Table C7.6.18-2 specifies the attributes of the Respiratory Synchronization Module.
Table C.7.6.18-2RESPIRATORY 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 (0018,9170 equals 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 C.22.214.171.124.17.1 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.|