Why you should get good MRI scans.
August 31st, 2007 by Yvonne
I found a message written by someone from St. Anthony Hospital. Have a look.
THere is no reason to think CK will be less effective than GK, and the data to date shows the same 95-98% control rates. He is wrong about the accuracy. GammaKnife has a mechanical accuracy of 0.3 mm. But that does not take into account the inaccuracies of MRI versus CT, the inaccuracy induced by the head positioning system, and the inaccuracy induced by frame torsion. The problem gets even worse with mechanically set head positioning. THe OVERALL accuracy of the CK is variously reported as 0.5-0.89 mm, with most showing closer to the 0.5 mm for intracranial targets. OVERALL accuracy of the GK is 1-2 mm, depending on a number of factors.
Our radiosurgery group has experience with hundreds of AN’s treated for 10 years on GK and for 4 years on CK. WE exclusively use the CK now.
Your choice, but I personally would go with CK. Either one is highly likely to control your tumor
Clinton A. Medbery, III, M.D.
St. Anthony Hospital Cyberknife Center
(405) 272-7311
buddy@swrads.org or cmedbery@coxinet.net
Clinton A. Medbery, III, M.D.
Southwest Radiation Oncology
1011 N. Dewey Ave.
Oklahoma City, OK 73102
GK means Gamma Knife and CK means Cyberknife.
This patient’s query is regarding the Acoustic Neuroma without prior history of Neurofibromatosis.
See, good MRI scans are also very important. Or x-ray beams during radiasurgery will hit the wrong places!
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