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Proceedings Paper

Quantitative assessment of cardiac motion using multiphase computed tomography imaging with application to cardiac ablation therapy
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Paper Abstract

Cardiac arrhythmias, a condition in which the heart beats irregularly, are typically treated with drug or cardiac ablation therapy. More recently, external beam ablation therapy has been proposed as a potential approach for treating cardiac arrhythmias. Currently, a significant challenge regarding external beam ablation therapy in the heart is compensation for cardiac motion to ensure precise targeting. Porcine animal models are often used for evaluating image-guided intervention systems for cardiac applications; however, to date there have been relatively few studies evaluating motion in the swine heart. In this study, we model and quantify cardiac motion in the left atrium and left ventricle of three beating porcine hearts by tracking anatomic landmarks across twenty phases of the cardiac cycle from multi-phase computed tomography images. 10 landmarks are tracked for each porcine heart, 5 in the left atrium and 5 in the left ventricle. The mean (std) displacement for the 5 left atrial landmarks is 5.5(3.5) mm in x, 5.0(2.9) mm in y, and 5.6(3.3) mm in z. The mean (std) displacement for the 5 left ventricular landmarks is 7.1(3.8) mm in x, 9.9(5.2) mm in y, and 7.7(3.1) mm in z.

Paper Details

Date Published: 22 March 2018
PDF: 6 pages
Proc. SPIE 10576, Medical Imaging 2018: Image-Guided Procedures, Robotic Interventions, and Modeling, 105762F (22 March 2018); doi: 10.1117/12.2295438
Show Author Affiliations
A. C. Hasnain, Univ. of Illinois (United States)
Mayo Clinic (United States)
A. Suzuki, Mayo Clinic (United States)
S. Wang, Mayo Clinic (United States)
H. Konishi, Mayo Clinic (United States)
S. Hohmann, Mayo Clinic (United States)
L. K. Newman, Mayo Clinic (United States)
K. D. Parker, Mayo Clinic (United States)
A. J. Deisher, Mayo Clinic (United States)
D. L. Packer, Mayo Clinic (United States)
M. E. Rettmann, Mayo Clinic (United States)

Published in SPIE Proceedings Vol. 10576:
Medical Imaging 2018: Image-Guided Procedures, Robotic Interventions, and Modeling
Baowei Fei; Robert J. Webster III, Editor(s)

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