Residual Motion Compensation in ECG-Gated Cardiac Vasculature Reconstruction

Schwemmer C, Rohkohl C, Lauritsch G, Müller K, Hornegger J (2012)

Publication Status: Accepted

Publication Type: Conference contribution, Conference Contribution

Publication year: 2012

Original Authors: Schwemmer Chris, Rohkohl Christopher, Lauritsch Günter, Müller Kerstin, Hornegger Joachim

Pages Range: 259–262

Conference Proceedings Title: Proceedings of the second international conference on image formation in x-ray computed tomography

Event location: Salt Lake City, Utah US

URI: http://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2012/Schwemmer12-RMC.pdf

Abstract

Generating 3-D reconstructions of cardiac vasculature from angiographic C-arm CT (rotational angiography) data is a challenging problem. Currently, many approaches depend on a reconstruction from ECG-gated projection data either as a reference for further processing or as the final result. Due to imperfect gating, e.g. caused by irregular heart movement, residual motion corrupts these reconstructions. We present an algorithm to compensate for this residual motion. The approach is based on a deformable 2-D-2-D registration between the acquired projection data and a forward projection of the initial ECG-gated reconstruction. It does not depend on an explicit segmentation of vasculature or markers, and works without user interaction. The estimated 2-D deformation field is compensated for in the backprojection step of a subsequent reconstruction. The algorithm is evaluated on two clinical datasets, showing a clear decrease in artefact level and better visibility of structure in the compensated reconstructions.

Authors with CRIS profile

Chris Schwemmer Lehrstuhl für Informatik 14 (Bild- und Sprachverarbeitung) Christopher Rohkohl Graduiertenzentrum der FAU Kerstin Müller Lehrstuhl für Informatik 14 (Bild- und Sprachverarbeitung) Joachim Hornegger Lehrstuhl für Informatik 14 (Bild- und Sprachverarbeitung)

Related research project(s)

None - None

Involved external institutions

Siemens AG, Healthcare Sector DE Germany (DE)

How to cite

APA:

Schwemmer, C., Rohkohl, C., Lauritsch, G., Müller, K., & Hornegger, J. (2012). Residual Motion Compensation in ECG-Gated Cardiac Vasculature Reconstruction. In Frederic Noo (Eds.), Proceedings of the second international conference on image formation in x-ray computed tomography (pp. 259–262). Salt Lake City, Utah, US.

MLA:

Schwemmer, Chris, et al. "Residual Motion Compensation in ECG-Gated Cardiac Vasculature Reconstruction." Proceedings of the The second international conference on image formation in x-ray computed tomography, Salt Lake City, Utah Ed. Frederic Noo, 2012. 259–262.

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