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Proceedings Paper

Determination of the temporal and spatial resolution in retrospectively gated cardiac cone-beam CT
Author(s): Udo van Stevendaal; Philipp G. C. Begemann; Joern Borgert; Ruediger Grewer; Sascha Krueger; Holger Timinger; Michael Grass
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Paper Abstract

In this contribution, we investigate the spatial and temporal resolution of retrospectively gated cardiac cone-beam CT. Data of a static and a dynamic resolution phantom are acquired for various heart rates, table speeds and scanner rotation times. The projection data are reconstructed in different motion states with the help of a retrospectively gated helical cardiac cone-beam reconstruction method. This multi-cycle method automatically adapts the number of heart cycles used for the reconstruction, based on the scan parameters and the ECG data. The spatial resolution is derived from a resolution phantom by multi-planar reformation (MPR) along the scan direction.

Paper Details

Date Published: 12 May 2004
PDF: 11 pages
Proc. SPIE 5370, Medical Imaging 2004: Image Processing, (12 May 2004); doi: 10.1117/12.534772
Show Author Affiliations
Udo van Stevendaal, Philips Research Labs. (Germany)
Philipp G. C. Begemann, Univ. Hospital Hamburg-Eppendorf (Germany)
Joern Borgert, Philips Research Labs. (Germany)
Ruediger Grewer, Philips Research Labs. (Germany)
Sascha Krueger, Philips Research Labs. (Germany)
Holger Timinger, Philips Research Labs. (Germany)
Michael Grass, Philips Research Labs. (Germany)

Published in SPIE Proceedings Vol. 5370:
Medical Imaging 2004: Image Processing
J. Michael Fitzpatrick; Milan Sonka, Editor(s)

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