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Descripción
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| It is difficult to acquire tagged cardiac MR images with a high temporal and spatial resolution using clinical MR scanners. However, if such images are used for quantifying scores based on motion, it is essential a resolution as high as possible. This paper explores the influence of the temporal resolution of a tagged series on the quantification of myocardial dynamic parameters. To such purpose we have designed a SPAMM (Spatial Modulation of Magnetization) sequence allowing acquisition of sequences at simple and double temporal resolution. Sequences are processed to compute myocardial motion by an automatic technique based on the tracking of the harmonic phase of tagged images (the Harmonic Phase Flow, HPF). The results have been compared to manual tracking of myocardial tags. The error in displacement fields for double resolution sequences reduces 17%. | |
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Internacional
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Si |
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Nombre congreso
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Computers in Cardiology |
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Tipo de participación
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960 |
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Lugar del congreso
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Bolonia, Italia |
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Revisores
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Si |
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ISBN o ISSN
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0276-6574 |
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DOI
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Fecha inicio congreso
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14/09/2008 |
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Fecha fin congreso
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17/09/2008 |
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Desde la página
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785 |
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Hasta la página
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788 |
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Título de las actas
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Computers in Cardiology 2008 |