DICOM PS3.3 2025a - Information Object Definitions
C.39.6 Waveform Presentation Montage Module (Current)
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PS3.3 > Information Module Definitions (Normative) > Waveform Presentation State Modules > Waveform Presentation Montage Module

C.39.6 Waveform Presentation Montage Module

This Module contains Attributes describing presentation montages of waveform channels.

Table C.39.6-1.  Waveform Presentation Montage Module Attributes

Attribute Name

Tag

Type

Attribute Description

Waveform Montage Sequence

(0040,B039)

1

Description of the waveform montage(s) in the Waveform Presentation State.

One or more Items shall be included in this Sequence.

>Montage Name

(0040,B03B)

3

The name of the montage.

>Montage Index

(0040,B03D)

1

The index of the montage within this Sequence.

The value shall start at 1 and increase monotonically by 1.

This index will be used elsewhere to refer to this specific montage Sequence Item.

>Montage Channel Sequence

(0040,B03C)

1

The channel(s) that comprise this montage.

One or more Items shall be included in this Sequence.

The order of Items in this Sequence is significant.

>>Include Table C.39.7-1 “Montage Channel Macro Attributes”

>Waveform Data Display Scale

(003A,0230)

3

The recommended time-based waveform data display scale in units of mm/s (see Section C.10.9.1.8).

Note

Note: This does not prevent applications to change this during display. The value might be used as an initial default setting.

>Waveform Display BackgroundCIELabValue

(003A,0231)

3

A color triplet value recommended for rendering the waveform display background on a color display. The units are specified in

PCS-Values, and the value is encoded as CIELab. See Section C.10.7.1.1.

>Waveform Presentation Group Sequence

(003A,0240)

3

Sequence of Items, each Item describing a Presentation Group of one or more waveform channels to be displayed together.

Note

A Presentation Group is conventionally denoted a "display page", and a waveform object may be rendered using several Presentation Groups under user display control.

One or more Items are shall be included in this Sequence.

>>Presentation Group Number

(003A,0241)

1

A number that identifies the Presentation Group.

>>Channel Display Sequence

(003A,0242)

1

Sequence of Items, each Item describing a channel to be displayed in the Presentation Group.

One or more Items shall be included in this Sequence.

>>>Referenced Montage Channel Number

(0040,B03A)

1

Number of the montage channel to be displayed in the Presentation Group.

This is the ordinal number of the Item in the Montage Channel Sequence (0040,B03C).

>>>Channel Offset

(003A,0218)

3

The offset in seconds from the beginning of the montage channel waveform data to the first sample to be used for presentation. Value may be negative.

>>>Channel Recommended Display CIELab Value

(003A,0244)

1

A color triplet value recommended for rendering the channel on a color display. The units are specified in PCS-Values, and the

value is encoded as CIELab. See Section C.10.7.1.1.

>>>Channel Position

(003A,0245)

1

Position of the channel within the Presentation Group display area (see Section C.10.9.1.9).

>>>Display Shading Flag

(003A,0246)

3

Specifies display area shading between the displayed waveform channel and another line. The nature of the shading (e.g., solid, or cross-hatching) is implementation dependent.

Enumerated Values:

NONE

no shading

BASELINE

shading between the waveform and the channel display baseline (sample value 0 equivalent location)

ABSOLUTE

shading between the waveform and the channel real world actual value 0 (i.e., taking into account the Channel Baseline (003A,0213) value)

DIFFERENCE

shading between the waveform and a second waveform in the Presentation Group at the same channel position that also has Display Shading Flag (003A,0246) value DIFFERENCE

>>>Fractional Channel Display Scale

(003A,0247)

1C

Fraction of the Presentation Group vertical display dimension assigned to the unit quantity (least significant bit) of the channel samples (see Section C.10.9.1.10).

Required if Absolute Channel Display Scale (003A,0248) is not present, may be present otherwise.

>>>Absolute Channel Display Scale

(003A,0248)

1C

Nominal vertical display height in mm assigned to the unit quantity (least significant bit) of the channel samples (see Section C.10.9.1.10).

Required if Fractional Channel Display Scale (003A,0247) is not present, may be present otherwise.

C.39.7 Montage Channel Macro

This Macro consists of Attributes describing a single channel of a waveform montage.

Table C.39.7-1. Montage Channel Macro Attributes

Attribute Name

Tag

Type

Attribute Description

Montage Channel Number

(0040,B03E)

1

The number of the montage channel.

Montage Channel Label

(0040,B03F)

3

Text label of the channel, which may be used for display purposes.

