There are two types of radiation. Photon and proton. Photon is more widely avaliable and somewhat less costly. Photon is generally stated as IMRT/IGRT. In your husband's case he had one positive margin, negative nodes and clear scans so it could be that his remaining PCa is in the prostate bed. In the case of a still localized disease IMRT is very effective. The course is 35 to 45 treatments and each one takes about 15 minutes. I would certainly look into this. Still a good chance to knock this out.
I am uncertain as to the application of proton radiation for salvage. Perhaps someone else can shed some light.
Best to you and hubby,
Diagnosed 04/10/08 Age 58 at the time
Gleason 4 + 3
DRE palpable tumor on left side
100% of 12 cores positive for PCa range 35% to 85%
Bone scan clear and chest x ray clear
CT scan shows potential lymph node involvement in pelvic region
Started Casodex on May 2 and stopped on June 1, 2008
Lupron injection on May 15 and every four months for next two years
Started IMRT/IGRT on July 10, 2008. 45 treatments scheduled
First 25 to be full pelvic for a total dose of 45 Gray to lymph nodes.
Last 20 to prostate only. Total dose to prostate 81 Gray.
Completed IMRT/IGRT 09/11/08.
PSA 02/08 21.5 at diagnosis
PSA 07/08 .82 after 8 wks of hormones
PSA 10/08 .642 one month after completion of IMRT, 6 months hormone
PSA 03/09 .38 six months post radiation and nine months into hormones
PSA 06/09 .36 or .30 depending on who did the test
PSA 09/09 .33 one year after IMRT and 16 months into hormone