Validation by the HARP method of a new algorithm to assess left ventricular deformation on standard cine-MRI

Author

Chenoune, Y. ; Deléchelle, E. ; Petit, E. ; Garot, J. ; Rahmouni, A.

Author_Institution

Lab. Images, Signaux et Systemes Intelligents, Univ. Paris XII, Creteil

fYear

2005

fDate

25-28 Sept. 2005

Firstpage

403

Lastpage

406

Abstract

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

Keywords

biomechanics; biomedical MRI; biomedical measurement; blood vessels; cardiovascular system; deformation; image morphing; image registration; image segmentation; image sequences; medical image processing; set theory; endocardial contour detection; harmonic phase MRI method; image morphing process; image segmentation process; image sequences; left ventricular deformation measurement; level set method; myocardial deformation measurement; rigid registration; standard cardiac cine-MRI; Cardiac disease; Equations; Harmonic analysis; Image analysis; Image segmentation; Image sequence analysis; Image sequences; Level set; Magnetic resonance imaging; Myocardium;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 2005

Conference_Location

Lyon

Print_ISBN

0-7803-9337-6

Type

conf

DOI

10.1109/CIC.2005.1588122

Filename

1588122