Is MRI necessary to distinguish prostate from rectal spacer (SpaceOar) when planning for definitive prostate radiation therapy?

Yes. (Where once I was blind, now I can see .. yup .. it’s as black and White as that ..). That said, if Augmenix just added a touch of contrast material to the “space blob” kit, you’d have nice contrast on CT too ...

One easy solution to visualize SpaceOAR gel is to use 1cc of contrast to replace 1cc of saline in the Y-applicator prior to injection. You can visualize the contrast on CT for up to 24 hours. Its cost-effective and time effective.

This method has been working out really well on all cases thus far...

After having done my fare share of injections, I have found that adding iodine-based IV contrast into the gel mixture will provide excellent visualization of the gel on CT scan for a couple of days. Usually, I also place Calypso beacons at the same time. I typically obtain a CT-Sim right after the i...