Get started
Author

H. Helen Ko

Observed names: H. Ko, Hyun-Sook H. Ko, Hyun-Sook Helen Ko
OpenAlex ID: A5111835396
Multimodality Imaging Guidelines for Patients with Repaired Tetralogy of Fallot: A Report from the American Society of Echocardiography
2014 · Anne Marie Valente, Stephen Cook, et al. · Journal of the American Society of Echocardiography · 317
PDF
Three-dimensional Echocardiography in Congenital Heart Disease: An Expert Consensus Document from the European Association of Cardiovascular Imaging and the American Society of Echocardiography
2016 · John Simpson, Leo Lopez, et al. · Journal of the American Society of Echocardiography · 160
PDF
Recommendations for Multimodality Assessment of Congenital Coronary Anomalies: A Guide from the American Society of Echocardiography
2020 · Peter Frommelt, Leo Lopez, et al. · Journal of the American Society of Echocardiography · 133
PDF
Application of Virtual Three-Dimensional Models for Simultaneous Visualization of Intracardiac Anatomic Relationships in Double Outlet Right Ventricle
2015 · Kanwal M. Farooqi, Santosh C. Uppu, et al. · Pediatric Cardiology · 70
Color Doppler Tissue Imaging for Evaluation of Right Ventricular Systolic Function in Patients with Congenital Heart Disease
2005 · Irene D. Lytrivi, Wyman W. Lai, et al. · Journal of the American Society of Echocardiography · 55
Frequency of Aberrant Subclavian Artery, Arch Laterality, and Associated Intracardiac Anomalies Detected by Echocardiography
2007 · Prema Ramaswamy, Irene D. Lytrivi, et al. · The American Journal of Cardiology · 52
Normal Values for Left Ventricular Volume in Infants and Young Children by the Echocardiographic Subxiphoid Five-Sixth Area by Length (Bullet) Method
2011 · Irene D. Lytrivi, Puneet Bhatla, et al. · Journal of the American Society of Echocardiography · 43
Two-Dimensional Speckle-Tracking-Derived Segmental Peak Systolic Longitudinal Strain Identifies Regional Myocardial Involvement in Patients with Myocarditis and Normal Global Left Ventricular Systolic Function
2015 · Santosh C. Uppu, Amee Shah, et al. · Pediatric Cardiology · 40
Echocardiographic diagnosis of clinically silent congenital coronary artery anomalies
2007 · Irene D. Lytrivi, Austin H. Wong, et al. · International Journal of Cardiology · 34
Applicability of Published Guidelines for Assessment of Left Ventricular Diastolic Function in Adults to Children with Restrictive Cardiomyopathy: An Observational Study
2014 · Nao Sasaki, Mario Garcia, et al. · Pediatric Cardiology · 32
Imaging of congenital coronary artery anomalies
2011 · Rowan Walsh, James C. Nielsen, et al. · Pediatric Radiology · 32
Regional differences in right ventricular systolic function as determined by cine magnetic resonance imaging after infundibulotomy
2004 · Irene D. Lytrivi, H. Helen Ko, et al. · The American Journal of Cardiology · 30
Utility of Doppler Tissue Imaging-Derived Indices in Identifying Subclinical Systolic Ventricular Dysfunction in Children With Restrictive Cardiomyopathy
2011 · Nao Sasaki, Mario Garcia, et al. · Pediatric Cardiology · 19
The Accuracy of Echocardiographic Assessment of Left Ventricular Size in Children by the 5/6 Area × Length (Bullet) Method
2010 · James C. Nielsen, Irene D. Lytrivi, et al. · Echocardiography · 18
Common Origin of the Innominate and Carotid Arteries: Prevalence, Nomenclature, and Surgical Implications
2006 · Jason C. Katz, Sujata Chakravarti, et al. · Journal of the American Society of Echocardiography · 18
Malattached septum primum and deficient septal rim predict unsuccessful transcatheter closure of atrial communications
2015 · Stefan H. Ostermayer, Shubhika Srivastava, et al. · Catheterization and Cardiovascular Interventions · 16
The role of right ventricular function in paediatric idiopathic dilated cardiomyopathy
2012 · Abraham Groner, Jen Yau, et al. · Cardiology in the Young · 16
Prevalence and Outcomes of Coronary Artery Ectasia Associated With Isolated Congenital Coronary Artery Fistula
2014 · Cheryl A. Vinograd, Stefan Ostermayer, et al. · The American Journal of Cardiology · 15
A Comparison of Echocardiographic Techniques in Determination of Arterial Elasticity in the Pediatric Population
2009 · Michael Fahey, H. Helen Ko, et al. · Echocardiography · 14
Congenital Muscular Ventricular Septal Aneurysm: Report of Four Cases and Review of the Literature
2007 · Thieu P. Nguyen, Shubhika Srivastava, et al. · Pediatric Cardiology · 14
Left Atrial Appendage: Variations in Morphology and Position Causing Pitfalls in Pediatric Echocardiographic Diagnosis
2007 · Prema Ramaswamy, Irene D. Lytrivi, et al. · Journal of the American Society of Echocardiography · 12
Echocardiographic Myocardial Deformation Evaluation of Right Ventricular Function in Comparison with CMRI in Repaired Tetralogy of F allot: A Cross‐Sectional and Longitudinal Validation Study
2013 · Shubhika Srivastava, Yishay Salem, et al. · Echocardiography · 9
Ventricular septal flattening at end systole falsely predicts right ventricular hypertension in patients with ostium primum atrial septal defects
2002 · James C. Nielsen, Steven A. Kamenir, et al. · Journal of the American Society of Echocardiography · 7
Double Outlet Right Ventricle
2018 · Irene D. Lytrivi, H. Helen Ko · 3
PDF
Comparison of two-dimensional echocardiography methods of ventricular volume quantification to cardiovascular magnetic resonance in left ventricular volume overload
2017 · Simon Lee, Stephanie E. Chin, et al. · Progress in Pediatric Cardiology · 3
Works count: 28
Citation count: 1,167
H-index: 16
I10-index: 21
Year
Topic
Type