Noise in Magnitude Magnetic Resonance Images

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dc.contributor.authorCardenas Blanco, Arturo
dc.contributor.authorTejos, Cristian
dc.contributor.authorIrarrazaval, Pablo
dc.contributor.authorCameron, Ian
dc.date.accessioned2024-01-10T12:06:58Z
dc.date.available2024-01-10T12:06:58Z
dc.date.issued2008
dc.description.abstractThe aims of this article are to review the properties of noise in magnitude MR images to clarify the terminology used when referring to the noise and to discourage the use of the terms Rician noise and Rician noise bias. The distribution of measured MR pixel intensities in the presence of noise is known to be Rician, and the width of this distribution is directly related to the Gaussian noise on the measured real and imaginary signals. It is the pixel magnitude values that follow the Rician distribution, not the noise. The term Rician noise should be used cautiously or, better still, avoided completely since inherent to this terminology is behavior that is not normally associated with noise, such as dependence on signal strength. This terminology is misleading and can lead to conceptual and practical misunderstandings. It is better to relate the image noise to the Gaussian noise on the real and imaginary signals. (C) 2008 Wiley Periodicals. Inc. Concepts Magn Reson Part A 32A: 409-416, 2008.
dc.description.funderOntario Research and Development Challenge Fund
dc.description.funderOttawa Health Research Institute
dc.description.funderFondecyt
dc.fechaingreso.objetodigital04-04-2024
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/cmr.a.20124
dc.identifier.eissn1552-5023
dc.identifier.issn1546-6086
dc.identifier.urihttps://doi.org/10.1002/cmr.a.20124
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76229
dc.identifier.wosidWOS:000261665300001
dc.information.autorucIngeniería;Irarrázaval P;S/I;57376
dc.information.autorucIngeniería;Tejos C;S/I;4027
dc.issue.numero6
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final416
dc.pagina.inicio409
dc.publisherWILEY
dc.revistaCONCEPTS IN MAGNETIC RESONANCE PART A
dc.rightsacceso restringido
dc.subjectRician distribution
dc.subjectRayleigh distribution
dc.subjectGaussian distribution
dc.subjectnoise
dc.subjectmagnitude image formation
dc.subjectRICIAN DISTRIBUTION
dc.subjectOPTIC-NERVE
dc.subjectMRI DATA
dc.subjectSIGNAL
dc.subjectSNR
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleNoise in Magnitude Magnetic Resonance Images
dc.typeartículo
dc.volumen32
sipa.codpersvinculados57376
sipa.codpersvinculados4027
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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