Adaptive two-pass cone-beam artifact correction using a FOV-preserving two-source geometry: a simulation study

Medical Physics
P ForthmannR Proksa

Abstract

The evolution to ever wider detector arrays that are able to cover whole organs with a single circular gantry sweep has revitalized the research efforts toward finding improved axial scanning algorithms and protocols. The authors propose a computed tomography scan and reconstruction concept using two sources, a single detector and a two-pass cone-beam correction method, as an integral part of the reconstruction. Compared with standard circular acquisition and reconstruction methods, the new concept excels with improved coverage and very low cone-beam artifact level also for short scan acquisitions, which makes it especially attractive for cardiac applications.

References

Mar 1, 1982·Medical Physics·D L Parker
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Jan 5, 2002·Medical Physics·T H KöhlerM Grass
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Nov 3, 2005·Physics in Medicine and Biology·Shinichiro MoriYasuo Saito
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Mar 28, 2008·The International Journal of Cardiovascular Imaging·Frank J RybickiMarcelo F Di Carli
Apr 22, 2011·IEEE Transactions on Medical Imaging·Ewald RoesslRoland Proksa

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