Intended for healthcare professionals


Diagnosis using search engines

BMJ 2006; 333 doi: (Published 30 November 2006) Cite this as: BMJ 2006;333:1131
  1. Martin Gardner, research fellow (
  1. 1Department of Computing Science, University of Glasgow, Glasgow G12 8QQ

Probably heralds a much more sophisticated web resource

Thousands of computer systems targeted at medical diagnosis (often described as expert systems) have been developed during the past 50 years. Most have had relatively little impact on day to day clinical practice; for example, because they are not easily accessible at the point of care; have a complex interface; can deal with only a narrow focus (one symptom or clinical problem); are not integrated with clinical information systems; depend on particular software or hardware platforms; or require labour intensive construction and are therefore expensive to maintain and extend.

In this week's BMJ a study by Tang and Ng assesses the effectiveness of a web search engine (Google) as a diagnostic aid.1 Using general purpose web search engines as a diagnostic aid is new, although using computers to aid diagnosis is not. …

View Full Text

Log in

Log in through your institution


* For online subscription