocardial Flow Reserve as a Prognostic Marker for Mortality in ¹³ N-Ammonia PET Myocardial Perfusion Imaging	36
In This Issue of the Journal	35

Elevated Lipoprotein(a) With Zero Coronary Artery Calcium: A Silent Threat or a Clinical Paradox?	34
Not All Prognostic Tools Are Equal: A Sex-Specific Approach to ASCVD Primary Prevention	33
Modeling of the Tricuspid Valve and Right Ventricle in Hypoplastic Left Heart Syndrome With a Fontan Circulation	33
Early Appearance of Myocardial Fibrosis in Restrictive Diabetic Cardiomyopathy	31
Positron Emission Tomography Imaging of Vessel Wall Matrix Metalloproteinase Activity in Abdominal Aortic Aneurysm	30
Imaging for Transcatheter Mitral Valve Edge-to-Edge Repair for an Unusual Cause of Cardiogenic Shock	30