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NEMA MS 3:2008

NEMA MS 3:2008 Determination Of Image Uniformity In Diagnostic Magnetic Resonance Images Defines a method for measuring image-uniformity performance of diagnostic magnetic resonance imaging systems using single channel volume coils and performing proton imaging.

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Table of Contents

Preamble
Foreword
Rationale
Scope
Section1-DEFINITION
1.1MeasurementRegionofInterest(MROI)
1.2MeasurementSubregionofInterest(SROI)
1.3ImageNon-uniformity
1.4NormalizedAbsoluteAverageDeviation
1.5PeakDeviationNon-uniformity
1.6Gray-ScaleUniformityMap
1.7MaximumSelectableVolume
1.8SpecificationVolume
1.9SpecificationArea
Section2-METHODSOFMEASUREMENT
2.1TestHardware
2.1.1SizeoftheSignalProducingVolume
2.1.2MRCharacteristicsoftheSignalProducingVolume
2.2ScanConditions
2.3MeasurementProcedure
2.3.1Pre-processingoftheImage
2.3.2PeakDeviationNon-uniformity
2.3.3Gray-ScaleUniformityMap
2.3.4ACRMRAccreditationProgram(ACR-MRAP)Uniformity
2.3.5NormalizedAbsoluteAverageDeviationUniformity
Section3-SOURCESOFERRORANDREPORTINGOFRESULTS
3.1SourcesofError
3.2ReportingofResults
3.2.1ScanParameters
AnnexA-CHANGESTOSTANDARD

Abstract

Defines a method for measuring image-uniformity performance of diagnostic magnetic resonance imaging systems using single channel volume coils and performing proton imaging.

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