Google gives better diagnosis than your GP
IT may prove to be a better diagnostic tool than the stethoscope or the thermometer. Next time your doctor appears baffled when you're under the weather you could try suggesting he "Google for a diagnosis".
Researchers found that a simple Google search can crack the hardest diagnostic problems which foil even the best medical specialists.
Modern medicine is so complex that the average doctor, estimated to carry around two million medical facts in his head, does not have a big enough brain to be capable of identifying every ailment presented to the surgery or clinic.
But Google gives access to more than three billion medical articles on the web and may be the most powerful diagnostic aid available to doctors.
To test the value of it as a clinical tool, boffins in Brisbane University, Australia, selected 26 of the hardest cases and found the search engine got the correct diagnosis in more than half (58pc) - with just a few strokes of the keyboard.
Google rightly identified conditions ranging from the degenerative brain disorder Creutzfeldt-Jakob Disease (CJD) to Cat Scratch disease, an infection causing swelling of the lymph nodes after an animal scrape.
In the online version of the British Medical Journal the study team states: "The role of diagnostician remains one of the most challenging and fulfilling roles of a physician . . . Search engines allow quick access to an ever increasing knowledge base . . . Our study suggests that in difficult diagnostic cases, it is often useful to 'Google for a diagnosis.' . . . Doctors in training need to become proficient in [its] use."
The cases were taken from the New England Journal of Medicine which tests the diagnostic skills of its readers each week by asking them to judge what is wrong with a patient whose brief medical history and symptoms are given.
The researchers, who didn't know the correct diagnosis, entered between three and five search terms and selected the three most prominent results which Google threw up that seemed to fit the signs and symptoms.
In some cases they rejected the search engine's diagnosis as not being accurate. For example, it correctly identified extrinsic allergic alveolitis in a patient with breathing problems but did not specify it was 'hot tub lung' caused by Mycobacterium Avium, a bug that thrives in hot tubs, which are becoming more popular.
The authors acknowledge that they are not the first to discover the power of Google as a diagnostic aid - patients have been using it for years. (© Independent News Service)
Jeremy Laurance