Hiroshi Ashikaga MD PhD

PubMed

• Miniaturized side-firing intracardiac photoacoustic imaging catheter for monitoring radiofrequency ablation.
  Shang Gao, Yang Wang, Ryo Murakami, Hiroshi Ashikaga, Young-Ho Kim
  Scientific Reports. 2025-05-20
• 5 citations
  Cardiac-gated spectroscopic photoacoustic imaging for ablation-induced necrotic lesion visualization.
  Shang Gao, Hiroshi Ashikaga, Masahito Suzuki, Tommaso Mansi, Young-Ho Kim
  Journal of Biophotonics. 2024-10-01
• 20 citations
  Purkinje network and myocardial substrate at the onset of human ventricular fibrillation: implications for catheter ablation.
  Michel Haissaguerre, Ghassen Cheniti, Meleze Hocini, Frederic Sacher, F Daniel Ramirez
  European Heart Journal. 2022-03-21

Journal Articles

• Multimodal examination of atrial fibrillation substrate: correlation of left atrial bipolar voltage using multi-electrode fast automated mapping, point-by-point mappin...  
  Zghaib T, Keramati A, Chrispin J, Huang D, Balouch MA, Ciuffo L, Berger RD, Marine JE, Ashikaga H, Calkins H, Nazarian S, Spragg DD, JACC Clin Electrophysiol, 1/1/2018
• Relation of electrocardiographic left atrial abnormalities to risk of stroke in patients with atrial fibrillation  
  Inoue YY, Ipek EG, Khurram IM, Ciuffo L, Chrispin J, Zimmerman SL, Marine JE, Rickard J, MD; Spragg DD, Nazarian S, Kusano K, Lima JA, Berger RD, Calkins H, Ashikaga H, Am J Cardiol, 1/1/2018
• Is human atrial fibrillation stochastic or deterministic? Insights from missing ordinal patterns and causal entropy-complexity plane analysis  
  Aronis AN, Berger RD, Calkins H, Chrispin J, Marine JE, Spragg DD, Tao S, Tandri T, Ashikaga H, Chaos, 1/1/2018

Books/Book Chapters

• Critical Care Cardiology. (Japanese) 
  Chapter: Chapter 15: Complication of Acute Coronary Syndrome: Tachyarrhythmia. (Japanese) 
  Page 54 - 60Ashikaga H2015
• Critical Care Cardiology. (Japanese) 
  Chapter: Chapter 16: Complication of Acute Coronary Syndrome: Bradyarrhythmia. (Japanese) 
  Page 61 - 70Ashikaga H2015
• Cardiac Electrophysiology: From Cell to Bedside 
  Chapter: Chapter 61: CT and MR Imaging for electrophysiology. 
  Page 595 - 603Ashikaga H, Kolandaivelu A, Tandri H, Nazarian S, Halperin HREditors: Zipes DP and Jalife J.Edition 6th,2014

Abstracts/Posters

• False dyssynchrony: problem with image-based cardiac functional analysis using x-ray computed tomography.
  Kidoh M, Shen Z, Suzuki Y, Ciuffo L, Ashikaga H, Fung GSK, Otake Y, Zimmerman SL, Lima JAC, Higuchi T, Lee O, Sato Y, Becker LC, Fishman EK, Taguchi K, Proc SPIE, Medical Imaging: Physics of Medical Imaging, 1/1/2017
• Projection-based motion estimation for cardiac functional analysis with high temporal resolution: a proof-of-concept study with digital phantom experiment.
  Suzuki Y, Fung GSK, Shen Z, Otake Y, Lee O, Ciuffo L, Ashikaga H, Sato Y, Taguchi K, Proc SPIE, Medical Imaging: Physics of Medical Imaging, 1/1/2017

Lectures

• Fibrillation: What Cardiologists Can Learn from Neuroscientists 
  Johns Hopkins University School of Medicine, Baltimore, MD - 1/23/2018
• Phase Transition and Sudden Death 
  University of Tokyo Graduate School of Information Science and Technology, Tokyo, Japan - 1/17/2018
• Causality, Information Flow and Fibrillation 
  University of California, Santa Barbara, Santa Barbara, CA - 1/11/2018

Other

• Media release. Biomarker Predicts Success of Afib Treatment. 
  Ashikaga H, Johns Hopkins Medicine
  1/12/2018
• Scale-invariant structures of spiral waves. 
  Sohn D, Aronis AN, Ashikaga H, arXiv preprint
  https://arxiv.org/abs/1806.10768
  1/1/2018
• Is human atrial fibrillation stochastic or deterministic? 
  Aronis AN, Berger RD, Calkins H, Chrispin J, Marine JE, Spragg DD, Tao, S, Tandri T, Ashikaga H, arXiv preprint
  https://arxiv.org/abs/1802.01496
  1/1/2018