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
Primary Atriopathy in Mitral Valve Prolapse: Echocardiographic Evidence and Clinical Implications	45
Cardiac Magnetic Resonance Imaging Techniques and Applications for Pericardial Diseases	45
Prognostic Utility of Quantitative Perfusion PET in Patients With Prior CABG: Incremental Value of Myocardial Flow Reserve and Coronary Vascular Resistance	43
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
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
Stress-Only CMR Perfusion: Ready for Clinical Application?	40
Complete Resolution of Technetium Pyrophosphate Uptake After Treatment of Transthyretin Cardiac Amyloidosis	40
Mitral Stenosis and Pulmonary Pressure: Rewriting the Classics or Stuck in the Past?	37
Aortitis in Disguise: Cardiomyopathy in a Child With Takayasu Arteritis	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
Modeling of the Tricuspid Valve and Right Ventricle in Hypoplastic Left Heart Syndrome With a Fontan Circulation	33
Not All Prognostic Tools Are Equal: A Sex-Specific Approach to ASCVD Primary Prevention	33
Early Appearance of Myocardial Fibrosis in Restrictive Diabetic Cardiomyopathy	31
Imaging for Transcatheter Mitral Valve Edge-to-Edge Repair for an Unusual Cause of Cardiogenic Shock	30
Positron Emission Tomography Imaging of Vessel Wall Matrix Metalloproteinase Activity in Abdominal Aortic Aneurysm	30