Analysis of left atrial respiratory and cardiac motion for cardiac ablation therapy

M. E. Rettmann, David R. Holmes III, S. B. Johnson, H. I. Lehmann, R. A. Robb, Douglas L Packer

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

1 Citation (Scopus)

Abstract

Cardiac ablation therapy is often guided by models built from preoperative computed tomography (CT) or magnetic resonance imaging (MRI) scans. One of the challenges in guiding a procedure from a preoperative model is properly synching the preoperative models with cardiac and respiratory motion through computational motion models. In this paper, we describe a methodology for evaluating cardiac and respiratory motion in the left atrium and pulmonary veins of a beating canine heart. Cardiac catheters were used to place metal clips within and near the pulmonary veins and left atrial appendage under fluoroscopic and ultrasound guidance and a contrast-enhanced, 64-slice multidetector CT scan was collected with the clips in place. Each clip was segmented from the CT scan at each of the five phases of the cardiac cycle at both end-inspiration and end-expiration. The centroid of each segmented clip was computed and used to evaluate both cardiac and respiratory motion of the left atrium. A total of three canine studies were completed, with 4 clips analyzed in the first study, 5 clips in the second study, and 2 clips in the third study. Mean respiratory displacement was 0.2±1.8 mm in the medial/lateral direction, 4.7±4.4 mm in the anterior/posterior direction (moving anterior on inspiration), and 9.0±5.0 mm superior/inferior (moving inferior with inspiration). At end inspiration, the mean left atrial cardiac motion at the clip locations was 1.5±1.3 mm in the medial/lateral direction, and 2.1±2.0 mm in the anterior/posterior and 1.3±1.2 mm superior/inferior directions. At end expiration, the mean left atrial cardiac motion at the clip locations was 2.0±1.5 mm in the medial/lateral direction, 3.0±1.8 mm in the anterior/posterior direction, and 1.5±1.5 mm in the superior/inferior directions.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
PublisherSPIE
Volume9415
ISBN (Print)9781628415056
DOIs
StatePublished - 2015
EventMedical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling - Orlando, United States
Duration: Feb 22 2015Feb 24 2015

Other

OtherMedical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling
CountryUnited States
CityOrlando
Period2/22/152/24/15

Fingerprint

clips
Ablation
Surgical Instruments
ablation
therapy
inspiration
Tomography
Multidetector computed tomography
expiration
Catheters
Magnetic resonance
Therapeutics
Pulmonary Veins
tomography
Heart Atria
veins
Canidae
Ultrasonics
Imaging techniques
Cardiac Catheters

ASJC Scopus subject areas

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

Cite this

Rettmann, M. E., Holmes III, D. R., Johnson, S. B., Lehmann, H. I., Robb, R. A., & Packer, D. L. (2015). Analysis of left atrial respiratory and cardiac motion for cardiac ablation therapy. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 9415). [94152L] SPIE. https://doi.org/10.1117/12.2081209

Analysis of left atrial respiratory and cardiac motion for cardiac ablation therapy. / Rettmann, M. E.; Holmes III, David R.; Johnson, S. B.; Lehmann, H. I.; Robb, R. A.; Packer, Douglas L.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 9415 SPIE, 2015. 94152L.

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

Rettmann, ME, Holmes III, DR, Johnson, SB, Lehmann, HI, Robb, RA & Packer, DL 2015, Analysis of left atrial respiratory and cardiac motion for cardiac ablation therapy. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 9415, 94152L, SPIE, Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling, Orlando, United States, 2/22/15. https://doi.org/10.1117/12.2081209
Rettmann ME, Holmes III DR, Johnson SB, Lehmann HI, Robb RA, Packer DL. Analysis of left atrial respiratory and cardiac motion for cardiac ablation therapy. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 9415. SPIE. 2015. 94152L https://doi.org/10.1117/12.2081209
Rettmann, M. E. ; Holmes III, David R. ; Johnson, S. B. ; Lehmann, H. I. ; Robb, R. A. ; Packer, Douglas L. / Analysis of left atrial respiratory and cardiac motion for cardiac ablation therapy. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 9415 SPIE, 2015.
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