Assessment of cardiac mass from tagged magnetic resonance images View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2016-02

AUTHORS

Abram W. Makram, Ayman M. Khalifa, Hossam El-Rewaidy, Ahmed S. Fahmy, El-Sayed H. Ibrahim

ABSTRACT

PURPOSE: Tagged and cine magnetic resonance imaging (tMRI and cMRI) techniques are used for evaluating regional and global heart function, respectively. Measuring global function parameters directly from tMRI is challenging due to the obstruction of the anatomical structure by the tagging pattern. The purpose of this study was to develop a method for processing the tMRI images to improve the myocardium-blood contrast in order to estimate global function parameters from the processed images. MATERIALS AND METHODS: The developed method consists of two stages: (1) removing the tagging pattern based on analyzing and modeling the signal distribution in the image's k-space, and (2) enhancing the blood-myocardium contrast based on analyzing the signal intensity variability in the two tissues. The developed method is implemented on images from twelve human subjects. RESULTS: Ventricular mass measured with the developed method showed good agreement with that measured from gold-standard cMRI images. Further, preliminary results on measuring ventricular volume using the developed method are presented. CONCLUSION: The promising results in this study show the potential of the developed method for evaluating both regional and global heart function from a single set of tMRI images, with associated reduction in scan time and patient discomfort. More... »

PAGES

158-165

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11604-015-0504-4

DOI

http://dx.doi.org/10.1007/s11604-015-0504-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1025395861

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/26627894


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