All Stories

  1. Comprehensive Interpretation of Reference Values for Cardiac Volume-Related Metrics: When is Normal Truly Normal?

    Article • World Scientific Annual Review of Biomechanics, August 2026, World Scientific Pub Co Pte Lt

    Peter Kerkhof

  2. Ejection Fraction in the Fast Lane

    Article • Echocardiography, August 2026, Wiley

    Peter Kerkhof

  3. Myocardial Layer‐Specific Longitudinal Strain for Identification of the Culprit Vessel in Elderly Patients With NSTE‐ACS

    Article • Echocardiography, February 2026, Wiley

    Peter Kerkhof

  4. Analytical Expression for the Dependence of Ejection Fraction on End-systolic or End-diastolic Volume

    Article • July 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rienzi A Diaz Navarro, Peter Kerkhof

  5. Impact of Willem Einthoven (1860-1927) and his contemporary Nobel prize laureates on present day medical technology

    Article • Salud y Ciencia, June 2025, Universidad de Valparaiso Chile

    Peter Kerkhof

  6. How to Evaluate MADness Concerning the Valvular Apparatus?

    Article • Echocardiography, April 2025, Wiley

    Peter Kerkhof

  7. Cardiology without ejection fraction

    Article • British Journal of Cardiology, January 2025, Medinews (Cardiology), Ltd.

    Professor Rienzi A Diaz Navarro, Peter Kerkhof

  8. A comprehensive analysis of ratio‐based metrics in physiology

    Article • The Journal of Physiology, December 2024, Wiley

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  9. How the Crystal Ball Helps to Beat Ejection Fraction as Predictor of Mortality After Myocardial Infarction

    Article • Echocardiography, October 2024, Wiley

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  10. What characterizes device‐related thrombosis following LAAC, if ejection fraction fails to shine?

    Article • Echocardiography, August 2024, Wiley

    Peter Kerkhof

  11. TMAD enters the toolbox for evaluating selected heart transplant patients

    Article • Echocardiography, May 2024, Wiley

    Peter Kerkhof

  12. Statistics at high‐altitudes: Relevance for the interpretation of metrics that reveal cardiac morphology and performance

    Article • Echocardiography, March 2024, Wiley

    Peter Kerkhof

  13. On atrial cardiopathy associated biomarkers and embolic stroke of undetermined source (ESUS)

    Article • Echocardiography, February 2024, Wiley

    Peter Kerkhof

  14. Cardiac ejection fraction as a problematic metric for heart failure phenotyping

    Article • British Journal of Cardiology, January 2024, Medinews (Cardiology), Ltd.

    Professor Rienzi A Diaz Navarro, Peter Kerkhof

  15. Sex differences in diagnostic modalities of atherosclerosis in the macrocirculation

    Article • Atherosclerosis, November 2023, Elsevier

    Peter Kerkhof

  16. Sex differences in diagnostic modalities of coronary artery disease: Evidence from coronary microcirculation

    Article • Atherosclerosis, November 2023, Elsevier

    Peter Kerkhof

  17. Heterogeneity of patients phenotyped as heart failure with mildly reduced ejection fraction

    Article • European Heart Journal, November 2023, Oxford University Press (OUP)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  18. Which metrics are preferred to evaluate left ventricular function during successive stages of COPD?

    Article • Journal of Clinical Ultrasound, October 2023, Wiley

    Peter Kerkhof

  19. Are left atrial strain metrics and a biochemical marker superior to traditional left atrial size measures when identifying occult atrial fibrillation?

    Article • Journal of Clinical Ultrasound, September 2023, Wiley

    Peter Kerkhof

  20. Ventricular Ejection Fraction and Global Strains in Connection with the Volume Regulation Graph

    Article • July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  21. Sex-specific Evaluation of Ventricular Ejection Fraction and End-Systolic Volume Applied to Cardiac Resynchronization Therapy

    Article • July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  22. Pulse Pressure is Sex-Specifically Associated with the Ratio of Diastolic and Systolic Arterial Pressure in Healthy Children, and Differently During Night Versus Daytime Recordings

    Article • July 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  23. Sex-Specific Evaluation of Arterial Stiffness and Left Ventricular Remodeling

    Article • JACC Advances, July 2023, Elsevier

    Peter Kerkhof

  24. Early echocardiographic and electrophysiological characteristics of subclinical hyperthyroidism

    Article • Journal of Clinical Ultrasound, April 2023, Wiley

    Peter Kerkhof

  25. Non-invasive coronary flow velocity reserve assessment predicts adverse outcome in women with unstable angina without obstructive coronary artery stenosis

