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  Single-shot curved slice imaging

Jochimsen, T. H., & Norris, D. G. (2002). Single-shot curved slice imaging. Magnetic Resonance Materials in Physics, Biology and Medicine, 14(1), 50-55. doi:10.1016/S1352-8661(01)00157-0.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-D9E3-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-C453-5
Genre: Journal Article

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 Creators:
Jochimsen, Thies H.1, Author              
Norris, David G.1, Author              
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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Free keywords: MRI; Curved slice; 2D RF pulse; Functional MRI; GRASE
 Abstract: The feasibility of imaging a curved slice with a single-shot technique so that the reconstructed image shows an un-warping of the slice is examined. This could be of practical importance when the anatomical structures of interest can be more efficiently covered with curved slices than with a series of flat planes. One possible example of such a structure is the cortex of the human brain. Functional imaging would especially benefit from this technique because several planar images can be replaced by a few curved slice images. A method is introduced that is based on multidimensional pulses to excite the desired curved slice profile. A GRASE imaging sequence is then applied that is tailored to the k-space representation of the curved slice. This makes it possible to capture the in-plane information of the slice with a single-shot technique. The method presented is limited to slices that are straight along one axis and can be approximated by a polygon. Reconstruction is performed using a simple numeric Fourier integration along the curved slice. This leads to an image that shows the desired un-warped representation of the slice. Experimental results obtained with this method from healthy volunteers are presented and demonstrate the feasibility of the proposed technique.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 239662
DOI: 10.1016/S1352-8661(01)00157-0
ISI: 000173478500008
Other: P7046
 Degree: -

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Title: Magnetic Resonance Materials in Physics, Biology and Medicine
Source Genre: Journal
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Publ. Info: Amsterdam : No longer published by Elsevier
Pages: - Volume / Issue: 14 (1) Sequence Number: - Start / End Page: 50 - 55 Identifier: ISSN: 0968-5243
CoNE: https://pure.mpg.de/cone/journals/resource/954926245532