DICOM PS3.3 2024a - Information Object Definitions

C.8.34.3 Photoacoustic Transducer Module

This section describes the Photoacoustic Transducer Module. This module contains Attributes that are specific to Photoacoustic Transducers.

Table C.8.34.3-1 contains IOD Attributes that describe Photoacoustic Transducers.

Table C.8.34.3-1. Photoacoustic Transducer Module Attributes

Attribute Name

Tag

Type

Attribute Description

Transducer Geometry Code Sequence

(0018,980D)

1

Geometric structure of the transducer.

Only a single Item shall be included in this Sequence.

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

DCID 12033 “Ultrasound Transducer Geometry”

Transducer Response Sequence

(0018,982C)

2

Characterization of the frequency response of the transducer.

Zero or one Item shall be included in this Sequence.

>Center Frequency

(0018,982D)

3

Center Frequency of a receiver in MHz.

>Fractional Bandwidth

(0018,982E)

3

Fractional Bandwidth of a receiver in percent as measured in Transmit/Receive mode.

>Lower Cutoff Frequency

(0018,982F)

3

Low end of the detectable frequency band of a receiver in MHz. This is the lowest frequency where the received signal amplitude is still within -6dB from the peak amplitude.

>Upper Cutoff Frequency

(0018,9830)

3

High end of the detectable frequency band of a receiver in MHz. This is the highest frequency where the received signal amplitude is still within -6dB from the peak amplitude.

Transducer Technology Sequence

(0018,9831)

3

The type of technology the transducer is based on.

Only a single Item is permitted in this Sequence.

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

DCID 11003 “Ultrasound Transducer Technology”


DICOM PS3.3 2024a - Information Object Definitions