Mon, May 23, 2011 - Page 11 News List

Game-winning computer turns sights to medicine


Some fellow in his pajamas, home sick with bronchitis and complaining online about it, could soon be contributing to a digital collection of medical information designed to help speed diagnoses and treatments.

A doctor who is helping to prepare IBM’s Watson computer system for work as a medical tool says such blog entries may be included in Watson’s database.

Watson is best known for handily defeating the world’s best Jeopardy players on the TV quiz show earlier this year. IBM says Watson, with its ability to understand plain language, can digest questions about a person’s symptoms and medical history and quickly suggest diagnoses and treatments.

The company is still perhaps two years from marketing a medical Watson, and it says no prices have been established. However, it envisions several uses, including a doctor simply speaking into a handheld device to get answers at a patient’s bedside.

Watson won’t be the first such product on the medical market, however, and one rival company says it isn’t impressed.

At a recent demonstration, Watson was gradually given information about a fictional patient with an eye problem. As more clues were unveiled — blurred vision, family history of arthritis, Connecticut residence — Watson’s suggested diagnoses evolved from uveitis to Behcet’s disease to Lyme disease. It gave the final diagnosis a 73 percent confidence rating.

“You do get eye problems in Lyme disease, but it’s not common,” Columbia University medical school professor Herbert Chase said. “You can’t fool Watson.”

For Jeopardy Watson was fed encyclopedias, dictionaries, books, news and movie scripts. For health care, it’s on a diet of medical textbooks and journals. It could also link to the electronic health records that the federal government wants hospitals to maintain. Medical students are peppering it with sample questions to help train it.

Chase said anecdotal information — such as personal blogs from medical Web sites — may also be included.

“What people say about their treatment ... it’s not to be ignored just because it’s anecdotal,” Chase said. “We certainly listen when our patients talk to us and that’s anecdotal.”

Chase and other experts say cramming Watson with the latest medical information would help with a major problem in modern health care: information overload.

“For at least 30 years it’s been clear that it’s not possible for us to know everything,” he said. “Every day, doctors have questions they can’t find the answers to. Even if you sit down at a search engine, it’s so labor intensive and it takes so long to find answers.”

Carl Kesselman, director of the Health Informatics Center at the University of Southern California, said the “deluge of information” is a significant problem.

“Advances in medicine are increasing rapidly: genomics, specialized drugs, off-label uses, increasingly finer-grained classifications of disease,” said Kesselman, who is not involved with the Watson project. “The ability to ask Jeopardy-style questions and get that kind of information retrieval, to sort through all the stuff out there and point you to the latest literature, would be of potentially huge value.”

Michael Yuan, chief scientist at Ringful Health, a medical consulting company in Austin, Texas, that has worked with IBM, cited a 1999 study of 103 doctors that found they fielded more than 1,100 questions a day, of which 64 percent were never answered.

This story has been viewed 2876 times.

Comments will be moderated. Remarks containing abusive and obscene language, personal attacks of any kind or promotion will be removed and the user banned.

TOP top