Engineers design new optical microprobe to detect subsurface organ abnormalities
... also included results of several micromachine OCT scans of biological tissue. One examined the lining of an excised pig colon. A second scan probed the cornea and iris of an excised pig's eye. A third imaged the underside of a human fingertip. OCT currently has U.S. Food and Drug Administration clinical ...Science highlights of AAN Annual Meeting in Honolulu March 29 April 5
...ts who have not had clinical strokes but whose MRI scans show "silent strokes" and loss of brain volume. Homocysteine can be reduced by certain vitamins. Whether vitamin therapy can reduce the risk for a second stroke was addressed by a large consortium led by researchers at Wake Forest University School o...Growth factor shows promise in Parkinson's patients
...en GDNF. Underscoring improved muscle control, PET scans performed by David Brooks and Gary Hotton at London's Hammersmith Hospital showed a significant increase in the brain's ability to store dopamine, suggesting a direct effect of GDNF on the ability of dopamine to do its job of controlling the body's m...New findings could lead to higher resolution functional MRIs
...ley, could significantly improve the resolution of scans from functional magnetic resonance imaging, one of...ve cell activity. The findings could lead to fMRI scans with a more detailed resolution measured in micrometers. Most current fMRI techniques have a resolut...Dyslexic children`s brains operate more like those of normal readers following training
...stantial effect on reading scores.`` Brain imaging scans of the children who participated in the training showed that critical areas of the brain used for reading were activated for the first time, and that they began to function more normally. Furthermore, additional regions of the brain were activated in...Pain and the brain: Sex, hormones & genetics affect brain's pain control system
...y binds to mu-opioid receptors, they showed on PET scans that the endorphin systems became activated in the brains of 20 volunteers who were subjected to moderate levels of pain in their jaw muscle over 20 minutes. That activation of endorphin release also corresponded with a drop in the volunteers' perce...Brain banks are a powerful tool for alcohol research
...ers, patients, family members and caregivers. MRI scans on post-mortem brain specimens may help resolve inconsistencies found between in vivo (while living) and post-mortem studies of the brain. Age, gender, mode of death, the terminal events leading to death (agonal state), refrigeration interval, post-...Cognitive abilities increase significantly with time in most prematurely born children
...re infants, and they had been examined using brain scans and other tests since they were 6 hours old. The..., so the researchers are giving the children brain scans at age 12 to determine if the brain size differences persist or decrease over time. They are also ...Discovery of size changes of Bacillus spores may lead to simpler, faster anthrax detector
...ixel. In practice, an automated microscope rapidly scans a surface, measuring and recording the size of every object and fitting it to the shape of an ellipse. The absolute precision of a single measurement is better than 50 nanometers, or just two percent of a micron. By measuring the same object multiple...High sugar blood levels linked to poor memory
... tissues where it is used, and performed MRI brain scans to measure the size of the hippocampus in 30 healthy middle-age and elderly men and women (ranging in age from 53 to 89), who were also given a series of tests to assess memory and overall cognition. All of these adults had fasting blood glucose leve......ty. Functional magnetic resonance imaging (fMRI) scans revealed that those with one copy of "met" showed a pattern of activation along the sides of the hippocampus, in contrast to lack of activation among those with two copies of "val." Next, an MRI scanner was used to measure levels of a marker inside n...Little value seen in CT scans for lung cancer screening
Computed tomography (CT) scans widely marketed to consumers may not be valuable f...ohns Hopkins when the study was completed. "These scans are not risk-free. There is a downside to this, including high costs and possible harm to individua...Physics tip sheet #30 - January 9, 2003
...s technique could get micron-scale data out of MRI scans of blood, brain cells, and even buried minerals--without having to re-engineer anything in the machines themselves. Standard MRI imagers today can resolve down to about half a millimeter on a live human, but now a team describes a way of analyzing MR...Applied Biosystems announces SNPlex ultra high throughput genotyping system
...ion should allow customers conducting whole genome scans and other ultra high throughput studies to analyze genetic diversity more quickly and economically using our market-leading, automated electrophoresis systems." By providing an ultra high throughput, high-multiplex solution to SNP genotyping, the SNP...Clinical study results published in NEJM show promising data on Antegren (natalizumab)
...essive MS. The primary analysis was based on MRI scans and showed that patients treated with natalizumab for 6 months had up to 93 percent reduction in new gadolinium-enhancing lesions compared to patients treated with placebo. The reduction in lesions was seen as early as one month after the first infu...Hopkins study finds combined PET-CT better at detecting ovarian cancer
...etabolic activity of tumors. Ten PET and 33 PET-CT scans were performed on 28 patients with ovarian cancer suspected to have spread to the abdominal cavity. There were three true positive and two true negative results with PET alone and 14 true positives and 10 true negatives with PET-CT. The PET scan al...Non-invasive imaging technique detects plaques beginning to form in vessels
...sterol diets for about 80 days. They then took MRI scans of the abdominal aorta the largest artery in the body for two hours after injection. The cholesterol-fed rabbits injected with targeted nanoparticles had gadolinium signals in the abdominal aorta more than twice as bright as the other rabbits. Pos...Hearing loss & rehab, stroke & depression among topics of Vol. 39, Iss 5, JRRD
...p them avoid dangerous shoes. Computer tomography scans used to create a 3D model of bone Identifies a me...models from CT scans, is rapid, and can process CT scans from different individuals. Addition of display of bone shapes could provide additional information ...A new twist on an age-old problem: Making knee replacements last
...inner forces on the knee using computer models, CT scans and reverse-engineering software produced by Research Triangle Park-based Raindrop Geomagic. One result of the three-year project, funded with a $210,000 grant from the National Institutes of Health, may be a better understanding of how to guard agai...New tool for studying animal models of neurological and psychiatric diseases
...y comparing magnetic resonance imaging (MRI) brain scans of the two strains, which showed no differences. They also confirmed the difference in D2 receptor levels between "deficient" and normal mice with traditional autoradiography, where tissue samples are labeled with a radiotracer to reveal receptor lev...