fMRI

The brain imaging technology known as functional MRI (fMRI) works by measuring blood flow in the brain, with spatial corrections made by computer analysis. It has been a quarter century since fMRI first appeared, and its use is now routine in clinical practice for things such as pre-surgical planning. Researchers in Sweden and the UK, however, have found that a computer software flaw regularly resulted in spatial errors (mostly false positives) in 50% or more of the images. The flaw has been corrected, but study sets from past images may be compromised.   MORE

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