Field Map Reconstruction in Magnetic Resonance Imaging Using Bayesian Estimation

被引：22

作者：

Baselice, Fabio ^{[1
]}

Ferraioli, Giampaolo ^{[1
]}

Shabou, Aymen ^{[2
]}

机构：

[1] Univ Napoli Parthenope, Dipartimento Tecnol, Naples, Italy

[2] LTCI, CNRS, TELECOM ParisTech, Inst TELECOM, Paris, France

来源：

SENSORS | 2010年 / 10卷 / 01期

关键词：

Magnetic Resonance Imaging; field map estimation; phase unwrapping; bayesian estimation; graph-cuts; Markov Random Field; MAXIMUM-LIKELIHOOD-ESTIMATION; RICIAN DISTRIBUTION;

D O I：

10.3390/s100100266

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Field inhomogeneities in Magnetic Resonance Imaging (MRI) can cause blur or image distortion as they produce off-resonance frequency at each voxel. These effects can be corrected if an accurate field map is available. Field maps can be estimated starting from the phase of multiple complex MRI data sets. In this paper we present a technique based on statistical estimation in order to reconstruct a field map exploiting two or more scans. The proposed approach implements a Bayesian estimator in conjunction with the Graph Cuts optimization method. The effectiveness of the method has been proven on simulated and real data.

引用

页码：266 / 279

页数：14

共 17 条

[1] Synthetic aperture radar interferometry [J].

Bamler, R ;

Hartl, P .

INVERSE PROBLEMS, 1998, 14 (04) :R1-R54

[2] Fast approximate energy minimization via graph cuts [J].

Boykov, Y ;

Veksler, O ;

Zabih, R .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 2001, 23 (11) :1222-1239

[3] The triangle method for finding the corner of the L-curve [J].

Castellanos, JL ;

Gómez, S ;

Guerra, V .

APPLIED NUMERICAL MATHEMATICS, 2002, 43 (04) :359-373

[4] SAR Image Regularization With Fast Approximate Discrete Minimization [J].

Denis, Loic ;

Tupin, Florence ;

Darbon, Jerome ;

Sigelle, Marc .

IEEE TRANSACTIONS ON IMAGE PROCESSING, 2009, 18 (07) :1588-1600

[5] Regularized field map estimation in MRI [J].

Funai, Amanda K. ;

Fessler, Jeffrey A. ;

Yeo, Desmond T. B. ;

Olafsson, Valur T. ;

Noll, Douglas C. .

IEEE TRANSACTIONS ON MEDICAL IMAGING, 2008, 27 (10) :1484-1494

[6] STOCHASTIC RELAXATION, GIBBS DISTRIBUTIONS, AND THE BAYESIAN RESTORATION OF IMAGES [J].

GEMAN, S ;

GEMAN, D .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1984, 6 (06) :721-741

[7] THE RICIAN DISTRIBUTION OF NOISY MRI DATA [J].

GUDBJARTSSON, H ;

PATZ, S .

MAGNETIC RESONANCE IN MEDICINE, 1995, 34 (06) :910-914

[8] Robust Water/Fat Separation in the Presence of Large Field Inhomogeneities Using a Graph Cut Algorithm [J].

Hernando, Diego ;

Kellman, P. ;

Haldar, J. P. ;

Liang, Z-P. .

MAGNETIC RESONANCE IN MEDICINE, 2010, 63 (01) :79-90

[9] Exact optimization for Markov random fields with convex priors [J].

Ishikawa, H .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 2003, 25 (10) :1333-1336

[10]

Kay S., 1993, Fundamentals of statistical processing, volume I: estimation theory, VI

← 1 2 →