1、Designation: E2738 11E2738 13Standard Practice forDigital Imaging and Communication NondestructiveEvaluation (DICONDE) for Computed Radiography (CR) TestMethods1This standard is issued under the fixed designation E2738; the number immediately following the designation indicates the year oforiginal a
2、doption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Def
3、ense.1. Scope*1.1 This practice facilitates the interoperability of computed radiography (CR) imaging and data acquisition equipment byspecifying image data transfer and archival storage methods in commonly accepted terms. This practice is intended to be used inconjunction with Practice E2339 on Dig
4、ital Imaging and Communication in Nondestructive Evaluation (DICONDE). PracticeE2339 defines an industrial adaptation of the NEMA Standards Publication titled Digital Imaging and Communications inMedicine (DICOM, see http:/medical.nema.org), an international standard for image data acquisition, revi
5、ew, storage and archivalstorage. The goal of Practice E2339, commonly referred to as DICONDE, is to provide a standard that facilitates the display andanalysis of NDE results on any system conforming to the DICONDE standard. Toward that end, Practice E2339 provides a datadictionary and a set of info
6、rmation modules that are applicable to all NDE modalities. This practice supplements Practice E2339by providing information object definitions, information modules and a data dictionary that are specific to computed radiographytest methods.1.2 This practice has been developed to overcome the issues
7、that arise when analyzing or archiving data from CR test equipmentusing proprietary data transfer and storage methods.As digital technologies evolve, data must remain decipherable through the useof open, industry-wide methods for data transfer and archival storage. This practice defines a method whe
8、re all standard CRtechnique parameters and test results are communicated and stored in a standard manner regardless of changes in digitaltechnology.1.3 This practice does not specify:1.3.1 A testing or validation procedure to assess an implementations conformance to the standard.1.3.2 The implementa
9、tion details of any features of the standard on a device claiming conformance.1.3.3 The overall set of features and functions to be expected from a system implemented by integrating a group of devices eachclaiming DICONDE conformance.1.4 Although this practice contains no values that require units,
10、it does describe methods to store and communicate data thatdo require units to be properly interpreted. The SI units required by this practice are to be regarded as standard. No other unitsof measurement are included in this practice.1.5 This standard does not purport to address all of the safety co
11、ncerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E1316 Terminology for Nondestructive Exa
12、minationsE1475 Guide for Data Fields for Computerized Transfer of Digital Radiological Examination DataE2339 Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)1 This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direc
13、t responsibility of Subcommittee E07.11 on Digital Imagingand Communication in Nondestructive Evaluation (DICONDE).Current edition approved Dec. 1, 2011Dec. 15, 2013. Published January 2012January 2014. Originally approved in 2010. Last previous edition approved in 20102011 asE2738 - 10.E2738 - 11.
14、DOI: 10.1520/E2738-11.10.1520/E2738-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not a
15、n ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate.
16、In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.2 O
17、ther Documentation:National Electrical Manufacturers Association Standard for Digital Imaging and Communication in Medicine (DICOM), 2011.3. Terminology3.1 Definitions:3.1.1 Nondestructive evaluation terms used in this practice can be found in Terminology E1316.3.1.2 DICONDE terms used in this pract
18、ice are defined in Practice E2339.4. Summary of Practice4.1 A fundamental principle of DICONDE is the use of standard definitions and attribute formats for data communication andstorage. This means all systems that are DICONDE compliant use a common data dictionary and common communicationprotocols.
