Warning: The NCBI web site requires JavaScript to function. more...

Sign in to NCBI

Result Filters

We are sorry, but NCBI web applications do not support your browser and may not function properly. More information

IEEE Trans Med Imaging. 2008 Oct;27(10):1389-403. doi: 10.1109/TMI.2008.920609.

Restoration of DWI data using a Rician LMMSE estimator.

Aja-Fernandez S, Niethammer M, Kubicki M, Shenton ME, Westin CF.

Source

Laboratory for Mathematics in Imaging, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.

Abstract

This paper introduces and analyzes a linear minimum mean square error (LMMSE) estimator using a Rician noise model and its recursive version (RLMMSE) for the restoration of diffusion weighted images. A method to estimate the noise level based on local estimations of mean or variance is used to automatically parametrize the estimator. The restoration performance is evaluated using quality indexes and compared to alternative estimation schemes. The overall scheme is simple, robust, fast, and improves estimations. Filtering diffusion weighted magnetic resonance imaging (DW-MRI) with the proposed methodology leads to more accurate tensor estimations. Real and synthetic datasets are analyzed.

PMID:: 18815091; [PubMed - indexed for MEDLINE]
PMCID:: PMC2756835

Free PMC Article

Images from this publication.See all images (20)Free text

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Fig. 12

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Fig. 17

Fig. 18

Fig. 19

Fig. 20

Publication Types, MeSH Terms, Grant Support

Publication Types

MeSH Terms

Grant Support

LinkOut - more resources

Full Text Sources

Other Literature Sources

COS Scholar Universe

Supplemental Content

Icon for IEEE Engineering in Medicine and Biology Society

Icon for PubMed Central

Save items

loading

Click here to read article using PubReader

Related citations in PubMed

Joint LMMSE estimation of DWI data for DTI processing. [Med Image Comput Comput Assist...]
Joint LMMSE estimation of DWI data for DTI processing.
Tristán-Vega A, Aja-Fernández S. Med Image Comput Comput Assist Interv. 2008; 11(Pt 2):27-34.
Noise and signal estimation in magnitude MRI and Rician distributed images: a LMMSE approach. [IEEE Trans Image Process. 2008]
Noise and signal estimation in magnitude MRI and Rician distributed images: a LMMSE approach.
Aja-Fernandez S, Alberola-Lopez C, Westin CF. IEEE Trans Image Process. 2008 Aug; 17(8):1383-98.
Signal LMMSE estimation from multiple samples in MRI and DT-MRI. [Med Image Comput Comput Assist...]
Signal LMMSE estimation from multiple samples in MRI and DT-MRI.
Aja-Fernández S, Alberola-López C, Westin CF. Med Image Comput Comput Assist Interv. 2007; 10(Pt 2):368-75.
Clinical DT-MRI estimation, smoothing, and fiber tracking with log-Euclidean metrics. [IEEE Trans Med Imaging. 2007]
Clinical DT-MRI estimation, smoothing, and fiber tracking with log-Euclidean metrics.
Fillard P, Pennec X, Arsigny V, Ayache N. IEEE Trans Med Imaging. 2007 Nov; 26(11):1472-82.
Noise-driven anisotropic diffusion filtering of MRI. [IEEE Trans Image Process. 2009]
Noise-driven anisotropic diffusion filtering of MRI.
Krissian K, Aja-Fernández S. IEEE Trans Image Process. 2009 Oct; 18(10):2265-74. Epub 2009 Jun 19.

See reviews... See all...

Cited by 4 PubMed Central articles

Excessive extracellular volume reveals a neurodegenerative pattern in schizophrenia onset. [J Neurosci. 2012]
Excessive extracellular volume reveals a neurodegenerative pattern in schizophrenia onset.
Pasternak O, Westin CF, Bouix S, Seidman LJ, Goldstein JM, Woo TU, Petryshen TL, Mesholam-Gately RI, McCarley RW, Kikinis R, et al. J Neurosci. 2012 Nov 28; 32(48):17365-72.
Evaluation of the female pelvic floor in pelvic organ prolapse using 3.0-Tesla diffusion tensor imaging and fibre tractography. [Eur Radiol. 2012]
Evaluation of the female pelvic floor in pelvic organ prolapse using 3.0-Tesla diffusion tensor imaging and fibre tractography.
Zijta FM, Lakeman MM, Froeling M, van der Paardt MP, Borstlap CS, Bipat S, Montauban van Swijndregt AD, Strijkers GJ, Roovers JP, Nederveen AJ, et al. Eur Radiol. 2012 Dec; 22(12):2806-13. Epub 2012 Jul 14.
Optimal real-time estimation in diffusion tensor imaging. [Magn Reson Imaging. 2012]
Optimal real-time estimation in diffusion tensor imaging.
Casaseca-de-la-Higuera P, Tristán-Vega A, Aja-Fernández S, Alberola-López C, Westin CF, San José Estépar R. Magn Reson Imaging. 2012 May; 30(4):506-17. Epub 2012 Feb 2.

Related information

Related Citations
Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
References for this PMC Article
Citation referenced in PubMed article. Only valid for PubMed citations that are also in PMC.
Free in PMC
Free full text articles in PMC
Cited in PMC
Full-text articles in the PubMed Central Database that cite the current articles.

Recent activity

Clear Turn Off Turn On

Restoration of DWI data using a Rician LMMSE estimator.
Restoration of DWI data using a Rician LMMSE estimator.
IEEE Trans Med Imaging. 2008 Oct ;27(10):1389-403. doi: 10.1109/TMI.2008.920609.

PubMed

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...

You are here: NCBI > Literature > PubMed

Write to the Help Desk