    Article • April 2023, SAGE Publications

    Peter Kerkhof

  26. Prediction of a super‐response to cardiac resynchronization therapy as guided by left ventricular end‐systolic volume size

    Article • Journal of Clinical Ultrasound, March 2023, Wiley

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  27. Association between angiographic and biochemical indicators of the severity of coronary stenosis

    Article • Journal of Clinical Ultrasound, March 2023, Wiley

    Peter Kerkhof

  28. Coronary Flow Velocity Reserve by Echocardiography: Beyond Atherosclerotic Disease

    Article • Diagnostics, January 2023, MDPI AG

    Peter Kerkhof

  29. Analysis and Interpretation of Primary and Derived Data Sets in Cardiology

    Article • World Scientific Annual Review of Biomechanics, January 2023, World Scientific Pub Co Pte Lt

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  30. Role of Arterial Compliance in Assessing the Biomechanical Properties of Arteries in Systole and Diastole and in Hypertension

    Article • World Scientific Annual Review of Biomechanics, January 2023, World Scientific Pub Co Pte Lt

    Peter Kerkhof

  31. In search for the optimal ventricular systolic dysfunction metric that associates with reduced exercise capacity

    Article • Journal of Clinical Ultrasound, December 2022, Wiley

    Peter Kerkhof

  32. Case report on right ventricular mural endocarditis, not diagnosed clinically, but histopathologically after cardiac surgery

    Article • European Heart Journal - Case Reports, September 2022, Oxford University Press (OUP)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  33. Editorial: Fundamental enrichment of ratio-based metrics in cardiology

    Article • Frontiers in Cardiovascular Medicine, August 2022, Frontiers

    Peter Kerkhof

  34. The Ratio of Diastolic and Systolic Arterial Pressure is Associated with Pulse Pressure

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  35. Various Approaches to Define the Volume Intercept of the Ventricular End-Systolic Pressure-Volume Relationship: Implications for Statistical Analysis

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  36. Ventricular and Atrial Ejection Fractions are Associated with Mean Compartmental Cavity Volume in Cardiac Disease

    Article • July 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  37. Coronary Flow Evaluation in Heart Transplant Patients Compared to Healthy Controls Documents the Superiority of Coronary Flow Velocity Reserve Companion as Diagnostic and Prognostic Tool

    Article • Frontiers in Cardiovascular Medicine, June 2022, Frontiers

    Peter Kerkhof

  38. La serendipia en torno la fracción de eyección: una revisión de la historia, la casualidad y la cuasi-funcionalidad de una métrica aplaudida

    Article • Revista médica de Chile, February 2022, SciELO Comision Nacional de Investigacion Cientifica Y Tecnologica (CONICYT)

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  39. Multiparametric analysis of coronary flow in psoriasis using a coronary flow reserve companion

    Article • European Journal of Clinical Investigation, November 2021, Wiley

    Peter Kerkhof

  40. What reveals the right ventricle about prognosis in heart failure, and why appear metrics to be sex‐specific?

    Article • Journal of Clinical Ultrasound, September 2021, Wiley

    Peter Kerkhof, Professor Rienzi A Diaz Navarro

  41. Left Ventricular Global Function Index and the Impact of its Companion Metric

    Article • Frontiers in Cardiovascular Medicine, August 2021, Frontiers

    Peter Kerkhof

  42. Case report on the importance of longitudinal analysis of left ventricular end-systolic volume, rather than ejection fraction, in a heart transplant patient

    Article • European Heart Journal - Case Reports, May 2021, Oxford University Press (OUP)

    Peter Kerkhof

  43. Role of ratio-based metrics in cardiology

    Article • Russian Journal of Cardiology, November 2020, Silicea - Poligraf, LLC

    Peter Kerkhof

  44. Variation in Fractional Flow Reserve (FFR) and Its Effects on Stenting Decision Making

    Article • The FASEB Journal, April 2020, Wiley

    Peter Kerkhof

  45. Insights from physiology applied to interpretation of supranormal ejection fraction in women

    Article • European Heart Journal - Cardiovascular Imaging, February 2020, Oxford University Press (OUP)

    Peter Kerkhof

  46. Fractional Flow Reserve Evaluated as Metric of Coronary Stenosis — A Mathematical Model Study

    Article • Frontiers in Cardiovascular Medicine, January 2020, Frontiers

    Peter Kerkhof

  47. Optical satellite communication space terminal technology at TNO

    Article • July 2019, SPIE

    Peter Kerkhof

  48. Ratiology and a Complementary Class of Metrics for Cardiovascular Investigations

    Article • Physiology, July 2019, American Physiological Society

    Peter Kerkhof

  49. Polar Coordinate Description of Blood Pressure Measurements and Implications for Sex-Specific and Personalized Analysis