19、 To further standardization, the elements in the data dictionary are organized into common groups referred to asinformation modules. The data dictionary and information modules common to all NDE modalities are defined in Practice E2339.4.2 The data dictionary and information modules specified in Pra
20、ctice E2339 do not cover the information storage requirementsfor each individual modality (CT, DR, CR, UT, etc.). Additions to the data dictionary and information modules are required tosupport the individual modalities. This practice contains the additions to the DICONDE data dictionary and informa
21、tion modulesnecessary for CR inspection.4.3 The highest organizational level in the DICONDE information model is the information object definition (IOD). Aninformation object definition is a collection of the information modules necessary to represent a set of test results from a specificmodality. T
22、his practice contains information object definitions for CR inspection.5. Significance and Use5.1 Personnel that are responsible for the creation, transfer, and storage of computed radiography NDE data will use thispractice. This practice will define a set of information modules that along with the
23、Practice E2339 and the DICOM standard willprovide a standard means to organize CR inspection data. The CR inspection data may be displayed and analyzed on any devicethat conforms to the standard. Personnel wishing to view any CR inspection data stored in accordance with Practice E2339 mayuse this pr
24、actice to help them decode and display the data contained in the DICONDE compliant inspection record.6. Information Object Definitions6.1 NDE Computed Radiography Image IOD Description:6.1.1 The NDE Computed Radiography (CR) Image Information Object Definition specifies an image that has been create
25、d bya computed radiography imaging device for NDE purposes. The IOD definition will follow that for CR Images found in Part 3,Section A.2 of the DICOM standard except as noted in Table 1. Table 1 is not stand-alone and must be used in conjunction withPart 3, Section A.2 of the DICOM standard to have
26、 a complete definition of the NDE CR information object.6.1.2 This IOD will use the Service-Object Pair (SOP) class for the CR IOD as defined in Part 4, Section B.5 of the DICOMstandard.7. Information Modules7.1 NDE CR Series Module:7.1.1 Table 2 specifies the attributes that describe NDE Computed R
27、adiography images.7.2 NDE Source Radiography Module:7.2.1 Table 3 specifies the attributes that describe NDE Source Radiography Module.TABLE 1 NDE CR Image Information Object DefinitionDICOM Module DICONDE Module Reference UsagePatient Component E2339, Section 7 MClinical Trial Subject Not Applicabl
28、eGeneral Study Component Study E2339, Section 7 MPatient Study Not ApplicableClinical Trial Study Not ApplicableGeneral Series Component Series E2339, Section 7 MCR Series NDE CR Series Section 7.1 MClinical Trial Series Not Applicable UGeneral Equipment NDE Equipment E2339, Section 7 MContrast/bolo
29、us Not Applicable UCR image NDE CR image Section 7.3 MNDE Indication E2339, Section 7 UNDE Geometry E2339, Section 7 UNDE Source Radiography Section 7.2 UE2738 1327.3 NDE CR Image Module:7.3.1 Table 4 specifies the attributes that describe NDE CR Image Module.8. Keywords8.1 Computed Radiography; CR;
30、 database; DICOM; DICONDE; digital data storage; digital data transmission; file formatTABLE 2 NDE CR Series Module AttributesAttribute Name Tag VR VM Type DescriptionPart Examined (0018,0015) CS 1 2 Text description of the part examinedView Position (0018,5101) CS 1 2 Radiographic view. Defined Ter
31、ms:FA = Forward/AftAF = Aft/ForwardLL = Left LateralRL = Right LateralRLD = Right Lateral DecubitusLLD = Left Lateral DecubitusFilter Type (0018,1160) SH 1 3 Label for the type of filter inserted into the x-raybeamCollimator/grid Name (0018,1180) SH 1 3 Label describing any grid inserted.Focal Spot
32、(0018,1190) DS 1-n 3 Size of the focal spot in mm. For devices withvariable focal spot or multiple focal spots, smalldimension followed by large dimension.Plate Type (0018,1260) SH 1 3 Label of the type of storage phosphor platesused in this seriesPhosphor Type (0018,1261) LO 1 3 Label of type of ph
33、osphor on the platesTABLE 3 NDE Source Radiography Module AttributesAttribute Name Tag VR VM Type DescriptionSource Type (300A,0214) CS 1 1 Type of Source: Defined Terms:POINTLINECYLINDERSPHERESource Manufacturer (300A,0216) LO 1 3 Manufacturer of SourceActive Source Diameter (300A,0218) DS 1 3 Diam
34、eter of active Source (mm)Active Source Length (300A,0220) DS 1 3 Length of active Source (mm)Material ID (300A,00E1) DS 1 3 User-supplied identifier for encapsulation material ofactive SourceSource EncapsulationNominal Thickness(300A,0222) DS 1 3 Nominal thickness of wall of encapsulation (mm)Sourc
