Phase-Based registration of multi-view real-time three-dimensional echocardiographic sequences

Authors:
Vicente Grau;Harald Becher;J. Alison Noble
Affiliations:
Wolfson Medical Vision Laboratory, Department of Engineering Science, University of Oxford, Oxford, United Kingdom;Department of Cardiology, John Radcliffe Hospital, Oxford, United Kingdom;Wolfson Medical Vision Laboratory, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
Venue:
MICCAI'06 Proceedings of the 9th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
Year:
2006

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Abstract

Real time three-dimensional echocardiography opens the possibility of interactive, fast three-dimensional analysis of cardiac anatomy and function. However, at the present time these capabilities cannot be fully exploited due to the low image quality associated to this modality. We propose to increase image quality and information content by combining images acquired from different echocardiographic windows. In this paper, we present an algorithm to register these datasets. Phase-based measures have been proposed as a suitable alternative to intensity-based ones for ultrasound image analysis. The proposed algorithm uses a new cost function, based on local orientation and phase differences, to align the datasets. Visual observation of results, and preliminary numerical analysis, show the robustness and accuracy of this method.