Technical note: On cardiac ablation lesion visualization for image-guided therapy monitoring

Cristian A. Linte, Jon J. Camp, Maryam E. Rettmann, Dieter Haemmerich, Mehmet K. Aktas, David T. Huang, Douglas L. Packer, David R. Holmes

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The delivery of insufficient thermal dose is a significant contributor to incomplete tissue ablation and leads to arrhythmia recurrence and a large number of patients requiring repeat procedures. In concert with ongoing research efforts aimed at better characterizing the RF energy delivery, here we propose a method that entails modeling and visualization of the lesions in real time. The described image-based ablation model relies on classical heat transfer principles to estimate tissue temperature in response to the ablation parameters, tissue properties, and duration. The ablation lesion quality, geometry, and overall progression is quantified on a voxelby-voxel basis according to each voxel's cumulative temperature and time exposure. The model was evaluated both numerically under different parameter conditions, as well as experimentally, using ex vivo bovine tissue samples. This study suggests that the proposed technique provides reasonably accurate and sufficiently fast visualizations of the delivered ablation lesions.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2018
Subtitle of host publicationImage-Guided Procedures, Robotic Interventions, and Modeling
EditorsBaowei Fei, Robert J. Webster
ISBN (Electronic)9781510616417
StatePublished - 2018
EventMedical Imaging 2018: Image-Guided Procedures, Robotic Interventions, and Modeling - Houston, United States
Duration: Feb 12 2018Feb 15 2018

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


OtherMedical Imaging 2018: Image-Guided Procedures, Robotic Interventions, and Modeling
Country/TerritoryUnited States


  • Ablation lesion modeling and monitoring
  • Image-guided cardiac catheter ablation
  • Lesion visualization
  • Model evaluation and validation
  • Radiofrequency ablation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging


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