Hi Browntrout. The answer is yes; I recently had an MRI. This is from the CPC's website:
Can a patient have an MRI or CT Scan if the patient has had a seed implant?
Yes, the seeds are titanium, similar to other pins or clips used in medical procedures. There are no contraindications to MRI or other scans.
Here is a link to their "FAQ's" page that you may find of interest as well as you continue on your journey:
http://www.prostateimplant.com/faqs.html#top
Best to you.