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Head Imaging News

Many Americans Think Docs Order Too Many Tests, Meds

Posted 11 days ago by

TUESDAY, March 6, 2018 – Few older Americans believe ordering more tests and drugs is the way to better health care, a new survey finds. Of the more than 2,000 respondents aged 50 to 80, just 14 percent thought that "more is better," according to the National Poll on Healthy Aging. In fact, 54 percent said they believe that health care providers often recommend tests, medications or procedures ...

Researchers Probe Mystery of Illnesses in U.S. Cuba Embassy Personnel

Posted 15 Feb 2018 by

THURSDAY, Feb. 15, 2018 – They described hearing loud, unusual noises in either their homes or hotel rooms. Afterwards, they experienced concussion-like symptoms such as memory and thinking problems, headaches, dizziness and balance issues. But the exact nature of what harmed more than 20 U.S. government personnel stationed in Havana, Cuba, last year remains mysterious, reports a team led by Dr. ...

First Blood Test to Evaluate Potential Concussions Approved

Posted 15 Feb 2018 by

WEDNESDAY, Feb. 14, 2018 – The first blood test designed to help doctors evaluate whether a suspected brain injury is a concussion has been approved by the U.S. Food and Drug Administration. Traditional concussion evaluation includes a CT scan of the head to detect any brain tissue damage. But many people who have such a scan do not have brain lesions that are detectable, the FDA said Wednesday ...

Too Many Patients Know Too Little About Their MRI, CT Scans: Study

Posted 13 Feb 2018 by

TUESDAY, Feb. 13, 2018 – Before they go in for an X-ray, CT scan or MRI, patients may have questions about their screening. But new research finds at least one in every five people saying they received no information about their procedures beforehand. "This is an important finding in today's health care system, where we want more patient engagement and involvement," said lead author Dr. Jay ...

FDA Says U.S. Will Now Produce Critical MRI Component

Posted 8 Feb 2018 by

THURSDAY, Feb. 8, 2018 – A long-feared shortage of a substance used in millions of medical imaging procedures each year in the United States appears to have been avoided, federal officials report. The U.S. Food and Drug Administration announced today that it has approved a new technology to produce the country's own supply of the substance – a radioisotope called Technetium-99m (Tc-99m). The ...

Can Brain Scans Reveal Who Your Friends Are?

Posted 30 Jan 2018 by

TUESDAY, Jan. 30, 2018 – You and your friends likely share similar interests. But did you know you could also have similar patterns of brain activity? Dartmouth College researchers assessed the friendships or social ties within a group of nearly 280 graduate students. Brain scans revealed that friends had the most similar brain-pattern responses to videos. And friends of friends had more similar ...

Another Alzheimer's Drug Fails: What Makes This Disease So Tough to Fight?

Posted 25 Jan 2018 by

THURSDAY, Jan. 25, 2018 – As more experimental drugs fail to stop Alzheimer's from destroying human memory, experts now wonder whether research into the devastating brain disease has been marching in the wrong direction. In recent weeks, a pair of high-profile disappointments have been reported, including one just announced on a trial of the Eli Lily drug solanezumab. Now, researchers are trying ...

MRIs Safe With Older Pacemakers, Study Finds

Posted 29 Dec 2017 by

WEDNESDAY, Dec. 27, 2017 – Powerful magnetic fields created during an MRI scan were thought to play havoc with some pacemakers, but a new study says these scans are safe for people with the heart devices. Researchers tested the safety of MRIs on more than 1,500 people who had older pacemakers or implantable defibrillators – called legacy devices – that the U.S. Food and Drug Administration ...

Pet Dogs May Speed Human Brain Cancer Trials

Posted 26 Dec 2017 by

TUESDAY, Dec. 26, 2017 – Man's best friend may help scientists learn more about a deadly brain cancer in people. Both dogs and humans can develop glioblastoma. Half of people diagnosed with this type of brain cancer live fewer than 14 months, even after treatment with surgery, radiation and chemotherapy. Sen. John McCain is being treated for glioblastoma and Sen. Ted Kennedy died from the ...

New Research Probes the Criminal Mind

Posted 26 Dec 2017 by

TUESDAY, Dec. 26, 2017 – Are brain lesions linked to criminal behavior? That's the suggestion of a new study by researchers at Beth Israel Deaconess Medical Center in Boston. Ever since the 1966 University of Texas Tower mass shooting, which left 13 people dead and 31 others injured, researchers have been intrigued by the possible ties between brain abnormalities and criminal behavior. In that ...

FDA Issues Tougher Warning on MRI Gadolinium-Based Dye Tied to Brain Effects

Posted 19 Dec 2017 by

TUESDAY, Dec. 19, 2017 – The U.S. Food and Drug Administration on Tuesday called for tougher warnings and "additional research" into a dye commonly used with standard MRIs. The dye – a "contrast agent" – contains a metal called gadolinium. It made news recently after claims from actor Chuck Norris that its use during MRI scans seriously affected his wife's brain. Contrast agents are injected ...

Chuck Norris Says MRI Dye Harmed Wife's Brain, But Study Finds No Link

Posted 29 Nov 2017 by

WEDNESDAY, Nov. 29, 2017 – Despite recent claims from actor Chuck Norris that a dye commonly used during MRI scans seriously sickened his wife, a new study finds no evidence to support such a link. The substance in question is gadolinium. It's a metal found in contrast agents that are injected into the body during an MRI scan, to enhance the quality of the images. Earlier this month, Norris ...

Brain Beats Brawn in Quest for Energy

Posted 8 Nov 2017 by

WEDNESDAY, Nov. 8, 2017 – The brain gets priority over muscles when both are competing for energy, a new study finds. Tests with 62 elite rowers at a British university, who averaged 21 years old, revealed that when they had to think fast and exert themselves at the same time, the brain was first in line to receive energy-providing glucose. This is likely an evolutionary trait because quick ...

Human vs. Animal Brainpower: More Alike Than You Might Think

Posted 7 Nov 2017 by

MONDAY, Nov. 6, 2017 – Your brain's energy use is not as unique as experts have thought, a new study finds. It's been long believed that the human brain consumed a larger portion of total body energy than did the brains of many animals. The human brain accounts for 2 percent of body weight but consumes more than 25 percent of available energy. However, researchers who compared brain energy use ...

Resilient Brain Connections May Help Against Alzheimer's

Posted 2 Nov 2017 by

THURSDAY, Nov. 2, 2017 – Certain pieces of brain structure may make some people less likely to develop Alzheimer's disease. That's the conclusion of a new study that could lead to new ways to prevent or slow the memory-destroying disease, researchers said. For the study, the researchers analyzed brain samples from patients at memory clinics and found that the presence of healthy dendritic spines ...

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