![]() In both ICD and CRT MRI systems, the device automatically programs the MRI SureScan mode to Off, 6 hours after it was programmed to On. This 6-hour timeout period is provided to protect ICD patients from prolonged exposure to spontaneous tachyarrhythmia, and to minimize the amount of time that CRT patients do not receive CRT support. On the ICD programming screens above, and the CRT programming screen below, notice the Timeout indicator towards the top of the MRI SureScan page. ICD: MRI SureScan mode 2090 Programmer screenĬareLink SmartSync™ Device Manager for Cobalt™ and Crome™ ICDs Note: Azure also have the 24 hour MRI SureScan Timeout feature, similar to Micra TPS Transvenous pacemaker systems: MRI SureScan 2090 Programmer screen However, once MR scanning is complete and the patient is in a safe area away from the magnet, interrogate the device and turn MRI SureScan mode to Off, to restore permanent settings. The SureScan Timeout period of 24 hours ensures that the device will not remain in SureScan mode for an overly long period of time after the scan. The device automatically programs the MRI SureScan mode to Off after the indicated time (24 hours). On the Micra programming screen above, notice the Timeout indicator towards the top of the MRI SureScan page. Micra TPS: MRI SureScan mode programming screen For patients who do not require pacing support, program the device to the non-pacing mode (ODO for DR devices and OVO for SR devices) and a pacing rate is not required. A pacing rate must be selected for these pacing modes to avoid competitive pacing during the operation of MRI SureScan mode. For patients who require pacing support, program the device to an asynchronous pacing mode (DOO, AOO, VOO for dual chamber (DR) devices and VOO for single chamber (SR) devices). Programming MRI SureScan mode to On, allows for programming of an appropriate MRI SureScan pacing mode and MRI SureScan pacing rate as shown below. Select OK at the bottom of the MRI SureScan Checklist and the MRI SureScan window appears. The MRI SureScan Checklist may be printed if desired. Select the check box in the upper-left corner if all items on the MRI SureScan Checklist are satisfied for the patient. Read the checklist carefully as it may vary depending upon the device. Under the MRI SureScan field, the MRI SureScan Checklist appears as shown on the screen below. ![]() Go to Params -> Pacing -> Additional Features.
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