News / Health

New Imaging Technique Reveals Mild Brain Injuries in Soldiers

Jessica Berman

Researchers are using an advanced imaging technique to help diagnose mild blast-related traumatic brain injuries in soldiers whose wounds don’t usually show up in conventional brain imaging scans. Scientists are hopeful the new technique will enable doctors to identify many previously untreated brain-injury victims, and help them get the medical care they need.

An estimated 320,000 military personnel in Iraq and Afghanistan have suffered traumatic brain injuries. Often these injuries are classified as mild because they do not show up on brain scans, making subsequent symptoms, like brain fog or forgetfulness, difficult to treat.

But in a new study, an advanced brain imaging technique called diffusion tensor imaging was able to find abnormalities in the white matter brain tissue of soldiers who had sustained mild blast-related traumatic brain injuries, or TBI.   White matter is a critical part of the brain’s wiring system that allows nerve cells to communicate with one another.

Conducted by investigators at the Washington University School of Medicine in St. Louis and the Landstuhl Regional Medical Center in Germany, the small study involved 63 soldiers who had sustained mild TBIs as a result of battlefield blasts plus other injuries such as falls, motor vehicle injuries or being struck by blunt objects.

There was also a control group of 21 military personnel who had been injured in blasts but were not diagnosed with TBI.

Washington University neurology researcher Christine MacDonald says tensor imaging allows scientists to see the movement of water through injured brain tissue, something that’s not seen in other types of brain imaging.

MacDonald says investigators noted the presence of water in the white matter on initial scans taken in Germany approximately fourteen days after the initial injury.

MacDonald says researchers then saw faint but discernable changes in water flow, or diffusion, in follow-up tensor scans six to 12 months later, after the soldiers had returned to St. Louis. "This diffusion of water is in line with what we expect for injury and its progression over time.  Versus something that would, say, be pre-existing," she said.

Researchers noted white matter abnormalities in the tensor images of 18 of 63 patients in the study who had been diagnosed with concussions.  They were not seen in 21 patients diagnosed with other types of injuries.

A diagnosis of TBI is controversial because experts are not sure whether the symptoms following mild traumatic brain injury are due to disruptions in brain chemistry, structural changes, physiological factors or a combination of all three.

At this point, MacDonald says experts are unsure what role, if any, the white matter abnormalities play in factors like altered attention, memory and, importantly, post-traumatic stress disorder, a condition which plagues many returning veterans.

MacDonald says studies continue to explore whether diffusion imaging could be a useful tool in helping to identify the source of the lingering effects of traumatic brain injury.

“Long term, years down the line, possibly this could be something that would be an assisted diagnostic tool.  But that’s really something that’s outside the scope of this current manuscript; but definitely hope long term,"she said.

An article describing the discovery brain abnormalities in people with mild blast-related traumatic brain injury is published in the New England Journal of Medicine.

You May Like

Russian Help on Iran Less Promising on Syria, Ukraine

US-Russian collaboration to secure a deal on Iran's nuclear program has raised hopes of closer cooperation on other world issues More

Video US: Millions Exploited by Vast Fortunes of Human Trafficking

State Department's annual report calls exploitation 'modern slavery,' brutalizing girls, women into prostitution and forcing men, women and children into low-wage jobs across the globe More

US-Ethiopia Relationship Strong, But Complicated

While Ethiopia serves as a valuable security ally and a bulwark against terrorism - the U.S., is a major aid donor and economic stimulator More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Iran Nuclear Pact Wins Few New US Congressional Backersi
X
Michael Bowman
July 26, 2015 8:44 PM
Later this week, President Barack Obama returns from a trip to Africa to confront a U.S. Congress roiled by the nuclear accord with Iran, an agreement that has received the blessing of the U.N. Security Council. Days of intensive lobbying and testimony by top administration officials have won few new congressional supporters of the pact. VOA’s Michael Bowman reports.
Video

Video Iran Nuclear Pact Wins Few New US Congressional Backers

Later this week, President Barack Obama returns from a trip to Africa to confront a U.S. Congress roiled by the nuclear accord with Iran, an agreement that has received the blessing of the U.N. Security Council. Days of intensive lobbying and testimony by top administration officials have won few new congressional supporters of the pact. VOA’s Michael Bowman reports.
Video

Video Underground Streetcar Station In Washington, DC, to Become Arts Venue

Abandoned more than 50 years ago, the underground streetcar station in Washington D.C’s historic DuPont Circle district is about to be reborn. The plan calls for turning the spacious underground platforms - once meant to be a transportation hub, - into a unique space for art exhibitions, presentations, concerts and even a film set. Roman Mamonov has more from beneath the streets of the U.S. capital. Joy Wagner narrates his report.
Video

