Automatic whole heart segmentation in static magnetic resonance image volumes

Authors:
Jochen Peters;Olivier Ecabert;Carsten Meyer;Hauke Schramm;Reinhard Kneser;Alexandra Groth;Jürgen Weese
Affiliations:
Philips Research Laboratories, X-Ray Imaging Systems, Aachen, Germany;Philips Research Laboratories, X-Ray Imaging Systems, Aachen, Germany;Philips Research Laboratories, X-Ray Imaging Systems, Aachen, Germany;FH Kiel, Kiel, Germany;Philips Research Laboratories, X-Ray Imaging Systems, Aachen, Germany;Philips Research Laboratories, X-Ray Imaging Systems, Aachen, Germany;Philips Research Laboratories, X-Ray Imaging Systems, Aachen, Germany
Venue:
MICCAI'07 Proceedings of the 10th international conference on Medical image computing and computer-assisted intervention
Year:
2007

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Abstract

We present a fully automatic segmentation algorithm for the whole heart (four chambers, left ventricular myocardium and trunks of the aorta, the pulmonary artery and the pulmonary veins) in cardiac MR image volumes with nearly isotropic voxel resolution, based on shape-constrained deformable models. After automatic model initialization and reorientation to the cardiac axes, we apply a multi-stage adaptation scheme with progressively increasing degrees of freedom. Particular attention is paid to the calibration of the MR image intensities. Detailed evaluation results for the various anatomical heart regions are presented on a database of 42 patients. On calibrated images, we obtain an average segmentation error of 0.76mm.