For what it's worth, most of the concern seems to be migration (movement of the stent) and temperature increase, and there's also a passive optical artifact int

For what it's worth, most of the concern seems to be migration (movement of the stent) and temperature increase, and there's also a passive optical artifact introduced by the stent in the image itself. The manufacturer docs are here: https://www.cardiovascular.abbott/int/en/hcp/products/percutaneous-coronary-intervention/xience-family/freqently-asked-questions.html https://www.cardiovascular.abbott/int/en/hcp/products/percut... Nonclinical testing has shown that the XIENCE Sierra™ Stent, in single and in overlapped configurations up to 71 mm in length, are MR conditional. A patient with this device can be scanned in an MR system under the following conditions:\* Static magnetic field of 1.5 or 3 Tesla Maximum spatial gradient field of 3000 Gauss/cm or less Maximum MR system reported whole-body-averaged specific absorption rate (SAR) of 2.0 W/kg (normal operating mode) Under the scan conditions defined above, XIENCE Sierra™ Stents are expected to produce a maximum temperature rise of of less than 4.5°C after 15 minutes of continuous scanning. The XIENCE Sierra™ Stent should not migrate in this MRI environment. MRI at 1.5 or 3 Tesla may be performed immediately post-implantation. In non-clinical testing, the image artifact caused by the device extends approximately 6 mm from the XIENCE Sierra™ Stent when imaged with a gradient echo or spin echo pulse sequence and a 3T MRI system. It may be necessary to optimize the MRI parameters to account for the presence of XIENCE Sierra™ Stents.