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Proceedings Paper

ECG gated circular cone-beam multi-cycle short-scan reconstruction algorithm
Author(s): Udo van Stevendaal; Peter Koken; Philipp G. C. Begemann; Ralf Koester; Gerhard Adam; Michael Grass
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Paper Abstract

In this contribution, the results of a phantom study for in-stent restenosis imaging with ECG gated continuous circular acquisition and reconstruction are summarized. Different rotation speeds and angular ranges are used to enable high resolution 3D and 4D reconstruction of objects covered by the cone at a high temporal resolution. Though the detector coverage of today's CT scanners is not large enough to irradiate the complete human heart, the coverage is sufficient to image smaller objects like conventional stents. We applied the proposed method to the visualization of an in-stent re-stenoses phantom covered by a clinical stent, attached to a dynamic heart phantom. The method delivers images of stents in vitro at an excellent visibility and is able to rule out in-stent occlusions.

Paper Details

Date Published: 19 March 2007
PDF: 12 pages
Proc. SPIE 6510, Medical Imaging 2007: Physics of Medical Imaging, 65105P (19 March 2007); doi: 10.1117/12.707854
Show Author Affiliations
Udo van Stevendaal, Philips Research Labs. (Germany)
Peter Koken, Philips Research Labs. (Germany)
Philipp G. C. Begemann, Univ. Hospital Hamburg-Eppendorf (Germany)
Ralf Koester, Univ. Hospital Hamburg-Eppendorf (Germany)
Gerhard Adam, Univ. Hospital Hamburg-Eppendorf (Germany)
Michael Grass, Philips Research Labs. (Germany)

Published in SPIE Proceedings Vol. 6510:
Medical Imaging 2007: Physics of Medical Imaging
Jiang Hsieh; Michael J. Flynn, Editor(s)

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