DICOM PS3.17 2024c - Explanatory Information

AAAAA.3.2.3 Photoacoustic/Ultrasound Coupled Acquisition Per-Frame Example

In this encoding of the example shown in Figure AAAAA.3.2-1, the first frame of the image is shown for three images: one Photoacoustic image processed from one excitation wavelength, one Photoacoustic image processed from two excitation wavelengths, and one ultrasound image (Table AAAAA.3.2.3-1, Table AAAAA.3.2.3-2, Table AAAAA.3.2.3-3). For brevity, examples of other Photoacoustic attributes are provided in Section AAAAA.3.4.

Table AAAAA.3.2.3-1. Photoacoustic/Ultrasound Coupled Acquisition, Photoacoustic Image, Algorithm 1, Frame 1

Attribute

Tag

Value

Comments

Modality

(0008,0060)

PA

...

Excitation Wavelength Sequence

(0018,9825)

>Excitation Wavelength

(0018,9826)

800

nm

...

Shared Functional Groups Sequence

(5200,9229)

...

>Image Data Type Sequence

(0018,9807)

>>Image Data Type Code Sequence

(0018,9836)

>>>Code Value

(0008,0100)

110831

>>>Coding Scheme Designator

(0008,0102)

DCM

>>>Code Meaning

(0008,0104)

Perfusion

...

>Reconstruction Algorithm Sequence

(0018,993D)

>>Algorithm Name

(0066,0036)

wl-1

A manufacturer-specific algorithm for images as applied to the excitation wavelength 1.

...

Per-Frame Functional Groups Sequence

(5200,9230)

%item

...

>Frame Content Sequence

(0020,9111)

>>Frame Acquisition Date Time

(0018,9074)

20220130150251.005768

>>Dimension Index Value

(0020,9157)

1\1\1

...

>Plane Position (Volume) Sequence

(0020,930E)

>>Image Position (Volume)

(0020,9301)

0\0\0

...

>Temporal Position Sequence

(0020,9310)

>>Temporal Position Time Offset

(0020,930D)

0

...


Table AAAAA.3.2.3-2. Photoacoustic/Ultrasound Coupled Acquisition, Photoacoustic Image, Algorithm 2, Frame 1

Attribute

Tag

Value

Comments

Modality

(0008,0060)

PA

...

Excitation Wavelength Sequence

(0018,9825)

%item

>Excitation Wavelength

(0018,9826)

800

nm

%enditem

%item

>Excitation Wavelength

(0018,9826)

1064

nm

%enditem

...

Shared Functional Groups Sequence

(5200,9229)

...

>Image Data Type Sequence

(0018,9807)

>>Image Data Type Code Sequence

(0018,9836)

>>>Code Value

(0008,0100)

110819

>>>Coding Scheme Designator

(0008,0102)

DCM

>>>Code Meaning

(0008,0104)

Blood Oxygenation Level

Although imaging based on a single wavelength was used to represent Blood Oxygenation Level in Example 1, in this example, images from two wavelengths are used to compute a relative oxygenation image.

...

Reconstruction Algorithm Sequence

(0018,993D)

>Algorithm Name

(0066,0036)

RelativeOxygenation-800-1064

The manufacturer-specific spectrally unmixed algorithm for relative oxygenation using excitation wavelengths of 800nm and 1064nm.

...

Per-Frame Functional Groups Sequence

(5200,9230)

%item

...

>Frame Content Sequence

(0020,9111)

>>Frame Acquisition Date Time

(0018,9074)

20220130150251.005770

>>Dimension Index Value

(0020,9157)

1\1\2

...

>Plane Position (Volume) Sequence

(0020,930E)

>>Image Position (Volume)

(0020,9301)

0\0\0

...

>Temporal Position Sequence

(0020,9310)

>>Temporal Position Time Offset

(0020,930D)

0

...


Table AAAAA.3.2.3-3. Photoacoustic/Ultrasound Coupled Acquisition, Ultrasound Image, Frame 1

Attribute

Tag

Value

Comments

Modality

(0008,0060)

US

...

Per-Frame Functional Groups Sequence

(5200,9230)

%item

...

>Frame Content Sequence

(0020,9111)

>>Frame Acquisition Date Time

(0018,9074)

20220130150251.005771

>>Dimension Index Value

(0020,9157)

1\1\1

...

>Plane Position (Volume) Sequence

(0020,930E)

>>Image Position (Volume)

(0020,9301)

0\0\0

...

>Temporal Position Sequence

(0020,9310)

>>Temporal Position Time Offset

(0020,930D)

0

...

>Image Data Type Sequence

(0018,9807)

>>Data Type

(0018,9808)

TISSUE_INTENSITY

...


DICOM PS3.17 2024c - Explanatory Information