NEMA MS 3:2008 (R2014)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Determination of Image Uniformity in Diagnostic Magnetic Resonance Images
24-04-2023
31-03-2021
Preamble
Foreword
Rationale
Scope
Section 1 - DEFINITION
1.1 Measurement Region of Interest (MROI)
1.2 Measurement Subregion of Interest (SROI)
1.3 Image Non-uniformity
1.4 Normalized Absolute Average Deviation
1.5 Peak Deviation Non-uniformity
1.6 Gray-Scale Uniformity Map
1.7 Maximum Selectable Volume
1.8 Specification Volume
1.9 Specification Area
Section 2 - METHODS OF MEASUREMENT
2.1 Test Hardware
2.1.1 Size of the Signal Producing Volume
2.1.2 MR Characteristics of the Signal Producing Volume
2.2 Scan Conditions
2.3 Measurement Procedure
2.3.1 Pre-processing of the Image
2.3.2 Peak Deviation Non-uniformity
2.3.3 Gray-Scale Uniformity Map
2.3.4 ACR MR Accreditation Program (ACR-MRAP) Uniformity
2.3.5 Normalized Absolute Average Deviation Uniformity
Section 3 - SOURCES OF ERROR AND REPORTING OF RESULTS
3.1 Sources of Error
3.2 Reporting of Results
3.2.1 Scan Parameters
Annex A - CHANGES TO STANDARD
Defines a method for measuring image-uniformity performance of diagnostic magnetic resonance imaging systems using single channel volume coils and performing proton imaging. This document does not address the use of surface coils, chemical shift imaging, or spectroscopy.
DocumentType |
Standard
|
PublisherName |
National Electrical Manufacturers Association
|
Status |
Superseded
|
SupersededBy |
EN 62464-1:2007 | Magnetic resonance equipment for medical imaging - Part 1: Determination of essential image quality parameters |
IEC 62464-1:2007 | Magnetic resonance equipment for medical imaging - Part 1: Determination of essential image quality parameters |
BS EN 62464-1:2007 | Magnetic resonance equipment for medical imaging Determination of essential image quality parameters |
I.S. EN 62464-1:2007 | MAGNETIC RESONANCE EQUIPMENT FOR MEDICAL IMAGING - PART 1: DETERMINATION OF ESSENTIAL IMAGE QUALITY PARAMETERS |
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