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Validation by the HARP method of a new algorithm to assess left ventricular deformation on standard cine-MRI
We present an original algorithm to assess the deformations of the left ventricle on standard cardiac cine-MRI rather than tagged-MRI. Our results are validated by comparison with results derived from tagged image sequences that are analysed by the harmonic phase MRI (HARP MRI) method. First, a segm...
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Main Authors: | , , , , |
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Format: | Conference Proceeding |
Language: | English |
Subjects: | |
Online Access: | Request full text |
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Summary: | We present an original algorithm to assess the deformations of the left ventricle on standard cardiac cine-MRI rather than tagged-MRI. Our results are validated by comparison with results derived from tagged image sequences that are analysed by the harmonic phase MRI (HARP MRI) method. First, a segmentation process, based on a level set method is applied on a 2D+t dataset of MR images to detect endocardial contours. Second, the successive segmented contours are matched using a rigid registration. We then apply a morphing process implemented with a level set approach to track the position of points belonging to the endocardial contours. Finally, local measurements of myocardial deformations are derived from the previously determined matched contours |
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ISSN: | 0276-6574 2325-8853 |
DOI: | 10.1109/CIC.2005.1588122 |