DICOM PS3.3 2018e - Information Object Definitions
C.7.6.18.2 Respiratory Synchronization Module

Table C.7.6.18-2 specifies the Attributes of the Respiratory Synchronization Module.

Table C.7.6.18-2. Respiratory Synchronization Module Attributes

Attribute Name

Tag

Type

Attribute Description

Respiratory Motion Compensation Technique

(0018,9170)

1C

Applied technique to reduce respiratory motion artifacts.

Defined Terms:

NONE

BREATH_HOLD

REALTIME

Image acquisition shorter than respiratory cycle

GATING

Prospective gating

TRACKING

Prospective through-plane or in-plane motion tracking

PHASE_ORDERING

Prospective phase ordering

PHASE_RESCANNING

Prospective techniques, such as real-time averaging, diminishing variance and motion adaptive gating

RETROSPECTIVE

Retrospective gating

CORRECTION

Retrospective image correction

Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.

Respiratory Signal Source

(0018,9171)

1C

Signal source from which respiratory motion is derived.

Defined Terms:

NONE

BELT

includes various devices that detect or track expansion of the chest

NASAL_PROBE

CO2_SENSOR

NAVIGATOR

MR navigator and organ edge detection

MR_PHASE

phase (of center k-space line)

ECG

baseline demodulation of the ECG

Required if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED and Respiratory Motion Compensation Technique (0018,9170) equals other than NONE.

Otherwise may be present if Image Type (0008,0008) Value 1 is DERIVED and Respiratory Motion Compensation Technique (0018,9170equals other than NONE.

Respiratory Trigger Delay Threshold

(0020,9256)

1C

Respiratory trigger threshold in percent of the chest expansion for the frame relative to the last Respiratory-Peak. See Section C.7.6.16.2.17.1 for further explanation.

Required if Respiratory Motion Compensation Technique (0018,9170) equals other than NONE, REALTIME or BREATH_HOLD and if Image Type (0008,0008) Value 1 is ORIGINAL or MIXED. May be present otherwise.

Respiratory Trigger Type

(0020,9250)

1C

Characteristic of the respiratory signal used to the define the respiratory triggering.

Defined Terms:

TIME

AMPLITUDE

BOTH

Required if the value is not TIME, may be present otherwise.


DICOM PS3.3 2018e - Information Object Definitions