soccertese
this sounds like a good compromise. Am I missing anything?
Benefits of ExAblate Treatment for Parkinson's Disease
1. Focused Ultrasound treatment is non-invasive just like radio-surgery, however it therapeutic effects are immediate and it does not use ionizing radiation and thereby does not have the adverse effect and limitation associated with it.
2. Compared to radio-frequency ablation, focused ultrasound is non-invasive and therefore has significant reduced risk for infection. Also as focused ultrasound is done under closed loop thermal feedback, it is more likely to damage only targeted tissue and spare non-targeted healthy brain.
3. Compared to implantation of deep brain stimulation device, focused ultrasound is a onetime procedure, and does not require subsequent procedure to replace batteries. Focused Ultrasound also does not involve implantation of a foreign body, and thereby carries a reduced risk of blood clots creation.
4. Since there is no need to insert electrodes or needles the collateral damage to the brain is reduced
source:
http://www.insightec.com/Parkinson_Disease.html