Sound Speed Correction Mechanism Code Sequence

(0018,9832)

1

Mechanism used to correct for the speed of sound during image reconstruction due to differences in tissue composition.

Only a single Item shall be included in this Sequence.

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

DCID 11004 “Speed of Sound Correction Mechanisms”

>Object Sound Speed

(0018,9833)

1C

Speed of sound value in m/s used in the image reconstruction in the area attributed to the imaged object.

Required if Sound Speed Correction Mechanism (0018,9832) is (130818, DCM, "Uniform Speed of Sound Correction") or (130819, DCM, "Dual Speed of Sound Correction").

>Acoustic Coupling Medium Sound Speed

(0018,9834)

1C

Speed of sound value in m/s used in the image reconstruction in the area attributed to the acoustic coupling medium.

Required if Sound Speed Correction Mechanism (0018,9832) is (130819, DCM, "Dual Speed of Sound Correction").

>Referenced Image Sequence

(0008,1140)

1C

A Parametric Map (see A.75) image which provides the speed of sound correction in m/s applied during the Photoacoustic image reconstruction on a per-pixel basis.

The content of the Quantity Definition Sequence (0040,9220) in the referenced Parametric Map shall be (246205007, SCT, "Quantity") = (110832, DCM, "Speed of sound").

Only a single Item shall be included in this Sequence.

Required if Sound Speed Correction Mechanism (0018,9832) is (130820, DCM, "Speed of Sound Map Correction"). May be present otherwise.

>>Include Table 10-3 “Image SOP Instance Reference Macro Attributes”