A statistical approach for MR and CT images comparison

被引：21

作者：

Andria, Gregorio ^{[1
]}

Attivissimo, Filippo ^{[1
]}

Lanzolla, Anna Maria Lucia ^{[1
]}

机构：

[1] Polytech Bari, Dept Elect & Elect, I-70125 Bari, Italy

来源：

MEASUREMENT | 2013年 / 46卷 / 01期

关键词：

Biomedical magnetic resonance imaging; Rayleigh scattering; Computer tomography; RICIAN DISTRIBUTION; NOISE;

D O I：

10.1016/j.measurement.2012.05.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently, many complex medical exams require correlating the information from magnetic resonance (MR) and computed tomography (CT) images in order to obtain a more accurate diagnostics. This is rather complex when the images under test have very different noise level. In this paper, a technique to compare the quality of the CT and MR images is introduced. The proposed technique is useful to assess the effect of different noise distribution on medical images and to equalize the examinations produced by different imagining technologies in terms of clearness of images and sharpness of contours. The authors, after examining the statistical properties of the noise affecting CT and MR images, analyze its effect on final image quality. Then, a methodology to compare the mean square errors relevant to CT and MR images is proposed. The study was carried out using 148 images obtained from patients under neuropsychological test. The experimental tests have been performed by corrupting the original data with different noise levels. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：57 / 65

页数：9

共 25 条

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

GUDBJARTSSON, H ;

PATZ, S .

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

[12] Tc-HMPAO SPECT in persistent postconcussion syndrome after mild head injury: Comparison with MRI/CT [J].

Kant, R ;

SmithSeemiller, L ;

Isaac, G ;

Duffy, J .

BRAIN INJURY, 1997, 11 (02) :115-124

[13]

Lauwers L., 2010, MEAS SCI TECHNOL, V201, P1

[14] STATISTICAL APPROACH TO X-RAY CT IMAGING AND ITS APPLICATIONS IN IMAGE-ANALYSIS .1. STATISTICAL-ANALYSIS OF X-RAY CT IMAGING [J].

LEI, TH ;

SEWCHAND, W .

IEEE TRANSACTIONS ON MEDICAL IMAGING, 1992, 11 (01) :53-61

[15]

LISANTI CJ, 2003, MRI BASICS

[16]

Lu HB, 2002, IEEE NUCL SCI CONF R, P1662, DOI 10.1109/NSSMIC.2001.1008660

[17]

Ng SH, 2005, J NUCL MED, V46, P1136

[18]

Postolache C., P IMTC 06 SORR, P1801

[19] Fourier analysis in magnetic induction tomography: mapping of anisotropic, inhomogeneous resistivity [J].

Puwal, Steffan ;

Roth, Bradley J. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2011, 22 (08)

[20] Maximum-likelihood estimation of Rician distribution parameters [J].

Sijbers, J ;

den Dekker, AJ ;

Scheunders, P ;

Van Dyck, D .

IEEE TRANSACTIONS ON MEDICAL IMAGING, 1998, 17 (03) :357-361

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