MR-Echo FIESTA Scans Intermittently Abort Midway Through an Acquisition.

MR-Echo FIESTA Scans Intermittently Abort Midway Through an Acquisition. Cardiac Waveform Disappears For About One Second See Long Description. While in MR ECHO running FIESTA scans, mid-way through an acquisition (after already acquiring 4 slices) the system will freeze and stop scanning. The cardiac waveform was disappearing from the screen for about 1 sec. The only way to continue the exam is to exit MR echo and then get back in, re-prescribe the entire series and continue...or give up and run the FIESTA sequences outside of MR Echo.This is intermittent. An error message is logged as follows: 2258024 "Invalid RR interval detected. Restart Scan." To summarize: WHEN IN MRECHO.... 1. You prescribe your FIESTA sequence. 2. Prep and scan sequence 3. Scan slice location(s) prescribed per breathhold....approx. 10 breathholds per sequence. 4. For example.....After only 4 breathholds or 4 out of 10 locations, the scanner will stop and the timer will return to '0'. When this happens, you have lost the remainder of your prescription. This forces you to go back to MRECHO and re-prescribe the sequence and start all over.This can happen more than once per patient. Overall it is very interrmittent. PQR 13091824 SPR MRIhc20628