DICOM PS3.3 2024b - Information Object Definitions

C.8.34.2 Photoacoustic Acquisition Parameters Module

This section describes Photoacoustic Imaging parameters that are constant for the acquisition of all frames in this image.

Table C.8.34.2-1. Photoacoustic Acquisition Parameters Module Attributes

Attribute Name

Tag

Type

Attribute Description

Excitation Wavelength Sequence

(0018,9825)

1

Optical excitation wavelength(s) applied to the target. Acquired data from all input wavelengths in this sequence is processed to create the image. The processing may be described in Reconstruction Algorithm Sequence (0018,993D).

One or more Items shall be included in this Sequence.

>Excitation Wavelength

(0018,9826)

1

The wavelength in nm of the optical excitation pulse from the illuminator.

Illumination Translation Flag

(0018,9828)

3

Whether the position of the illumination source is changed during the frame acquisition.

Enumerated Values:

YES

NO

Illumination Type Code Sequence

(0022,0016)

3

Type of illumination used.

Only a single Item is permitted in this Sequence.

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

DCID 11001 “Photoacoustic Illumination Method”

Acoustic Coupling Medium Flag

(0018,9829)

1

Whether an acoustic coupling medium was used. A value of NO indicates direct contact between the transducer and imaging subject.

Enumerated Values:

YES

NO

Acoustic Coupling Medium Code Sequence

(0018,982A)

2C

Acoustic coupling medium that was used.

Required if Acoustic Coupling Medium Flag (0018,9829) is YES.

Zero or one Item shall be included in this Sequence.

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

DCID 11002 “Acoustic Coupling Medium”

Acoustic Coupling Medium Temperature

(0018,982B)

3

The nominal temperature of the acoustic coupling medium in degrees Celsius at the time of acquisition.


DICOM PS3.3 2024b - Information Object Definitions