Soft-tissue imaging in low-dose, C-arm cone-beam CT using statistical image reconstruction

Adam S. Wang; Sebastian Schafer; J. Webster Stayman; Yoshi Otake; Marc S. Sussman; A. Jay Khanna; Gary L. Gallia; Jeffrey H. Siewerdsen

doi:10.1117/12.2008421

19 March 2013 Soft-tissue imaging in low-dose, C-arm cone-beam CT using statistical image reconstruction

Adam S. Wang, Sebastian Schafer, J. Webster Stayman, Yoshi Otake, Marc S. Sussman, A. Jay Khanna, Gary L. Gallia, Jeffrey H. Siewerdsen

Author Affiliations +

Proceedings Volume 8668, Medical Imaging 2013: Physics of Medical Imaging; 86681F (2013) https://doi.org/10.1117/12.2008421
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

C-arm cone-beam CT is an emerging tool for intraoperative imaging, but currently exhibits modest soft-tissue imaging capability. This work adapts a spectrum of statistical iterative reconstruction approaches to C-arm CBCT and investigates performance in imaging of low-contrast tasks pertinent to soft-tissue surgical guidance. Experiments involved a mobile C-arm and phantoms and cadavers presenting soft-tissue structures imaged using 3D FBP and penalized likelihood reconstruction. Statistical reconstruction - especially non-quadratic PL - boosted soft-tissue image quality through reduction of noise and artifacts, therefore presenting promise for interventional imaging. Further investigation of task-specific performance may overcome conventional tradeoffs in noise, resolution, and dose.

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Adam S. Wang, Sebastian Schafer, J. Webster Stayman, Yoshi Otake, Marc S. Sussman, A. Jay Khanna, Gary L. Gallia, and Jeffrey H. Siewerdsen "Soft-tissue imaging in low-dose, C-arm cone-beam CT using statistical image reconstruction", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 86681F (19 March 2013); https://doi.org/10.1117/12.2008421

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