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Comparison of Multi-slice CHO-HO Models and Human Observers in Defect Detection with SPECT Myocardial Images

Publication ,  Journal Article
Chen, M; Bowsher, JE; Baydush, AH; Jaszczak, RJ
Published in: IEEE Nuclear Science Symposium and Medical Imaging Conference
December 1, 2002

The objective of this study was to compare defect detection performance using a multi-slice CHO-HO (Channelized Hotelling Observer - Hotelling Observer) model with performance found in two previously reported human observer receiver operating characteristic (ROC) studies. The tasks were left-ventricular myocardial perfusion lesion detection, with simulated projection data reconstructed using ordered subsets expectation maximization (OSEM) without attenuation and scatter correction (ASC) (ROC study one), and with experimental phantom data reconstructed using OSEM with ASC (ROC study two). Both simulated and experimental data modeled female and male anatomy. The projections were setup to simulate equal time dual-head anterior 180° and triple-head 360° scans. The multi-slice lesion detectability indices for the CHO-HO were calculated and compared to the A-'s for the human observers. Multiple channel setups for the CHO were investigated. Positive correlations were found between these results for some channel setups. Further investigation of channel models is needed to improve performance correlation with human observers.

Duke Scholars

Published In

IEEE Nuclear Science Symposium and Medical Imaging Conference

Publication Date

December 1, 2002

Volume

2

Start / End Page

1272 / 1276
 

Citation

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Chen, M., Bowsher, J. E., Baydush, A. H., & Jaszczak, R. J. (2002). Comparison of Multi-slice CHO-HO Models and Human Observers in Defect Detection with SPECT Myocardial Images. IEEE Nuclear Science Symposium and Medical Imaging Conference, 2, 1272–1276.
Chen, M., J. E. Bowsher, A. H. Baydush, and R. J. Jaszczak. “Comparison of Multi-slice CHO-HO Models and Human Observers in Defect Detection with SPECT Myocardial Images.” IEEE Nuclear Science Symposium and Medical Imaging Conference 2 (December 1, 2002): 1272–76.
Chen M, Bowsher JE, Baydush AH, Jaszczak RJ. Comparison of Multi-slice CHO-HO Models and Human Observers in Defect Detection with SPECT Myocardial Images. IEEE Nuclear Science Symposium and Medical Imaging Conference. 2002 Dec 1;2:1272–6.
Chen, M., et al. “Comparison of Multi-slice CHO-HO Models and Human Observers in Defect Detection with SPECT Myocardial Images.” IEEE Nuclear Science Symposium and Medical Imaging Conference, vol. 2, Dec. 2002, pp. 1272–76.
Chen M, Bowsher JE, Baydush AH, Jaszczak RJ. Comparison of Multi-slice CHO-HO Models and Human Observers in Defect Detection with SPECT Myocardial Images. IEEE Nuclear Science Symposium and Medical Imaging Conference. 2002 Dec 1;2:1272–1276.

Published In

IEEE Nuclear Science Symposium and Medical Imaging Conference

Publication Date

December 1, 2002

Volume

2

Start / End Page

1272 / 1276