Siemens SOMATOM SENSATION CARDIAC A60 - Manual (Page 28)

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HeartView CT
ECG Trace Editor
The ECG trace editor is used for adaptation of image
reconstruction to irregular heart rates. This editing
tool can be used after the scan is acquired. By using
the right mouse menu on the Trigger card you can use
several modification tools for the ECG Sync, such as
Delete, Disable, Insert. To reset the ECG curve select
the check box Original ECG.
ECG Pulsing
ECG Pulsing is a dedicated technique used for online
dose modulation for Cardiac imaging. The tube current
is ECG-controlled and reduced during systolic phases
of the cardiac cycle while maintained normal during
diastolic phases when best image quality is required.
As shown in figure 13, essential dose reduction up to
50 % can be achieved. It can be switched on/off by the
user (Fig. 14).
Fig. 13: Dose modulation with ECG pulsing.