Slashdot Mirror
A Breathalyzer For Cancer
Tiger4 writes "Cancer researchers in the UK have come up with a way to sniff for lung cancer on the breath. 'From the results, the researchers identified 42 "volatile organic compounds" (VOCs) present in the breath of 83% of cancer patients but fewer than 83% of healthy volunteers. Four of the most reliable were used to develop a nine-sensor array made from tiny gold particles coated with reactive chemicals sensitive to the compounds.' Other sources have picked up the story as well. Obviously, this would be a big breakthrough for rapid screening, and early detection significantly improves outcomes."
Non-oncs generally don't understand that a whole lot of cancer is "clinically irrelevant". That is, it would never go on to kill you. Thus, as early detection gets better in most areas, you detect a greater percentage of cancer that was never going to hurt the patient. However, once you see the cancer, you are duty-bound to slash/burn/poison (Susan Love's famous chapters) to cure it. Statistically speaking, you know you are actually harming some patients, but it is a dilemma -- you hurt all the patients in order to serve a greater good for some percentage of them. A good example is the growing backlash against general PSA screening. Even just a biopsy for prostate cancer can't be 100% risk-free, but the treatment is really risky, assuming you're not enthusiastic about being impotent and/or incontinent for the rest of your life.
So don't get too excited about increased early detection of cancer. Currently, it is usually a double-edged sword that brings suffering to some percentage of patients who would have avoided it before the new test existed. An exciting development would be a detection test for distinguishing cancer that's just sitting there from cancer that's on the move and likely to kill.
the scientific method that they must have employed
Quote from FA: "Moreover, in a break from the convention in medical innovation, the researchers claim that full clinical trials may not be necessary to take this new technology to a stage where it is hospital-ready. They believe instead that they could prove the device's accuracy using a series of "artificial mixtures" of particulates that could simulate cancerous and healthy breath. "
In short: We are only in it for the money.
CC.
TaijiQuan (Huang, 5 loosenings)
Makes me remember Bono's famous statement on stage -"Every time I clap my hands - a child dies". Followed by someone in the audience screaming -"Then stop clapping you sick f*ck!".
Break the sound barrier - bring the noise.
That cat is a genius - they still haven't found where he conceals the weapon.
I see. Cats found a way to measure when we certainly die, though we keep saying we can't (c.f. http://en.wikipedia.org/wiki/Schr%C3%B6dinger's_cat)..
If they weren't in it for the money. This would never have been made!
Since when did research/production/innovation with the goal of making money become a bad thing? It's like it's become a taboo.. making money, it's for the exchange of goods and services!
Pay them in jelly-beans! everyone loves jelly-beans! awww look! they're doing it for jellllyyy beeaaanns