The obesity epidemic and the economics of large-bore CT scanners.
…The problem is two-fold: First, MRIs, CT scanners, and X-rays just can’t penetrate the greater masses of tissue, and secondly, those machines just can’t hold morbidly obese patients. And what it all boils down to is that severely obese Americans can’t get the treatment because surgeons won’t operate without the scans.
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This film is really beautiful, for a number of reasons. Subjects are asked to focus on “love” while being imaged at the Stanford Center for Cognitive and Neurobiological Imaging. The science certainly wouldn’t pass peer-review, but the cinematography is stunning, and the idea beautiful.
Magnetic resonance imaging (MRI) devices can scan the inside of the body in intricate detail, allowing clinicians to spot even the earliest signs of cancer or other abnormalities. But they can be a long and uncomfortable experience for patients, requiring them to lie still in the machine for up to 45 minutes.
Now this scan time could be cut to just 15 minutes, thanks to an algorithm developed at MIT’s Research Laboratory of Electronics.
MRI scanners use strong magnetic fields and radio waves to produce images of the body. Rather than taking just one scan of a patient, the machines typically acquire a variety of images of the same body part, each designed to create a contrast between different types of tissue. By comparing multiple images of the same region, and studying how the contrasts vary across the different tissue types, radiologists can detect subtle abnormalities such as a developing tumor. But taking multiple scans of the same region in this way is time-consuming, meaning patients must spend long periods inside the machine