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Parallel MR imaging

Open access
Deshmane, Anagha, Gulani, Vikas, Griswold, Mark A., Seiberlich, Nicole·2012·Journal of Magnetic Resonance Imaging

Abstract

Parallel imaging is a robust method for accelerating the acquisition of magnetic resonance imaging (MRI) data, and has made possible many new applications of MR imaging. Parallel imaging works by acquiring a reduced amount of k‐space data with an array of receiver coils. These undersampled data can be acquired more quickly, but the undersampling leads to aliased images. One of several parallel imaging algorithms can then be used to reconstruct artifact‐free images from either the aliased images (SENSE‐type reconstruction) or from the undersampled data (GRAPPA‐type reconstruction). The advantages of parallel imaging in a clinical setting include faster image acquisition, which can be used, for instance, to shorten breath‐hold times resulting in fewer motion‐corrupted examinations. In this article the basic concepts behind parallel imaging are introduced. The relationship between undersampling and aliasing is discussed and two commonly used parallel imaging methods, SENSE and GRAPPA, are explained in detail. Examples of artifacts arising from parallel imaging are shown and ways to detect and mitigate these artifacts are described. Finally, several current applications of parallel imaging are presented and recent advancements and promising research in parallel imaging are briefly reviewed. J. Magn. Reson. Imaging 2012;36:55–72. © 2012 Wiley Periodicals, Inc.

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Metadata

Authors
Deshmane, A., Gulani, V., Griswold, M. A., & Seiberlich, N.
Venue
Journal of Magnetic Resonance Imaging
Publisher
Wiley
Published
2012-06-13
Volume
36
Issue
1
Pages
55-72
ISSN
  • 1053-1807 (ISSN-L)
  • 1522-2586
OpenAlex
W2014547837
Cited by
606
References
44
FWCI
12.46
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Parallel MR imaging. https://app.cochat.ai/papers/10.1002/jmri.23639
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Deshmane, A., Gulani, V., Griswold, M. A., & Seiberlich, N. (2012). Parallel MR imaging. Journal of Magnetic Resonance Imaging. https://doi.org/10.1002/jmri.23639

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