2 March 2006 ECG gated continuous circular cone-beam multi-cycle reconstruction for in-stent coronary artery imaging: a phantom study
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Abstract
In this contribution, we introduce a retrospectively gated cardiac cone-beam reconstruction scheme for continuous circular acquisition with parallel ECG recording. The technique is capable of handling variable angular ranges and enables high resolution 3D and 4D reconstruction of objects covered by the cone at a high temporal resolution. Though the detector coverage of nowadays CT scanners is not large enough to cover the complete human heart, it is sufficient to image smaller objects like conventional stents. We applied the proposed reconstruction 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.
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Udo van Stevendaal, Peter Koken, Philipp G. C. Begemann, Ralf Koester, Gerhard Adam, Michael Grass, "ECG gated continuous circular cone-beam multi-cycle reconstruction for in-stent coronary artery imaging: a phantom study", Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61420L (2 March 2006); doi: 10.1117/12.652011; https://doi.org/10.1117/12.652011
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