Automatic selection of transaxial axis for reorientation of myocardial SPECT tomograms

A. Ezekiel*, G. Germano, K. Van Train, H. Kiat, D. Berman

*Corresponding author for this work

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

Abstract

Reorientation of transaxial SPECT myocardial tomograms into short and vertical long axis tomograms currently requires manual selection of the transaxial reference plane and manual determination of the left ventricle's long axis orientation in that plane. To reduce the time required for this procedure and promote objectivity, an algorithm was developed to automatically determine these parameters, using an approach that models the transaxial section of the myocardium as an ellipse. Automatically determined values for the reference plane and the long axis orientation in 14 normal and 11 abnormal patients in dual isotope, TL-201 rest and Tc-Sestamibi stress, were compared with those obtained manually, with good correlation (r=0.91, p<0.001 for the axis orientation). The algorithm may eventually allow completely automatic reorientation of myocardial SPECT studies, thereby reducing operator labor and subjectivity.

Original languageEnglish
Title of host publicationComputers in Cardiology
Place of PublicationLos Alamitos, CA
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages651-654
Number of pages4
ISBN (Print)0818654708
Publication statusPublished - 1993
Externally publishedYes
EventProceedings of the 1993 Conference on Computers in Cardiology - London, UK
Duration: 5 Sep 19938 Sep 1993

Other

OtherProceedings of the 1993 Conference on Computers in Cardiology
CityLondon, UK
Period5/09/938/09/93

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  • Cite this

    Ezekiel, A., Germano, G., Van Train, K., Kiat, H., & Berman, D. (1993). Automatic selection of transaxial axis for reorientation of myocardial SPECT tomograms. In Computers in Cardiology (pp. 651-654). Los Alamitos, CA: Institute of Electrical and Electronics Engineers (IEEE).