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  50. Sex-Specific Interpretation of Coronary Flow Reserve and Fractional Flow Reserve Metrics, Including Their Companions

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  51. Heart Failure Phenotypes Require Sex-Specific Criteria Which Are Based on Ventricular Dimensions

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  52. Pulmonary arterial hypertension severity assessed by combined pressure and RV volume measurements

    Article • April 2019, SAGE Publications

    Peter Kerkhof

  53. Temporal changes in left ventricular longitudinal strain in general population: Clinical correlates and impact on cardiac remodeling

    Article • Echocardiography, January 2019, Wiley

    Peter Kerkhof

  54. Quantitative cardiology and computer modeling analysis of heart failure in systole and in diastole

    Article • Computers in Biology and Medicine, December 2018, Elsevier

    Peter Kerkhof

  55. The Pythagorean theorem reveals the inherent companion of cardiac ejection fraction

    Article • International Journal of Cardiology, November 2018, Elsevier

    Peter Kerkhof

  56. Physiological Models Survey

    Article • May 2018, Wiley

    Peter Kerkhof

  57. Left ventricular volume analysis as a basic tool to describe cardiac function

    Article • AJP Advances in Physiology Education, March 2018, American Physiological Society

    Peter Kerkhof

  58. Ejection fraction as related to basic components in the left and right ventricular volume domains

    Article • International Journal of Cardiology, March 2018, Elsevier

    Peter Kerkhof

  59. Optical feeder link program and first adaptive optics test results

    Article • February 2018, SPIE

    Peter Kerkhof

  60. Importance of (measuring) the end-systolic volume index in predicting survival

    Article • Heart, January 2018, BMJ

    Peter Kerkhof

  61. Arterial Flow, Pulse Pressure and Pulse Wave Velocity in Men and Women at Various Ages

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  62. Cardiophysiology Illustrated by Comparing Ventricular Volumes in Healthy Adult Males and Females

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  63. Cardiovascular Implications of Diabetes, Metabolic Syndrome, Thyroid Disease, and Cardio-Oncology in Women

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  64. Heart Function Analysis in Cardiac Patients with Focus on Sex-Specific Aspects

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  65. Heart Transplantation Survival and Sex-Related Differences

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  66. Sex- and Age-Related Reference Values in Cardiology, with Annotations and Guidelines for Interpretation

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  67. Sex-Specific Cardiovascular Comorbidities with Associations in Dermatologic and Rheumatic Disorders

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  68. Women and Men in the History of Western Cardiology: Some Notes on Their Position as Patients, Role as Investigational Study Subjects, and Impact as Professionals

    Article • January 2018, Springer Science + Business Media

    Peter Kerkhof

  69. Bioimpedance: Principles, Measurements, and Applications

    Article • November 2017, Wiley

    Peter Kerkhof

  70. Characterization of EBL2 EUV exposure facility

    Article • October 2017, SPIE

    Peter Kerkhof

  71. Medical Expert Systems

    Article • August 2017, Wiley

    Peter Kerkhof

  72. First light and results on EBL2

    Article • July 2017, SPIE

    Peter Kerkhof

  73. First light at EBL2

    Article • March 2017, SPIE

    Peter Kerkhof

  74. EBL2: high power EUV exposure facility

    Article • October 2016, SPIE

    Peter Kerkhof

  75. Commentaries on Viewpoint: The ongoing need for good physiological investigation: Obstructive sleep apnea in HIV patients as a paradigmCommentaries on Viewpoint: The ongoing need for good physiological investigation: Obstructive sleep apnea in HIV pati...

    Article • Journal of Applied Physiology, January 2015, American Physiological Society

    MD, PhD Jaime L Eugenín, Peter Kerkhof, Professor Gary F Nieman

  76. Characterizing Heart Failure in the Ventricular Volume Domain

    Article • Clinical Medicine Insights Cardiology, January 2015, SAGE Publications

    Peter Kerkhof

  77. Exploring Guidelines for Classification of Major Heart Failure Subtypes by Using Machine Learning

    Article • Clinical Medicine Insights Cardiology, January 2015, SAGE Publications

    Peter Kerkhof

  78. The Volume Regulation Graph versus the Ejection Fraction as Metrics of Left Ventricular Performance in Heart Failure with and without a Preserved Ejection Fraction: A Mathematical Model Study

