Every London NHS trust is now using the Pacs digital X-ray system, which will be available across the country by 2008.
The Department of Health says Pacs, which is a filmless system, will save each London trust around £250,000 a year, as well as provide speedier diagnoses for patients.
Health minister Patricia Hewitt said, "The NHS leads the way in using digital X-rays, which are not yet being used by all leading private healthcare providers.
"The digital images will follow patients wherever they go and will be able to be recalled whenever and wherever they need to be accessed by a patient's healthcare professional.”
The roll-out of Pacs across the country is expected to be completed in late 2007 or early 2008.
The local service provider responsible for installing Pacs in London is BT, using technology supplied by Philips.
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