Материал: part03

A.34.2 Basic Voice Audio Waveform IOD​

A.34.2.1 Basic Voice Audio Waveform IOD Description​

The Basic Voice Audio Waveform IOD is the specification of a digitized sound that has been acquired or created by an audio modality​ or by an audio acquisition function within an imaging modality. A typical use is report dictation.​

A.34.2.2 Basic Voice Audio Waveform IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Waveform IE below the Series IE.​

A.34.2.3 Basic Voice Audio Waveform IOD Module Table​

Table A.34.2-1 specifies the Modules of the Basic Voice Audio Waveform IOD.​

Table A.34.2-1. Basic Voice Audio Waveform IOD Modules​

A.34.2.4 Basic Voice Audio IOD Content Constraints​

A.34.2.4.1 Modality​

The value of Modality (0008,0060) shall be AU.​

A.34.2.4.2 Waveform Sequence​

The number of Waveform Sequence (5400,0100) Items shall be one.​

A.34.2.4.3 Number of Waveform Channels​

The value of Number of Waveform Channels (003A,0005) in the Waveform Sequence (5400,0100) Item shall be 1 or 2.​

A.34.2.4.4 Sampling Frequency​

The value of Sampling Frequency (003A,001A) in the Waveform Sequence (5400,0100) Item shall be 8000.​

A.34.2.4.5 Waveform Sample Interpretation​

The value of Waveform Sample Interpretation (5400,1006) in the Waveform Sequence (5400,0100) Item shall be UB, MB, or AB.​

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A.34.3 12-Lead ECG IOD​

A.34.3.1 12-Lead ECG IOD Description​

The 12-Lead ECG IOD is the specification of digitized electrical signals from the patient cardiac conduction system collected on the​ body surface, which has been acquired by an ECG modality or by an ECG acquisition function within an imaging modality.​

A.34.3.2 12-Lead ECG IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Waveform IE below the Series IE.​

A.34.3.3 12-Lead ECG IOD Module Table​

Table A.34.3-1 specifies the Modules of the 12-Lead ECG IOD.​

Table A.34.3-1. 12-Lead ECG IOD Modules​

A.34.3.4 12-Lead ECG IOD Content Constraints​

A.34.3.4.1 Modality​

The value of Modality (0008,0060) shall be ECG.​

A.34.3.4.2 Acquisition Context Module​

For SOP Instances of ECG acquired in the cardiac catheterization lab, the Defined TID for Acquisition Context Sequence (0040,0555)​ isTID3403“CatheterizationAcquisitionContext”.ForroutinerestingorstressECG,theDefinedTIDforAcquisitionContextSequence​ (0040,0555) is TID 3401 “ECG Acquisition Context”.​

A.34.3.4.3 Waveform Sequence​

The number of Waveform Sequence (5400,0100) Items shall be between 1 and 5, inclusive.​

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A.34.3.4.4 Number of Waveform Channels​

The value of Number of Waveform Channels (003A,0005) in each Waveform Sequence (5400,0100) Item shall be between 1 and​ 13, inclusive. The total number of channels encoded across all Items shall not exceed 13.​

Note​

This specialization provides for up to five Waveform Sequence (5400,0100) Items (multiplex groups), with a total of 13​ channels.Thisallows,forinstance,encodingoffoursetsofthreesimultaneouslyrecordedchannels,thesetsbeingacquired​ sequentially, plus one continuous channel for the duration of the other sets. This can be used to emulate the behavior of​ classical 12-lead ECG strip chart recorders with 4x3 presentation, plus a continuous lead II recording (see Figure A.34.3-1).​

Figure A.34.3-1. 12-Lead ECG Example (Informative)​

A.34.3.4.5 Number of Waveform Samples​

The value of Number of Waveform Samples (003A,0010) in each Waveform Sequence (5400,0100) Item shall be less than or equal​ to 16384.​

