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Multiscale Motion Mapping—A Novel Computer Vision Technique for Quantitative, Objective Echocardiographic Motion Measurement Independent of Doppler: First Clinical Description and Validation

M. Sühling, C. Jansen, M. Arigovindan, P. Buser, S. Marsch, M. Unser, P. Hunziker

Circulation, vol. 110, no. 19, pp. 3093-3099, November 9, 2004.


Background—Objective, quantitative, segmental noninvasive/bedside measurement of cardiac motion is highly desirable in cardiovascular medicine, but current technology suffers from significant drawbacks, such as subjectivity of conventional echocardiographic reading, angle dependence of tissue Doppler measurements, radiation exposure by computer tomography, and infrastructure requirements in MRI. We hypothesized that computer vision technology could represent a powerful new paradigm for quantification in echocardiography.

Methods and Results—We present multiscale motion mapping, a novel computer vision technology that is based on mathematical image processing and that exploits echocardiographic information in a fashion similar to the human visual system. It allows Doppler- and border-independent determination of motion and deformation in echocardiograms at arbitrary locations. Correctness of the measurements was documented in synthetic echocardiograms and phantom experiments. Exploratory case studies demonstrated its usefulness in a series of complex motion analyses that included abnormal septal motion and analysis of myocardial twisting. Clinical applicability was shown in a consecutive series of echocardiograms, in which good feasibility, good correlation with expert rating, and good intraobserver and interobserver concordance were documented. Separate assessment of 2D displacement and deformation at the same location was successfully applied to elucidate paradoxical septal motion, a common clinical problem.

Conclusions—This is the first clinical report of multiscale motion mapping, a novel approach to echocardiographic motion quantification. For the first time, full 2D echocardiographic assessment of both motion and deformation is shown to be feasible. Overcoming current limitations, this computer vision-based technique opens a new door to objective analysis of complex heart motion.

This paper is available for purchase from here.

Data Supplement—The movies are labeled according to the enumeration of the associated figures in the article.

  1. Movie 3: Different kinds of motion information determined by multiscale motion mapping from synthetic ultrasound data.
    • Movie 3a (QuickTime Movie) (474 kb). Original sequence.
    • Movie 3b (QuickTime Movie) (778 kb). Estimated velocity field.
    • Movie 3c (QuickTime Movie) (432 kb). Color-coded radial velocity.
    • Movie 3d (QuickTime Movie) (758 kb). Estimated strain rate.
  2. Movie 4: Rotating phantom experiment.
    • Movie 4a (QuickTime Movie) (282 kb). B-mode echocardiogram.
    • Movie 4b (QuickTime Movie) (433 kb). Estimated velocity field.
    • Movie 4c (QuickTime Movie) (260 kb). Measured color Doppler signal.
  3. Movie 5: Multiscale motion mapping applied to an apical short axis view of a normal heart.
    • Movie 5a (QuickTime Movie) (378 kb). Original sequence.
    • Movie 5b (QuickTime Movie) (706 kb). Estimated velocity field.
    • Movie 5cd (QuickTime Movie) (177 kb). Color-coded radial velocity.
    • Movie 5ef (QuickTime Movie) (492 kb). Estimated strain rate.
  4. Movie 6: Case study in apical four-chamber view.
    • Movie 6ab (QuickTime Movie) (314 kb). Velocity vectors at selected positions.
    • Movie 6c (QuickTime Movie) (291 kb). Estimated strain rate.
    • Movie 6d (QuickTime Movie) (289 kb). Transversal velocity component.
    • Movie 6ef (QuickTime Movie) (355 kb). Longitudinal velocity component.

@ARTICLE(http://bigwww.epfl.ch/publications/suehling0405.html,
AUTHOR="S{\"{u}}hling, M. and Jansen, C. and Arigovindan, M. and Buser,
	P. and Marsch, S. and Unser, M. and Hunziker, P.",
TITLE="Multiscale Motion Mapping---{A} Novel Computer Vision Technique
	for Quantitative, Objective Echocardiographic Motion Measurement
	Independent of Doppler: {F}irst Clinical Description and
	Validation",
JOURNAL="Circulation",
YEAR="2004",
volume="110",
number="19",
pages="3093--3099",
month="November 9,",
note="")

© 2004 AHA. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from AHA. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
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