MRI Information

Will the Implants Interfere with Having an MRI?

Non-clinical testing has demonstrated that the UroLift Implant is MR Conditional. A patient with this device can be safely scanned in an MR system immediately after placement meeting the following conditions:

• Static magnetic field of 3.0 Tesla or less
• Maximum spatial field gradient of 1,500 Gauss/cm (15 T/m) (extrapolated)
• Maximum MR system reported, whole body averaged specific absorption rate (SAR) of 4 W/kg for 15 minutes of continuous scanning (i.e., per pulse sequence) (First Level Controlled Operating Mode)

Under the scan conditions defined above, the UroLift Implant is expected to produce a maximum temperature rise of 2.4°C after 15 minutes of continuous scanning (i.e., per pulse sequence)

In non-clinical testing, the image artifact caused by the device extends approximately 15 mm from the UroLift Implant when imaged with a gradient echo pulse sequence and a 3.0 Tesla MRI system.

The safety of the delivery system has not been evaluated in the MR environment, and therefore, the delivery system should not be used within the MR environment.