John C. Hayes

Articles by John C. Hayes

Do you think stripping out textual identifying information in publicly available radiologic images will protect you against privacy violations? Think again. A paper presented Thursday at the 2010 RSNA meeting showed how facial images reconstructed from maxillofacial sinus and cerebral vasculature images could be matched in a database using commonly available face-matching software.

CT scout or scanogram images make up only about 4% of the typical chest/abdominal scan radiation dose, but are an easy target for dose reductions, according to a study presented Wednesday. Further, as technology changes and protocol updates reduce overall dose rates, scout images will make up a relatively larger part of the total and still represent a good target for cuts.

There was a time when attendees of what was then known as the Stanford Multidetector CT Symposium workstation face-off went expecting to see a train wreck. In the past, that often occurred: a workstation would freeze, an operator would get lost, a network would crash.

Korean researchers tested the ability of radiologists to spot CT images altered with commercially available software to introduce pathology and found that their skill is no more certain than the toss of a coin.

Since the attempted explosion of an airliner as it was landing in Detroit on Christmas Day by an alleged terrorist from Nigeria, global air safety experts have been scrambling to enact new safety measures. A quick answer has come in the form of whole-body scanners that use low-level radiation to allow screeners to see through clothing to identify hidden weapons or explosives.

Korean researchers tested the ability of radiologists to spot CT images altered with commercially available software to introduce pathology and found that their ability to do so is no more certain than a coin flip.

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