Walton said...
Still want to know more about how it compares to HD Brachy on effectiveness and SE's.
There's never been a randomized comparison. You can expect the SEs and effectiveness to be pretty much identical because SBRT planning is based on HDR brachy monotherapy. I've seen treatment plans for both and they are very similar. You can see the SBRT results in the link in my signature.
I think Dr. Mantz uses Tomotherapy to do SBRT, which should be amazingly precise. With Tomo, it tracks prostate movement continuously using the excess CT X-rays.
Walton said...
Is it the case with both SBRT and HD Brachy that if SV's or lymph nodes require treatment you need additional RT in a different form?
Seminal vesicles are easily included with both SBRT or HDR monotherapy. Seminal vesicles will be treated if your biopsy or imaging show a significant risk of SVI.
LNs are treated during the same 5 treatments for SBRT. However, LNs are out of the range where catheters can be inserted for HDR brachy monotherapy, so they would have to be treated with about
5 weeks of IMRT. LNs are only included if you are at high risk for LN invasion. That depends on your PSA and Gleason score.