    Article • Clinical Medicine Insights Cardiology, January 2015, SAGE Publications

    Peter Kerkhof

  79. Heart Failure: An Exploration of Recent Advances in Research and Treatment

    Article • Clinical Medicine Insights Cardiology, January 2015, SAGE Publications

    Peter Kerkhof

  80. Left ventricular volume regulation in heart failure with preserved ejection fraction

    Article • Physiological Reports, September 2013, Wiley

    Peter Kerkhof

  81. Effective arterial elastance and arterial compliance in heart failure patients with preserved ejection fraction

    Article • July 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  82. Left ventricular volume regulation in heart failure with preserved ejection fraction

    Article • Physiological Reports, June 2013, Wiley

    Peter Kerkhof

  83. Predicting Liquid Water Saturation Through Differently Structured Cathode Gas Diffusion Media of a Proton Exchange Membrane Fuel Cell

    Article • Journal of Fuel Cell Science and Technology, March 2012, ASME International

    Peter Kerkhof

  84. Effect of channel and rib width on transport phenomena within the cathode of a proton exchange membrane fuel cell

    Article • International Journal of Hydrogen Energy, May 2011, Elsevier

    Peter Kerkhof

  85. Dynamic behavior of liquid water transport in a tapered channel of a proton exchange membrane fuel cell cathode

    Article • International Journal of Hydrogen Energy, February 2011, Elsevier

    Peter Kerkhof

  86. On the optimal defibrillation Waveform-how to reconcile theory and experiment?

    Article • IEEE Transactions on Biomedical Engineering, August 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  87. Erratum to “Quantifying Ventricular Fibrillation: In Silico Research and Clinical Implications”

    Article • IEEE Transactions on Biomedical Engineering, March 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  88. On Tubes, Strings, and Resonance in the Arterial System—What Makes the Beat Go on?

    Article • IEEE Transactions on Biomedical Engineering, January 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  89. Quantifying Ventricular Fibrillation: In Silico Research and Clinical Implications

    Article • IEEE Transactions on Biomedical Engineering, January 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  90. A unifying representation of ventricular volumetric indexes

    Article • IEEE Transactions on Biomedical Engineering, March 1998, Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  91. Age Variance of Left Ventricular Diameters in Dogs With Cardiac Disease

    Article • The Journals of Gerontology Series A, January 1998, Oxford University Press (OUP)

    Peter Kerkhof

  92. Two conducting spheres in a parallel electric field

    Article • Journal of Applied Physics, December 1995, American Institute of Physics

    Peter Kerkhof

  93. The Medwise diagnostic module as a consultant

    Article • Expert Systems with Applications, October 1993, Elsevier

    Peter Kerkhof

  94. Relation between infarct size and left ventricular performance assessed in patients with first acute myocardial infarction randomized to intracoronary thrombolytic therapy or to conventional treatment

    Article • The American Journal of Cardiology, January 1988, Elsevier

    Peter Kerkhof

  95. Continuous stroke volume and cardiac output from intra-ventricular dimensions obtained with impedance catheter

    Article • Cardiovascular Research, June 1981, European Society of Cardiology

    Peter Kerkhof

  96. Peak left ventricular systolic pressure/ end-systolic volume ratio

    Article • The American Journal of Cardiology, September 1980, Elsevier

    Peter Kerkhof

  97. Effects of age on aortic pressure-diameter and elastic stiffness-stress relationships in unanesthetized sheep.

    Article • Circulation Research, March 1979, Wolters Kluwer Health

    Peter Kerkhof

  98. Photoreduction of plastoquinone to plastosemiquinone in spinach chloroplasts at −400°C

    Article • FEBS Letters, October 1974, Wiley

    Peter Kerkhof

  99. Muscle length and neuromuscular transmission in the frog

    Article • Pflügers Archiv - European Journal of Physiology, January 1974, Springer Science + Business Media

    Peter Kerkhof

  100. H emodynamic Interventions and the Pressure-Diameter Loop of the Left Ventricle and the Proximal Aorta in the Conscious Dog

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  101. Effective end-systolic volume of the left ventricle and its contribution to cardiac function indexes

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  102. Characteristics of a population based analysis concerning ventricular volume regulation

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  103. Relating beat-to-beat windkessel model parameters to heart rate variations in equine and canine arterial systems

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  104. Neural modulation of ventriculo-aortic coupling index and stroke work based on the alternative Starling curve description

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  105. Performance Of Medwise During Expansion Of The Knowledge Base

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof

  106. Matrix structure representation of a medical knowledge base

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Peter Kerkhof