Video Obama Encourages Kenya to Fix Cultures of Corruption, Discrimination

President Barack Obama bid farewell to Kenya Sunday with a major speech at as stadium outside the capital Nairobi where he called on Kenyans to change the cultures of corruption and discrimination that can hold society back. VOA East Africa Correspondent Gabe Joselow has the story.
Video

Video Europe’s Twin Crises Collide in Greece as Migrant Numbers Soar

Greece has replaced Italy as the main gateway for migrants into Europe, with more than 100,000 arrivals in the first six months of 2015. Many want to move further into Europe and escape Greece’s economic crisis, but they face widespread dangers on the journey overland through the Balkans. VOA's Henry Ridgwell reports.
Video

Video Stink Intensifies as Lebanon’s Trash Crisis Continues

After the closure of a major rubbish dump a week ago, the streets of Beirut are filling up with trash. Having failed to draw up a plan B, politicians are struggling to deal with the problem. John Owens has more for VOA from Beirut.
Video

Video Paris Rolls Out Blueprint to Fight Climate Change

A U.N. climate conference in December aims to produce an ambitious agreement to fight heat-trapping greenhouse gases. But many local governments are not waiting, and have drafted their own climate action plans. That’s the case with Paris — which is getting special attention, since it’s hosting the climate summit. Lisa Bryant takes a look for VOA at the transformation of the French capital into an eco-city.
Video

Video Racially Diverse Spider-Man Takes Center Stage

Whether it’s in a comic book or on the big screen, fans have always known the man behind the Spider-Man mask as Peter Parker. But that is changing, at least in the comic book world. Marvel Comics announced that a character called Miles Morales will replace Peter Parker as Spider-Man in a new comic book series. He is half Latino, half African American, and he is quite popular among comic book fans. Correspondent Elizabeth Lee reports from Los Angeles.
Video

Video California Towns Welcome Special Olympics Athletes

Cities and towns in Southern California are greeting thousands of athletes who are arriving for Special Olympics, a competition for people with intellectual disabilities. The games will run from July 25th through August 2nd. VOA's Mike O'Sullivan reports from Pasadena, California, where athletes from Namibia, Singapore and Tanzania got a rousing welcome from local residents.
Video

Video Critics of Japan Defense Policy Focus on Okinawa

In Okinawa, many locals have long complained that Tokyo places an unfair burden on the tiny island by locating most of Japan's U.S. military bases there. As Japan's government moves toward strengthening and expanding the country's defense policies, opponents of those plans are joining local protesters in Okinawa, voicing concern about where the country is headed. VOA’s Brian Padden reports from Okinawa.
Video

Video IS Uses Chemical Weapons in Syrian Attack

Islamic State militants have added a new weapon in their arsenal of fear: chemical weapons. VOA Kurdish service reporter Zana Omer was on the scene within hours of a recent attack in Hasakah, Syria, and has details of the subsequent investigation, in this report narrated by Miguel Amaya.
Video

Video Historic Symbol Is Theme of Vibrant New Show

A new exhibit in Washington is paying tribute to the American flag with a wide and eclectic selection of artwork that uses the historic symbol as its central theme. VOA’s Julie Taboh was at the DC Chamber of Commerce for the show’s opening.
Video

Video Hoverbike Flying Toward Reality

Another long-standing dream of many technological inventors is quickly approaching reality: U.S.- and British-based firms are cooperating in the development of an individual flying platform they call a hoverbike. They say it may revolutionize the concept of flying, including in the U.S. military. VOA’s George Putic reports.
Video

Video As Japan Expands Defense Role, Protests Follow

The Japanese government is moving forward with a controversial security bill that would authorize the military to fight abroad for the first time since World War II. Leaders say it is critical to defend against rising threats from China and North Korea. VOA’s Brian Padden reports from Japan on the big changes ahead, and the opposition they are drawing.
Video

Video Rise in HIV Infections Worries Ugandan Officials

Uganda had the third-highest number of new HIV infections in sub-Saharan Africa last year, reversing its reputation for successfully tackling the epidemic in the 1990s. Although the percentage of people living with HIV/AIDS is still half of what it was in the 1980s, the increase in new infections is worrying to health workers. VOA's Serginho Roosblad reports.
Video

Video Replacing Poppies with Coffee in Myanmar

The remote mountains of Myanmar’s Shan state are home to the second-largest opium-producing region in the world. After a drop during the 2000s, production surged in the past eight years to feed an increasing demand for heroin in China. But farmers are now making less on the crop, and the U.N. is hoping many will make the switch to growing coffee. Daniel de Carteret reports for VOA from Taunggyi.

VOA Blogs