Task based assessment of a motion compensation algorithm via simulation of a moving stenotic vessel

Brian E. Nett; Jed D. Pack; Darin Okerlund

doi:10.1117/12.2006593

19 March 2013 Task based assessment of a motion compensation algorithm via simulation of a moving stenotic vessel

Brian E. Nett, Jed D. Pack, Darin Okerlund

Proceedings Volume 8668, Medical Imaging 2013: Physics of Medical Imaging; 86682B (2013) https://doi.org/10.1117/12.2006593
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

An analysis of a task based simulation study of coronary artery imaging via computed tomography (CT). Evaluation of standard filtered backprojection (FBP) reconstruction and motion compensated reconstruction of a moving cylindrical vessel that contains a hyper-intense lesion. Multiple conditions are simulated including: varying rest times of the vessel and varying motion orientations. A reference image with no motion was used for all comparisons. The images were segmented and quantitative metrics for accurate segmentation were compared. The motion compensated images have consistent error metrics with respect to the static case for all rest times. The FBP reconstructions were visually inferior for shorter rest times and had significantly inferior metrics. This is the first demonstration of equivalent performance for a given task when the rest times are reduced well below the temporal aperture of the acquisition, using either advanced algorithms or different data acquisition such as multi-source geometries.

Citation Download Citation

Brian E. Nett, Jed D. Pack, and Darin Okerlund "Task based assessment of a motion compensation algorithm via simulation of a moving stenotic vessel", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 86682B (19 March 2013); https://doi.org/10.1117/12.2006593

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