Tag: "scanner" at medical news
Brain imaging study may hold clues to onset of schizophrenia in people at high risk
...ers, such as the colored squares and objects." The scanner
mapped participants' neural activity in specific brain areas before, during and after the presentation of the visual target events. "Our goal was to see if the high-risk individuals showed normal brain activity during these executive tasks or whethe...
Dartmouth researchers find where musical memories are stored in the brain
...s missing short snippets. "We played music in the scanner
[fMRI], and then we hit a virtual 'mute' button," says first author David Kraemer, a graduate student in Dartmouth's Psychological and Brain Sciences Department. "We found that people couldn't help continuing the song in their heads, and when they di...
Study: Two brain systems regulate how we call for help
... special animal PET (positron emission tomography) scanner
at UW-Madison's Waisman Laboratory for Functional Brain Imaging and Behavior. The high-resolution scans revealed metabolic activity in precise areas of the animals' small brains. The scans showed that animals that called the most had more activity in...
Study: Eye contact triggers threat signals in autistic children's brains
...researchers placed autistic children inside an MRI scanner
and showed them pictures of faces with both emotional and neutral expressions. The children had to press one of two buttons to indicate whether a face showed a blank or expressive face. Throughout the process, the researchers used precise eye-trackin...
Most advanced CT scanner improves imaging of heart, avoids need for surgical inspection
...art attack. In use at Hopkins since Feb. 21, the scanner
is expected to replace many diagnostic angiograms,... diagnostic coronary imaging. The upgraded Hopkins scanner
is one of two identical systems currently operating in the United States, the other installed in Bos...
Next generation body scanner launched by the University of Manchester
... generation' MRI (magnetic resonance imaging) body scanner
in the world will be officially launched at Hope H...d out at a much faster speed than ever before. The scanner
will enable researchers to create images of structures in the body such as individual vessels in the...
NYU psychology researchers show how attention enhances visual perception
... while observers performed this task inside the MR scanner
housed at the NYU Center for Brain Imaging. This technology allows scientists to map activity in the visual cortex [see diagram of brain]. This experiment revealed that when a cue preceded the target, the target evoked a larger brain response than wh...
New way to diagnose sciatica may point to a different cause
...ing, a procedure in which a specially designed MRI scanner
guides deep injections of pain medication into the spine, muscles, or near nerves. "For the last 70 years, sciatica has been thought to be caused by a herniated disc and treated as such," said Dr. J. Patrick Johnson, M.D., senior author of the study...
Exercise for special populations, sensory research, factors impacting rehabilitation top issues
...d shape after prosthesis removal. A custom optical scanner
was used to image the residual limbs of six volunteers with below knee amputations. Results showed that changes in volume over a 35-minute interval after prosthesis removal were greater than those experienced over a two-week interval. In four of the ...
Smoking affects same 'feel good' brain chemical system as heroin
...o find a way to perform their study in the U-M PET scanner
despite the strict no-smoking policy of the U-M's ...person to smoke a cigarette while lying in the PET scanner
having his or her brain scanned, and collected the smoke to vent it to the outdoors. They obtained s...
Northwestern researchers pinpoint how false memories are formed
... The memory test was administered outside the scanner
and began approximately 20 minutes after the scanning. Subjects heard a randomly ordered sequence of spoken words. One-third corresponded to photos they had seen, one-third to objects they had only imagined and one-third they had neither seen nor ima...
3D neutron-based medical imaging, 4D lung scans, and hitting a moving tumor
...mdanderson.org ) use hybrid PET-CT machines. A CT scanner
first maps the motion of all organs and the tumor while the patient is breathing, then a PET scanner
gets detailed information on the tumor. Because the researchers know the motion of the organs and t...
MDCT angiography can replace angiography in diagnosing suspected arterial injuries
...trast media runs through the blood vessels, the CT scanner
takes multiple images then a computer software program immediately reconstructs those images to show the vessels in multiple planes, said Dr. Stuhlfaut. A catheter isn't required like it is for traditional angiography. "MDCT angiography also gives u...
'Considerable reductions' in radiation exposure possible with 16-MDCT scanner on body applications
By using a 16-slice scanner
as opposed to a 4-slice scanner, considerable redu...s into account, can be improved with a 16-slice CT scanner
at a reduced dose level," he said. According to the authors, their findings do not completely rule ...
Coronal reformatting of axial images from 16-MDCT helps stage ovarian cancer
...d on a 16-MDCT (multidetector computed tomography) scanner
in a coronal plane serves as a useful adjunct in the staging of ovarian cancer, says a new study by researchers from Massachusetts General Hospital in Boston, MA. The study included 18 patients with ovarian cancer who had been imaged with MDCT and ha...
Controlling pain with your brain
... to increase or decrease the signal from the brain scanner
and to periodically rate their pain sensations. It took just three 13-minute sessions in the scanner
for the eight volunteers to learn to vary the brain activity level, and thus to develop some control...
Novel MRI technique provides clear images of blood flow
... are still excited as they flow downstream and the scanner
can detect that signal. So the scanner
is simultaneously tagging protons and collecting data." During an MRI examination, a patient is guid...
New dynamic PET technique offers greater comfort for cancer patients
...he researchers stated. "Less time spent in the PET scanner
is more comfortable for patients, and, from the perspective of the nuclear medicine practitioner, this procedure could also save both time and money."...
New breast scanner can detect early signs of cancer
...versity Medical Center have developed a new breast scanner
that is designed to detect subtle changes in breas...tonio Breast Cancer Symposium. The key to the new scanner
is that it detects changes in the behavior of cancer cells rather than structural changes, such as t...
New standard proposed for coronary artery calcium screening
...re accurate, calibrated result, independent of the scanner
being used or the patient's size. The new standards also include recommendations that allow for reduced radiation doses for small and medium-size patients. The consortium's research lays the groundwork for a database that will reference a patient's...
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