35、e EncapsulationNominal Transmission(300A,0224) DS 1 3 Nominal transmission through wall of encapsulation(between 0 and 1)Source Isotope Name (300A,0226) LO 1 1 Name of IsotopeSource Isotope Half-Life (300A,0228) DS 1 1 Half-life of Isotope (days)Source Strength Units (300A,0229) CS 1 1C Measurement
36、of Source StrengthRequired if the source is not a gamma-emitting (photon)source. May be present otherwise.Enumerate values:AIR Kerma Rate = Air Kerma Rate if Source is Gamma-emitting IsotopeReference Air Kerma Rate (300A,022A) 1 1 Air Kerma Rate in air of Isotope specified at SourceStrenth Reference
37、 Date (300A,022C) and SourceStrength Reference Time (300A,022E) (in Gy h-1 at 1m). Values shall be zero for non-gamma sources.Source Strength (300A,022B) 1 1C Source Strength of Isotope at Source Strength ReferenceDate (300A,022C) and Source Strength Reference Time(300A,022E), in units specified in
38、Source Strength Units(300A,0229).Required if the source is not a gamma-emitting (photon)source.Source Strength ReferenceDate(300A,022C) DT 1 1 Reference date for Reference Air Kerma Rate(300A,022A) or Source Strength (300A,022B) of Isotope.Source Strength ReferenceTime(300A,022E) TM 1 1 Reference ti
39、me for Reference Air Kerma Rate(300A,022A) or Source Strength (300A,022B) of Isotope.E2738 133TABLE 4 NDE CR Image Module AttributesAttribute Name Tag VR VM Type DescriptionPhotometric Interpretation (0028,0004) CS 1 1 Specifies the intended interpretation of the pixel data.Shall have one of the fol
40、lowing enumerated values:MONOCHROME 1MONOCHROME 2KVP (0018,0060) DS 1 3 Peak kilo voltage output of the x-ray generator used.Plate ID (0018,1004) LO 1 3 The ID or serial number of the sensing plate upon whichthe image was acquired.Distance Source to Detector (0018,1110) DS 1 3 Distance in mm from so
41、urce to detector centerDistance Source to Part (0018,1111) DS 1 3 Distance in mm from the source to isocenter (center offield of view).Exposure Time (0018,1150) IS 1 3 Time of X-ray exposure in msecX-ray Tube Current (0018,1151) IS 1 3 X-ray Tube Current in mAExposure (0018,1152) IS 1 3 The exposure
42、 expressed in mAs, for example calculatedfrom Exposure Time and X-ray Tube Current.Exposure in As (0018,1153) IS 1 3 The exposure expressed in As, for example calculatedfrom Exposure Time and X-ray Tube Current.Image Pixel Spacing (0018,1164) DS 2 3 Physical distance measured at the front plane of t
43、heImage Receptor housing between the center of eachpixel. Specified by a numeric pair row spacing value(delimiter) column spacing value in mm.In the case of CR, the front plane is defined to be theexternal surface of the CR plate closest to the part andradiation source.Generator Power (0018,1170) IS
44、 1 3 Power in kW to the X-ray generator.Acquisition DeviceProcessing Description(0018,1400) LO 1 3 Describes device-specific processing associated with theimage.Acquisition DeviceProcessing Code(0018,1401) LO 1 3 Code representing the device-specific processingassociated with the image.Cassette Orie
45、ntation (0018,1402) CS 1 3 Orientation of the cassette used to properly position theimage for display. Enumerated Values:LANDSCAPEPORTRAITCassette Size (0018,1403) CS 1 3 Size of the cassette. Defined terms18 cm 24 cm8 in 10 in24 cm 30 cm10 in 12 in30 cm 35 cm30 cm 40 cm11 in 14 in35 cm 35 cm14 in 1
46、4 in35 cm 43 cm14 in 17 inExposures on Plate (0018,1404) US 1 3 Total number of X-ray exposures that have been madeon the plate identified in Plate ID. (0018,1004)Relative X-ray Exposure (0018,1405) IS 1 3 Relative X-ray exposure on the plate. Meaning of valuesis implementation specific.Sensitivity
47、(0018,6000) 1 3 Read out sensitivity.X-ray Tube Current in A (0018,8151) DS 1 3 X-ray Tube Current in A.Image Quality Indicator Type (0018,40A0) LO 1-n 3 Description of the type of Image Quality Indicator used.Image Quality IndicatorMaterial(0018,40A1) LO 1-n 3 Description of the material used to ma
48、nufacture theImage Quality Indicator.Image Quality Indicator Size (0018,40A2) LO 1-n 3 Designation for the size of the Image Quality Indicatorused. A typical size designation is 2-2T where the firstnumber indicates that the IQI thickness is two percent ofthe test material thickness and second number
49、 definesthe hole diameter as twice the IQI thickness.E2738 134SUMMARY OF CHANGESCommittee E07 has identified the location of selected changes to this standard since the last issue(E2738 - 10E2738 - 11) that may impact the use of this standard. (December 1, 2011)15, 2013)(1) Added required statementSection 7.2 on safety.to describe the NDE Source Radiography module.(2) Updated DICOMAdded 7.3 standard reference into add NDE-specific 2.2.attributes to the CR Image module. The attributesadded were for X-ray Current in A and IQI description.(3) Cla