Note​

This allows over 16 seconds per channel at the maximum sampling frequency; if longer recordings are required, the General​ ECG IOD may be used.​

A.34.3.4.6 Sampling Frequency​

The value of Sampling Frequency (003A,001A) in each Waveform Sequence (5400,0100) Item shall be between 200 and 1000, in-​ clusive.​

A.34.3.4.7 Channel Source​

The Baseline CID for the Channel Source Sequence (003A,0208) in each Channel Definition Sequence (003A,0200) Item shall be​ CID 3001 “ECG Leads”.​

A.34.3.4.8 Waveform Sample Interpretation​

The value of Waveform Sample Interpretation (5400,1006) in each Waveform Sequence (5400,0100) Item shall be SS.​

A.34.3.4.9 Waveform Annotation Module​

The Defined CID for the Concept Name Code Sequence (0040,A043) in the Waveform Annotation Sequence (0040,B020) shall be​ CID 3335 “ECG Annotations”. This Context Group supports the annotation of suppressed pacemaker spikes in the ECG waveform.​

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A.34.4 General ECG IOD​

A.34.4.1 General ECG IOD Description​

The General ECG IOD is the specification of digitized electrical signals from the patient cardiac conduction system collected on the​ body surface, which has been acquired by an ECG modality or by an ECG acquisition function within an imaging modality.​

A.34.4.2 General ECG IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Waveform IE below the Series IE.​

A.34.4.3 General ECG IOD Module Table​

Table A.34.4-1 specifies the Modules of the General ECG IOD.​

Table A.34.4-1. General ECG IOD Modules​

A.34.4.4 General ECG IOD Content Constraints​

A.34.4.4.1 Modality​

The value of Modality (0008,0060) shall be ECG.​

A.34.4.4.2 Waveform Sequence​

The number of Waveform Sequence (5400,0100) Items shall be between 1 and 4, inclusive.​

A.34.4.4.3 Number of Waveform Channels​

The value of Number of Waveform Channels (003A,0005) in each Waveform Sequence (5400,0100) Item shall be between 1 and​ 24, inclusive.​

A.34.4.4.4 Sampling Frequency​

The value of Sampling Frequency (003A,001A) in each Waveform Sequence (5400,0100) Item shall be between 200 and 1000, in-​ clusive.​

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A.34.4.4.5 Channel Source​

The Defined CID for the Channel Source Sequence (003A,0208) in each Channel Definition Sequence (003A,0200) Item shall be​ CID 3001 “ECG Leads”.​

Note​

Terms from other Context Groups may also be used for extended specification of the Channel Source, as declared in the​ Conformance Statement for an application (see PS3.2).​

A.34.4.4.6 Waveform Sample Interpretation​

The value of Waveform Sample Interpretation (5400,1006) in each Waveform Sequence (5400,0100) Item shall be SS.​

A.34.4.4.7 Waveform Annotation Module​

The Defined CID for the Concept Name Code Sequence (0040,A043) in the Waveform Annotation Sequence (0040,B020) shall be​ CID 3335 “ECG Annotations”. This Context Group supports the annotation of suppressed pacemaker spikes in the ECG waveform.​

A.34.5 Ambulatory ECG IOD​

A.34.5.1 Ambulatory ECG IOD Description​

The Ambulatory ECG IOD is the specification of digitized electrical signals from the patient cardiac conduction system collected on​ the body surface, which has been acquired by an ambulatory electrocardiography (Holter) device.​

Note​

The duration of acquisition represented in one SOP Instance is not specifically constrained, and is limited only by the max-​ imum size of the Waveform Data Attribute.​

A.34.5.2 Ambulatory ECG IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Waveform IE below the Series IE.​

A.34.5.3 Ambulatory ECG IOD Module Table​

Table A.34.5-1 specifies the Modules of the Ambulatory ECG IOD.​

Table A.34.5-1. Ambulatory ECG IOD Modules​

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