Tag: scans
Scans of Angel Lynn’s skull show damage from falling head-first from van after ex kidnapped her
‘Like banging your head against a brick wall’: Sir Rod Stewart struggling to arrange more free MRI scans
TikTok CEO says company scans public videos to determine users’ ages
Amid questioning about TikTok’s use of biometrics in today’s Congressional hearing, TikTok CEO Shou Zi Chew offered some insight into how the company vets potentially underage users on its platform. After denying the app collects body, face or voice data to identify its users — beyond what’s needed for its in-app AR filters to function, […]
TikTok CEO says company scans public videos to determine users’ ages by Sarah Perez originally published on TechCrunch
Researchers Claim Their AI Algorithm Can Recreate What People See Using Brain Scans
A recent study, scheduled to be presented at an upcoming computer vision conference, demonstrates that AI can read brain scans and re-create largely realistic versions of images a person has seen….
Many labs have used AI to read brain scans and re-create images a subject has recently seen, such as human faces and photos of landscapes. The new study marks the first time an AI algorithm called Stable Diffusion, developed by a German group and publicly released in 2022, has been used to do this…. For the new study, a group in Japan added additional training to the standard Stable Diffusion system, linking additional text descriptions about thousands of photos to brain patterns elicited when those photos were observed by participants in brain scan studies. Unlike previous efforts using AI algorithms to decipher brain scans, which had to be trained on large data sets, Stable Diffusion was able to get more out of less training for each participant by incorporating photo captions into the algorithm….
The AI algorithm makes use of information gathered from different regions of the brain involved in image perception, such as the occipital and temporal lobes, according to Yu Takagi, a systems neuroscientist at Osaka University who worked on the experiment. The system interpreted information from functional magnetic resonance imaging (fMRI) brain scans, which detect changes in blood flow to active regions of the brain. When people look at a photo, the temporal lobes predominantly register information about the contents of the image (people, objects, or scenery), whereas the occipital lobe predominantly registers information about layout and perspective, such as the scale and position of the contents. All of this information is recorded by the fMRI as it captures peaks in brain activity, and these patterns can then be reconverted into an imitation image using AI. In the new study, the researchers added additional training to the Stable Diffusion algorithm using an online data set provided by the University of Minnesota, which consisted of brain scans from four participants as they each viewed a set of 10,000 photos.
If a study participant showed the same brain pattern, the algorithm sent words from that photo’s caption to Stable Diffusion’s text-to-image generator.
Iris Groen, a neuroscientist at the University of Amsterdam who was not involved with the work, told Science that “The accuracy of this new method is impressive.”
Read more of this story at Slashdot.
‘Change the bloody government’: Sir Rod Stewart calls in to Sky News to donate for medical scans
GPs urged to send thousands more patients for scans in bid to diagnose cancer earlier
Major cancer treatment shake-up as GPs to get extra powers to book cancer scans directly in bid to tackle disease early
GPS will get extra powers to book cancer scans directly under NHS plans to boost early diagnosis.
Tens of thousands of tumours should be caught earlier under the initiative.
The scheme should slash delays for the 67,000 sufferers a year who have just vague symptoms[/caption]
NHS England CEO Amanda Pritchard encourages the idea of early testing to catch cancers[/caption]
It should slash delays for the 67,000 sufferers a year who have vague symptoms such as tiredness or tummy aches.
They account for one in five cancers detected but GPs will no longer need to send them to a hospital specialist before ordering tests.
NHS England CEO Amanda Pritchard will tell an NHS conference today: “By sending patients straight to testing, we can catch and treat more cancers at an earlier stage.”
Health bosses say the programme will also free up hundreds of thousands of hospital appointments.
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Many non-urgent cases will be false alarms — but the NHS finds 67,000 out of 289,000 cancers this way each year.
Fast-tracking MRI, CT and ultrasound scans will cut waits times down to four weeks.
By 2028 the NHS wants to diagnose three quarters of cancers at stages one and two, before they have spread — clinics currently manage just over half.
Prof Martin Marshall from the Royal College of GPs, said: “It can be helpful for patients who might not meet the criteria for rapid referral and have vague symptoms that could be cancer.”
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Kruti Shrotri from Cancer Research UK, added: “Cancer that is diagnosed and treated at an early stage is more likely to be treated successfully, so we welcome this announcement.”