The first step was not an easy one: Training dogs to remain absolutely still in a functional magnetic resonance imaging (fMRI) scanner. It took several months for dog trainers to work their magic on 13 pet dogs that live in Hungary, including six border collies, four golden retrievers, one German shepherd, and one Chinese crested.
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They then tested the models on an external test set of 129 paired radiographs from patients at Johns Hopkins University who were diagnosed with sarcoidosis involving any organ. The test set had a higher prevalence of hilar adenopathy compared with the general population, Mazumdar noted. For the purposes of the study, the ground truth was determined by board-certified thoracic radiologists after reviewing contemporaneous chest CT images.
It can predict a person's age with 84 per cent accuracy, say researchers The machine can guess how old someone is within a 10 year range While most of us know how old we are from our birthday, there are some - like those who are orphaned at a young age - who have no idea when they were born. But now a new technique may make it possible to determine a person's age with a simple blood test.
Researchers then conducted functional Magnetic Resonance Imaging scans on the dogs while their owners stood in front of the machine calling out the name of each object while showing the corresponding toy. The owners also called out meaningless words while displaying random objects. The fMRI results showed increased activation in auditory regions of the dogs' brains to the unassigned words compared to the trained words.