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Simultaneous reconstruction and motion estimation for gated cardiac ECT

Publication ,  Journal Article
Gilland, DR; Mair, BA; Bowsher, JE; Jaszczak, RJ
Published in: IEEE Transactions on Nuclear Science
October 1, 2002

The primary goal of this work has been to develop a processing method for gated cardiac emission computed tomography (ECT) that simultaneously reconstructs the pixel intensities of the gated images and estimates the motion of the cardiac wall. The simultaneous reconstruction and motion estimation is achieved using conjugate gradient optimization with an objective function that is dependent on the gated reconstructed images at two time frames and the estimated motion of the object between the two frames. The method was evaluated on simulated phantom data both with and without Poisson noise. With noise-free data, the accuracy of the motion estimate and the quality of the reconstructed images were found to be dependent on the hyperparameter selection. With noisy data, the simultaneous method produced reconstructed images with smaller squared error compared with images reconstructed without motion estimation. In a patient gated myocardial perfusion study, the estimated motion between two frames agreed with subjective assessment of wall motion.

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Published In

IEEE Transactions on Nuclear Science

DOI

ISSN

0018-9499

Publication Date

October 1, 2002

Volume

49 I

Issue

5

Start / End Page

2344 / 2349

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

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Gilland, D. R., Mair, B. A., Bowsher, J. E., & Jaszczak, R. J. (2002). Simultaneous reconstruction and motion estimation for gated cardiac ECT. IEEE Transactions on Nuclear Science, 49 I(5), 2344–2349. https://doi.org/10.1109/TNS.2002.803820
Gilland, D. R., B. A. Mair, J. E. Bowsher, and R. J. Jaszczak. “Simultaneous reconstruction and motion estimation for gated cardiac ECT.” IEEE Transactions on Nuclear Science 49 I, no. 5 (October 1, 2002): 2344–49. https://doi.org/10.1109/TNS.2002.803820.
Gilland DR, Mair BA, Bowsher JE, Jaszczak RJ. Simultaneous reconstruction and motion estimation for gated cardiac ECT. IEEE Transactions on Nuclear Science. 2002 Oct 1;49 I(5):2344–9.
Gilland, D. R., et al. “Simultaneous reconstruction and motion estimation for gated cardiac ECT.” IEEE Transactions on Nuclear Science, vol. 49 I, no. 5, Oct. 2002, pp. 2344–49. Scopus, doi:10.1109/TNS.2002.803820.
Gilland DR, Mair BA, Bowsher JE, Jaszczak RJ. Simultaneous reconstruction and motion estimation for gated cardiac ECT. IEEE Transactions on Nuclear Science. 2002 Oct 1;49 I(5):2344–2349.

Published In

IEEE Transactions on Nuclear Science

DOI

ISSN

0018-9499

Publication Date

October 1, 2002

Volume

49 I

Issue

5

Start / End Page

2344 / 2349

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics