Shape based three dimensional mapping of left ventricular aneurysm

Haim Azhari, Rafael Beyar, Melvin L. Marcus, Samuel Sideman

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

Abstract

A novel technique for three-dimensional (3-D) mapping of left ventricular (LV) aneurysm is introduced, and utilized to map eight human hearts, studied in vivo by ultrafast tomography (cine-CT). The technique utilizes geometrical cardiograms (GCGs) to characterize the LV's 3-D geometry. The Karhunen-Loeve transform applied to a reference group of GCGs obtained from 10 healthy hearts can be reconstructed with a minimal mean square error (MSE) of approximation; the GCGs of abnormal hearts demonstrate a significantly larger MSE. 3-D maps of the LV indicating the suspected regions of aneurysm are obtained by studying the regional errors of approximation, and thresholding for a value that designates the limit for normal hearts. The maps are in good agreement with wall-thickness analysis.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
PublisherPubl by IEEE
Pages230-231
Number of pages2
Editionpt 1
ISBN (Print)0879425598
StatePublished - 1990
Externally publishedYes
EventProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA
Duration: Nov 1 1990Nov 4 1990

Other

OtherProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityPhiladelphia, PA, USA
Period11/1/9011/4/90

ASJC Scopus subject areas

  • Bioengineering

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  • Cite this

    Azhari, H., Beyar, R., Marcus, M. L., & Sideman, S. (1990). Shape based three dimensional mapping of left ventricular aneurysm. In Proceedings of the Annual Conference on Engineering in Medicine and Biology (pt 1 ed., pp. 230-231). Publ by IEEE.