Automatic filter design in harp analysis of tagged magnetic resonance images

M. Marinelli, V. Positano, N. F. Osman, F. A. Recchia, M. Lombardi, L. Landini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Harmonic phase (HARP) is an image processing technique of MR-tagged images in frequency domain developed to evaluate the regional tissue strain. The filtering stage is a key point in this method because all information about the deformation have to be included in the analysis. In this paper we develop an automatic method to define the filter parameters in order to minimize errors in the strain evaluation and to avoid operator related variability. A software model is built to investigate the error in strain estimation caused by filter parameters variability and to evaluate the developed method. The automatic technique models each spectral peak with a bidimensional Gaussian function and uses these information to create an optimal elliptic filter. We validated the automatic method on simulated data set. In real tagged MR images analysis, the method achieved the same performance as the manual analysis, considered the gold standard, eliminating the inter-operator variability.

Original languageEnglish (US)
Title of host publication2008 5th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro, Proceedings, ISBI
Pages1429-1432
Number of pages4
DOIs
StatePublished - Sep 10 2008
Event2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI - Paris, France
Duration: May 14 2008May 17 2008

Publication series

Name2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI

Other

Other2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI
CountryFrance
CityParis
Period5/14/085/17/08

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Keywords

  • Automatic filter
  • Image processing
  • Magnetic resonance tagging
  • Software model
  • Strain analysis

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Marinelli, M., Positano, V., Osman, N. F., Recchia, F. A., Lombardi, M., & Landini, L. (2008). Automatic filter design in harp analysis of tagged magnetic resonance images. In 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI (pp. 1429-1432). [4541275] (2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI). https://doi.org/10.1109/ISBI.2008.4541275