Intra-subject multi-slab registration: Application to hippocampal ultra-high resolution imaging at 7T

Linda Marrakchi-Kacem, Alexandre Vignaud, Julien Sein, Johanne Germain, Thomas R. Henry, Cyril Poupon, Lucie Hertz-Pannier, Stéphane Lehéricy, Olivier Colliot, Pierre François Van De Moortele, Marie Chupin

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

Abstract

Magnetic Resonance Imaging (MRI) of anatomical structures usually requires a compromise between acquisition time and image resolution. In fact higher resolutions require longer acquisition times which may result in movement artifacts that alter image quality. With the progress of high field imaging, visualizing microstructural details of anatomical structures became possible. In the case of the hippocampus, which is a brain structure involved in memory, visualizing the inner structure of the hippocampus would allow a better characterization of Alzheimer disease and temporal lobe epilepsy. However quantifying the inner structure of the hippocampus requires at-most 300 μm in-plane resolutions; this yields long acquisitions sensitive to movement artifacts. In this work we propose a method to reduce movement artifacts for ultra-high resolution imaging. To do so, the long MR acquisition is split into shorter sub-slabs that are then registered to a low resolution short acquisition in order to reconstruct a 3D-consistent high resolution volume. This procedure is illustrated for ultra-high resolution imaging of the hippocampus inner structure at 7T. The registration method proved robust on 37 subjects.

Original languageEnglish (US)
Title of host publication2nd International Conference on Advanced Technologies for Signal and Image Processing, ATSIP 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages348-353
Number of pages6
ISBN (Electronic)9781467385268
DOIs
StatePublished - Jul 26 2016
Event2nd International Conference on Advanced Technologies for Signal and Image Processing, ATSIP 2016 - Monastir, Tunisia
Duration: Mar 21 2016Mar 24 2016

Publication series

Name2nd International Conference on Advanced Technologies for Signal and Image Processing, ATSIP 2016

Other

Other2nd International Conference on Advanced Technologies for Signal and Image Processing, ATSIP 2016
CountryTunisia
CityMonastir
Period3/21/163/24/16

Keywords

  • hippocampus inner structure
  • registration
  • ultra-high resolution imaging

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    Marrakchi-Kacem, L., Vignaud, A., Sein, J., Germain, J., Henry, T. R., Poupon, C., Hertz-Pannier, L., Lehéricy, S., Colliot, O., Van De Moortele, P. F., & Chupin, M. (2016). Intra-subject multi-slab registration: Application to hippocampal ultra-high resolution imaging at 7T. In 2nd International Conference on Advanced Technologies for Signal and Image Processing, ATSIP 2016 (pp. 348-353). [7523104] (2nd International Conference on Advanced Technologies for Signal and Image Processing, ATSIP 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ATSIP.2016.7523104