DICOM Tables


NM MULTI-GATED ACQUISITION MODULE ATTRIBUTES

Tag
Tag Name
Requirement
Description
(0018,1080) Beat Rejection Flag
3
Heart beat duration sorting has been applied. Enumerated Values: Y = yes N = no
(0018,1085) PVC Rejection
3
Description of type of arrhythmic beat rejection criteria used.
(0018,1086) Skip Beats
3
Number of beats skipped after a detected arrhythmia
(0018,1088) Heart Rate
3
Average number of heart beats per minute for the collection period for these frames. This shall include all accepted beats as well as rejected beats.
(0054,0062) Gated Information Sequence
2C
Sequence of Repeating Items that describe R-R intervals. Each gated interval is defined by an upper and lower range of heart beat durations. Required if the Frame Increment Pointer (0028,0009) contains the Tag for R-R Interval Vector (0054,0060). The number of items shall be equal to Number of R-R Intervals (0054,0061). The first item corresponds to frames with value of 1 in the R-R Interval Vector (0054,0060), the second item with value 2, etc.
(0018,1060) >Trigger Time
3
Time interval measured in msec from the start of the R-wave to the beginning of the data taking.
(0018,1064) >Framing Type
3
Description of type of framing performed such as forward, backward, forward/backward by percentage.
(0054,0063) >Data Information Sequence
2C
Sequence of Repeating Items that describe gating criteria. See C.8.4.13.1.1. Required if a sequence Item is present.
(0018,1063) >>Frame Time
1C
Nominal time per individual frame in msec. Required if a sequence Item is present.
(0018,1062) >>Nominal Interval
3
Average duration of accepted beats, in msec.
(0018,1081) >>Low R-R Value
3
R-R interval lower limit for beat rejection, in msec
(0018,1082) >>High R-R Value
3
R-R interval upper limit for beat rejection, in msec
(0018,1083) >>Intervals Acquired
3
Number of heartbeats that fall within Low R-R Value (0018,1081) and High R-R Value (0018,1082), and were therefore accepted and contribute gamma events to this R-R Interval.
(0018,1084) >>Intervals Rejected
3
Number of heartbeats that fall outside Low R-R (0018,1081) and High R-R Value (0018,1082), and do not contribute gamma events to this R-R Interval. However, they may contribute gamma events to other R-R Intervals.
(0054,0072) >>Time Slot Information Sequence
2C
Sequence of Repeating Items that describe Time Slot Information. Required if the Frame Increment Pointer (0028,0009) contains the Tag for Time Slot Vector (0054,0070). The number of items shall be equal to Number of Time Slots (0054,0071). The first item corresponds to frames with value of 1 in the Time Slot Vector (0054,0070), the second item with value 2, etc.
(0054,0073) >>>Time Slot Time
3
The total amount of time, in msec, that the acquisition accumulates gamma events into this frame. See C.8.4.13.1.2.