varian rapidarc, trilogy and truebaem

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mr bill
Veteran Member


Date Joined Sep 2010
Total Posts : 688
   Posted 11/8/2010 6:52 AM (GMT -6)   
Looking for some previous experience with Varian RT.  Does anyone know which one of the Varian process is best for PC?  I am trying to locate a treatment center, but Varian does not seem to want to answer my questions over the net. 
 
They do offer rapidarc, trilogy and truebaem therapy. Just wonder if anyone else has had experience with them?
Age 66
BPH since 1996. at least three negative biopsies Erie. Uro did not prescribe finasteride
2007 acute urine retention photoselective vaporize Clev. Clinic
8-9-10 PSA rose to 10.14 with finasteride positive biopsy Cleveland gleason 9, cat & bone scan negative
9-8-10 Robotic prostatectomy at Cleveland. Biopsy 9 nodes, 2 positive,seminal & vas deferens
PSA 3 wk .06, 6 wk <.03

don826
Veteran Member


Date Joined May 2008
Total Posts : 1010
   Posted 11/8/2010 7:20 AM (GMT -6)   
Hi Mr. Bill,
 
I was treated with the Varian technology in 2008. Trilogy is the same as what was used on me but Trilogy is set up to treat brain, lung, and other cancers in addition to the prostate. The medical group that I used treated only prostate cancer.  Rapidarc is a recent improvement. Basically the technology I used made a 360 degree rotation but it stopped at seven stations along the way to deliver the dose each time. WIth Rapidarc it is one continuous movement with the collimeters adjusting continuously to shape the dose. Primary advantage is time if you are the patient and revenue if you are the medical facility.
 
Varian's website lists all of the facilities that own their technology by city and state. After that I would suggest calling the site that has the machine and they will answer any questions you have.
 
Good luck,
Don
 
Diagnosed 04/10/08 Age 58
Gleason 4 + 3
DRE palpable tumor on left side
100% of 12 cores positive for PCa range 35% to 85%
Bone scan and chest x ray clear
CT scan shows potential lymph node involvement in pelvic region
IGRT/IMRT with adjuvant HT (lupron) 2yrs
PSA:
02/08 21.5
07/08 0.82
10/08 .642
09/09 0.32
03/10 0.32
06/10 0.32
07/10 0.10

mr bill
Veteran Member


Date Joined Sep 2010
Total Posts : 688
   Posted 11/8/2010 8:36 AM (GMT -6)   
Hi Don,
Thank you for the reply. From what I read, both from you and other information, the trilogy is the newest technology.  If I understand it correctly the trilogy is a real time cat scan that guides the RT. In other words the scanner is working in conjunction with the therapy.   Is that how you understand it?
 
Thank you,
Bill

don826
Veteran Member


Date Joined May 2008
Total Posts : 1010
   Posted 11/8/2010 11:51 AM (GMT -6)   
My treatment included the IGRT (image guided radio therapy) and the IMRT (intensity modulated radio therapy) and the machine was simply Varian. When I asked if this was the Trilogy I was told "no" that the Trilogy was aimed at treating all cancers and was not necessary for the prostate and the machine for my treatment was identical in all other aspects.
 
I underwent 45 sessions. Preparation included placement of three gold seeds known as fiduciaries. These are used to map and guide the radiation beam. After the seeds are placed I had a CT scan that located the seeds and this was used to plan the treatment. This was about one week prior to start of the treatment.
 
I also received tattoos on either hip and stomach areas. Just tiny black dots that are barely visible and only then if you know where to look. The tattoos were used to align the table and beam prior to commencing the treatment session. I also was fitted with a wire mesh mold that kept me in the same position for each treatment. Prior to the start of the radiation the machine would make an orbit and align the table and the beam. If something changed during the treatment I would feel a minor adjustment in the table. Only happened once. After the machine was satisfied with my location and had a fix on it the radiation dosing would begin. At each of seven stations the head would stop and fire the radiation. I could hear the collimeters reposition each time prior to the buzz of the radiation. Pretty cool technology.  Only took about twenty minutes from start to finish.
 
I suffered only brief diarrhea and urinary discomfort from the treatment. Both cleared up within days of the final treatment. I also had some minor skin irritation and lost all pubic hair. Hair has come back. I do have erections but not anything to brag about. I do not have a partner so I have not tried the ED drugs. In general I am satisfied with the treatment.
 
Best to you,
Don

compiler
Veteran Member


Date Joined Nov 2009
Total Posts : 7205
   Posted 11/8/2010 12:34 PM (GMT -6)   
My understanding is that there is the Varion Trilogy machine that uses the RapidArc technology. Supposedly does better on side effects.
 
Mel
PSA-- 3/08--2.90; 8/09--4.01; 11/09--4.19 (PSAf: 24%), PCA3 =75 .
Biopsy 11/30/09. Gleason 4+3. Stage: T1C. Current Age: 64
Surgery: Dr. Menon @Ford Hospital, 1/26/10.
Pathology Report: G 4+3. Nodes: Clear. PNI: yes. SVI: No. EPE: yes. Pos. Margin: Yes-- focal-- 1 spot .5mm. 100% continent by 3/10. ED- in progress. First post-op PSA on 3/10/10-: 0.01. PSA on 6/21/10--0.02. 9/21/10--0.06
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