Demonstration of a software package for the reconstruction of the dynamically changing structure of the human heart from cone beam X-ray projections

M. D. Altschuler, Y. Censor, P. P.B. Eggermont, G. T. Herman, Y. H. Kuo, R. M. Lewitt, M. McKay, H. K. Tuy, J. K. Udupa, M. M. Yau

Research output: Contribution to journalArticlepeer-review

Abstract

The Dynamic Spatial Reconstructor (DSR) is a device constructed at the Biodynamics Research Unit of the Mayo Clinic for (among other things) the visualization of the beating heart inside the intact thorax. The device consists of 28 rotating X-ray sources arranged on a circular arc at 6° intervals (total span 162°) and a matching set of 28 imaging systems. The whole thorax of the patient is projected onto the two-dimensional screen of the imaging systems by cone beams of X rays from the sources. All of the X-ray sources are switched on and off within a total period of 10 milliseconds. The Medical Image Processing Group at the State University of New York at Buffalo has developed a software package for the design and evaluation of algorithms to be used by the DSR. In this paper we illustrate the operation of the package and a particular algorithm for the reconstruction of the dynamically changing structure of the heart from data collected by the DSR.

Original languageEnglish
Pages (from-to)289-304
Number of pages16
JournalJournal of Medical Systems
Volume4
Issue number2
DOIs
StatePublished - Jun 1980
Externally publishedYes

ASJC Scopus subject areas

  • Information Systems
  • Health Information Management
  • Health Informatics
  • Medicine (miscellaneous)

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