Publications by authors named "Helen Ko"

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Recommendations for Multimodality Assessment of Congenital Coronary Anomalies: A Guide from the American Society of Echocardiography: Developed in Collaboration with the Society for Cardiovascular Angiography and Interventions, Japanese Society of Echocardiography, and Society for Cardiovascular Magnetic Resonance.
Peter Frommelt, Leo Lopez, V Vivian Dimas, Benjamin Eidem, B Kelly Han, H Helen Ko

J Am Soc Echocardiogr· March 2020

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Comparison of chloral hydrate and pentobarbital sedation for pediatric echocardiography.
Madhusudan Ganigara, Shubhika Srivastava, Preeti Malik, Sherman Fong, Helen Ko

Echocardiography· April 2019

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Validation of Right Atrial Area as a Measure of Right Atrial Size and Normal Values of in Healthy Pediatric Population by Two-Dimensional Echocardiography.
Hari Rajagopal, Santosh C Uppu, Justin Weigand, Simon Lee, Ruchika Karnik, Helen Ko

Pediatr Cardiol· June 2018

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Impact of changing indications and increased utilization of fetal echocardiography on prenatal detection of congenital heart disease.
Jonathan Komisar, Shubhika Srivastava, Miwa Geiger, John Doucette, Helen Ko

Congenit Heart Dis· January 2017

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Three-dimensional Echocardiography in Congenital Heart Disease: An Expert Consensus Document from the European Association of Cardiovascular Imaging and the American Society of Echocardiography.
John Simpson, Leo Lopez, Philippe Acar, Mark K Friedberg, Nee S Khoo, H Helen Ko

J Am Soc Echocardiogr· January 2017

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Three-dimensional echocardiography in congenital heart disease: an expert consensus document from the European Association of Cardiovascular Imaging and the American Society of Echocardiography.
John Simpson, Leo Lopez, Philippe Acar, Mark Friedberg, Nee Khoo, Helen Ko

Eur Heart J Cardiovasc Imaging· October 2016

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Application of Virtual Three-Dimensional Models for Simultaneous Visualization of Intracardiac Anatomic Relationships in Double Outlet Right Ventricle.
Kanwal M Farooqi, Santosh C Uppu, Khanh Nguyen, Shubhika Srivastava, H Helen Ko

Pediatr Cardiol· January 2016

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Malattached septum primum and deficient septal rim predict unsuccessful transcatheter closure of atrial communications.
Stefan H Ostermayer, Shubhika Srivastava, John T Doucette, H Helen Ko, Miwa Geiger

Catheter Cardiovasc Interv· December 2015

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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.
Santosh C Uppu, Amee Shah, Justin Weigand, James C Nielsen, H Helen Ko

Pediatr Cardiol· June 2015

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Applicability of published guidelines for assessment of left ventricular diastolic function in adults to children with restrictive cardiomyopathy: an observational study.
Nao Sasaki, Mario Garcia, H Helen Ko, Sangeeta Sharma, Ira A Parness

Pediatr Cardiol· February 2015

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Prevalence and outcomes of coronary artery ectasia associated with isolated congenital coronary artery fistula.
Cheryl A Vinograd, Stefan Ostermayer, Irene D Lytrivi, H Helen Ko, Ira Parness

Am J Cardiol· July 2014

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Multimodality imaging guidelines for patients with repaired tetralogy of fallot: a report from the AmericanSsociety of Echocardiography: developed in collaboration with the Society for Cardiovascular Magnetic Resonance and the Society for Pediatric Radiology.
Anne Marie Valente, Stephen Cook, Pierluigi Festa, H Helen Ko, Rajesh Krishnamurthy

J Am Soc Echocardiogr· February 2014

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The role of right ventricular function in paediatric idiopathic dilated cardiomyopathy.
Abraham Groner, Jen Yau, Irene D Lytrivi, H Helen Ko, James C Nielsen

Cardiol Young· June 2013

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Echocardiographic myocardial deformation evaluation of right ventricular function in comparison with CMRI in repaired tetralogy of Fallot: a cross-sectional and longitudinal validation study.
Shubhika Srivastava, Yishay Salem, Samprit Chatterjee, H Helen Ko, Wyman W Lai

Echocardiography· February 2013

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Normal values of left atrial volume in pediatric age group using a validated allometric model.
Puneet Bhatla, James C Nielsen, Helen H Ko, John Doucette, Irene D Lytrivi

Circ Cardiovasc Imaging· November 2012

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Imaging of congenital coronary artery anomalies.
Rowan Walsh, James C Nielsen, H Helen Ko, Javier Sanz, Shubhika Srivastava

Pediatr Radiol· December 2011

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Normal values for left ventricular volume in infants and young children by the echocardiographic subxiphoid five-sixth area by length (bullet) method.
Irene D Lytrivi, Puneet Bhatla, H Helen Ko, Jen Yau, Miwa K Geiger

J Am Soc Echocardiogr· February 2011

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The accuracy of echocardiographic assessment of left ventricular size in children by the 5/6 area x length (bullet) method.
James C Nielsen, Irene D Lytrivi, H Helen Ko, Jen Yau, Puneet Bhatla

Echocardiography· July 2010

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A comparison of echocardiographic techniques in determination of arterial elasticity in the pediatric population.
Michael Fahey, H Helen Ko, Shubhika Srivastava, Wyman W Lai, Samprit Chatterjee

Echocardiography· May 2009

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Echocardiographic diagnosis of clinically silent congenital coronary artery anomalies.
Irene D Lytrivi, Austin H Wong, H Helen Ko, Samir Chandra, James C Nielsen

Int J Cardiol· June 2008

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Frequency of aberrant subclavian artery, arch laterality, and associated intracardiac anomalies detected by echocardiography.
Prema Ramaswamy, Irene D Lytrivi, Maria T Thanjan, Thieu Nguyen, Shubhika Srivastava, H Helen Ko

Am J Cardiol· March 2008

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Congenital muscular ventricular septal aneurysm: report of four cases and review of the literature.
Thieu P Nguyen, Shubhika Srivastava, H Helen Ko, Wyman W Lai

Pediatr Cardiol· January 2008

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Left atrial appendage: variations in morphology and position causing pitfalls in pediatric echocardiographic diagnosis.
Prema Ramaswamy, Irene D Lytrivi, Shubhika Srivastava, Sangeeta Sharma, H Helen Ko

J Am Soc Echocardiogr· August 2007

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Common origin of the innominate and carotid arteries: prevalence, nomenclature, and surgical implications.
Jason C Katz, Sujata Chakravarti, H Helen Ko, Irene D Lytrivi, Shubhika Srivastava

J Am Soc Echocardiogr· December 2006

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Color Doppler tissue imaging for evaluation of right ventricular systolic function in patients with congenital heart disease.
Irene D Lytrivi, Wyman W Lai, H Helen Ko, James C Nielsen, Ira A Parness

J Am Soc Echocardiogr· October 2005

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