Slashdot Mirror
Using Sound Waves For Outpatient Neurosurgery
eldavojohn writes "Got a piece of malfunctioning brain tissue in your head? Want to avoid messy lobotomies and skull saws? Well, you're in luck; a study shows that acoustic waves can do the trick and will hopefully treat patients with disorders like Parkinson's disease. A specialist said, 'The groundbreaking finding here is that you can make lesions deep in the brain — through the intact skull and skin — with extreme precision and accuracy and safety.' They focus beams on the part of the brain needing treatment and it absorbs the energy, which turns to heat. The temperature hits about 130 F, and they can burn 10 cubic millimeters at a time. Using an MRI to see areas of heat, they can watch the whole time and target only what needs to be burned. The study consisted of nine subjects suffering from chronic pain that did not subside with medication (normally they need to go in and destroy a small part of the thalamus on these patients). After the outpatient procedure, all nine reported immediate pain relief and none experienced neurological problems or other side effects after surgery."
Could this be used on other parts of the body for cancer and such? Since the brain does not feel pain, you would have to use some kind anesthetic on other parts of the body.
I'm curious to know how they control the heat disippation. In fact, there are probably other invasive procedures involving burning away tissue with lasers as well, where I wonder how they protect surrounding tissue from the heat. It seems that in the brain in particular, some tissue would be susceptible to damage by high temperatures, even if that temp doesn't actually burn anything away.
Any ideas, Dr. Slashdot?
Would be nice if they could use this to destroy the two pinpoint spots of brain damage my girlfriend has that cause her epilepsy. She's afraid of surgery (doesn't want her skull opened up, and who can really blame her?) but she would be one to try something like this in a heartbeat.
Currently, all brain surgery consists of excising something, implanting something, or making a lesion in something. We do not have the ability to make a repair on anything in the brain. The best we can do is find the part that is malfunctioning and kill it off so it at least won't interfere with the rest.
What this does is avoid the whole drilling holes in the skull part and the infection risk that goes with it.
As someone who lives with chronic pain, let me say you are so far off the mark.
I do respond to medication, but the only pain-killers that work are very heavy - Fentanyl.
I haven't had a full time job for many years. I never will without advances in the treatment of pain. If a procedure like this may mean I can work again, and pay taxes. Then I can afford expensive medical insurance.
More importantly, my kids then have a Dad who works full-time. They see that working leads to reward. They see that working hard at school can lead to a better life. At the moment my 16 y.o. sees no point in trying, as life can throw a curve ball and fuck you over. So if I could get something closer to a "normal" life, my kids will see me modelling better work-ethics and will be more likely to emulate my success. They see there's a point to trying to achieve their level of personal excellence, earn more money, pay more taxes and have more productive and potentially happier lives.
That's 6 people now pay more taxes.
Now I'm a maths teacher by vocation. If I was able to teach full-time I would be able to show several hundred kids a year that maths is easy, maths is fun, and that they can use it to solve real problems in everyday life. A few of these kids will go on to do amazing things, just because I can do what I am good at doing, and I can do it well. Over say 20 years there would be a significant number of people who have happier lives, earn more money and pay more taxes.
That's say 300 people now pay more taxes.
It's been shown in the literature that children of professionals are significantly more likely to undergo tertiary study and become professionals. So the children of the kids that were inspired to greatness by having a great teacher are more likely to have happier, more productive lives with higher paying jobs.
So there are potentially thousands of people who are paying more taxes, who are making great discoveries, and are generally happier, just because my pain is better managed without putting knives inside my head.
Look past the short-term benefits to the individual, and look at the potential returns to society and humanity as a whole, and the pay-off of a (admittedly) expensive procedure becomes enormous. And the return to the individual who suffers otherwise incurable chronic pain is not something measured in $$. To not wake up crying because I didn't die in my sleep would bloody marvellous. It's the possibility that there will be advances that help me that has kept me from suicide, and I'm not Robinson Crusoe.