Montage Channel Source Code Sequence

(0040,B040)

1

A coded descriptor of the waveform channel source. This identifies a single channel in the recorded waveform in terms of the lead from which it is collected.

Only a single Item shall be included in this Sequence.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 3001 “ECG Lead”.

DCID 3004 “Arterial Pulse Waveform”.

DCID 3005 “Respiration Waveform”.

DCID 3030 “EEG Lead”.

DCID 3031 “Lead Location Near or in Muscle”.

DCID 3032 “Lead Location Near Peripheral Nerve”.

DCID 3033 “EOG Lead”.

DCID 3034 “Body Position Channel”.

Source Waveform Sequence

(003A,020A)

1

A Sequence that provides reference to a waveform from which this channel was derived.

One or more Items shall be included in this Sequence.

If there are multiple Items in this Sequence, they shall share the same multiplex group identified by Multiplex Group UID (003A,0310).

>Include Table 10-11 “SOP Instance Reference Macro Attributes”

>Referenced Waveform Channels

(0040,A0B0)

1

Identifies the waveform multiplex group (M) and channel (C) within the referenced SOP Instance using a pair of values (M,C).

See Section C.10.10.1.1.

Only a single channel shall be referenced.

Channel Derivation Description

(003A,020C)

3

Additional description of the channel derivation.

Contributing Channel Sources Sequence

(0040,B041)

2

A Sequence of Items each representing the source of a channel contributing to this montage.

Zero or more Items shall be included in this Sequence.

>Channel Weight

(0040,B042)

1

The relative weight this channel contributes to the montage channel.

The weights of all Items in this Sequence shall sum up to 1.

>Channel Source Sequence

(003A,0208)

1

A coded descriptor of the contributing waveform channel source.

Only a single Item shall be included in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 3001 “ECG Lead”.

DCID 3004 “Arterial Pulse Waveform”.

DCID 3005 “Respiration Waveform”.

DCID 3030 “EEG Lead”.

DCID 3031 “Lead Location Near or in Muscle”.

DCID 3032 “Lead Location Near Peripheral Nerve”.

DCID 3033 “EOG Lead”.

DCID 3034 “Body Position Channel”.

>Source Waveform Sequence

(003A,020A)

1

Reference to waveforms from which this channel was derived.

One or more Items shall be included in this Sequence.

If there are multiple Items in this Sequence, they shall share the same multiplex group identified by Multiplex Group UID (003A,0310).

>>Include Table 10-11 “SOP Instance Reference Macro Attributes”

>>Referenced Waveform Channels

(0040,A0B0)

1

Identifies the waveform multiplex group (M) and channel (C) within the referenced SOP Instance using a pair of values (M,C). See Section C.10.10.1.1.

Only a single channel shall be referenced here.

Channel Sensitivity

(003A,0210)

1C

Nominal numeric value of unit quantity of sample. See Section C.10.9.1.4.2.

Required if samples represent defined (not arbitrary) units.

Channel Sensitivity Units Sequence

(003A,0211)

1C

A coded descriptor of the units of measure for the Channel Sensitivity (003A,0210). See Section C.10.9.1.4.2.

Only a single Item shall be included in this Sequence.

Required if Channel Sensitivity (003A,0210) is present.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 82 “Measurement Unit”.

Channel Sensitivity Correction Factor

(003A,0212)

1C

Multiplier to be applied to encoded sample values to match units specified in Channel Sensitivity Units Sequence (003A,0211) (e.g., based on calibration data). See Section C.10.9.1.4.2.

Required if Channel Sensitivity (003A,0210) is present.

Filter Low Frequency Characteristics Sequence

(003A,0318)

1C

The properties of low frequency (high-pass) filters applied to the waveform montage channel.

Required if a high-pass filter is used.

One or more Items shall be included in this Sequence.

>Include Table C.10.12-1 “Waveform Filter Characteristics Macro Attributes”

Filter High Frequency Characteristics Sequence

(003A,0319)

1C

The properties of high frequency (low-pass) filters applied to the waveform montage channel.

Required if a low-pass filter is used.

One or more Items shall be included in this Sequence.

>Include Table C.10.12-1 “Waveform Filter Characteristics Macro Attributes”

Notch Filter Characteristics Sequence

(003A,0321)

3

The properties of notch filters applied to the waveform montage channel.

One or more Items are permitted in this Sequence.

>Include Table C.10.12-1 “Waveform Filter Characteristics Macro Attributes”


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C.39.5 Montage Activation Module  Home  C.39.8 Temporal Range Macro
DICOM PS3.3 2025a - Information Object Definitions