Jul 22, 2012 - 5:20 pm
Dual Post ... CyberKnife.com and CSN.cancer.org
My friend has just been diagnosed with intermediate low level PCa 3+4=7, 0.2 involvement, one of twelve cores positive,(confirmed by an expert second opinion), had a rising PSA, high PCA3, MRI with Tesla 3.0 shows various suspicious lesions, one at 2.0 CM. No extracapsular extension. MRI indicates a 104 enlarged prostate size while the biopsy comes out at 75. He has some trouble with urnination. Right now he is taking flowmax. He had a quad bypass surgery in the nineties, he has some heart irregularity. He will be 71 in October.
He is exploring surgery, cyberknife, and other radiation such as tomo therapy. Some radiation treatments such as bracky are not acceptable because of his large prostate size.
(As a man who is currently being treated with "Active Surveillance with Delayed Treatment" I am also very interested in reading of any inputs...........THANK YOU VERY MUCH)
Some questions now aboutCyberKnife Radiosurgery for Prostate Cancer:
What are the advantages and disadvantages of CyberKnife over Novalis, if any?
What are advantage and disadvantages of Novalis over CyberKnife, if any?
Bsically will Novalis do the same job as Cyberknife in delivering the the radiation.
What is an IRIS Variable Collimator? How is this used, what are the benefits?
What is a LINAC?
Please talk about a fused MRI in planning planning a CT scan., as opposed to a CT Scan only used at Stanford?
What generation CyberKnife and Novalis machines are most up to date? Are the above mentioned equipment automated in these late model machines.
How does his current urinary problems need to be treated if he selects CyberKnife.
Is a single modality of treatment appropriate, or would some kind of homone treatment appropriate.
What is the ideal total dose of Gy that needs to be delivered in 5 fractions, every other day.( I hope that I am using the right terminology). What are the effects on erectile function preservation rate(what are the rates?) Grade 3+ Late Urinary Toxicity; and Late Bowel Toxicity, and PSA Freedom from Relapse?
What margin is recommended for him, would close, I think 1mm be appropriate or is a wider one a better choice?
Not being a health care professional or very knowledgeable about cyberknife radiation delivery, I tried to think of everything important, however is there anything that you can think of that will be important for us to know?
Thank you very much.