Rocker Tool not functioning correctly.

Rocker Tool not functioning correctly. BPM's decrease after download when using Rocker Tool. See Long Description Have found recently while using 12.0 s/w that the Rocker Tool doesn't appear to be functioning correctly. When I use my usual technique that generally produces 13-15 BPM, it comes up first at a rate of 22-26 BPM. Not until I download the scan, does the BPM drop down into the 15 BPM range. The issue is that the respiratory BPM changes when I download the prescription. The prescription is a resp-gated FSE scan with the resp trigger set at 40%. It turns out the trigger level of 40% is what is causing the resp BPM rate changes. The waveform looks very regular, the period never changes. Before the download, I was seeing a lot of double triggers, one right after the other. These were raising the BPM rate. When the level went to 40% I didn't see any double triggers. I think there were still some occasionally because we saw the BPM spike on some triggers. They weren't noticeable on the display though. MRIhc00522