News / Science & Technology

Active MRI Shows How Joints Work

Active MRI Catches Images in Motioni
X
George Putic
March 18, 2014 8:27 PM
Since its introduction in the 1980s, magnetic resonance imaging machines, commonly known as MRI scanners, have become a highly valuable tool in diagnostic medicine. Researchers in California now say they have developed a new method that enables them to see moving images of body joints.
George Putic
Since its introduction in the 1980s, magnetic resonance imaging machines, commonly known as MRI scanners, have become a highly valuable tool in diagnostic medicine.  Researchers in California now say they have developed a new method that enables them to see moving images of body joints. 

With the MRI scanner, the part of the patient’s body that needs to be observed is exposed to a very strong magnetic field which excites hydrogen atoms in its tissues.

Different tissues emit different radio frequencies which a computer turns into images.  For the image to be as clear as possible, the patient has to lie perfectly still.

Researchers at the University of California Davis developed a procedure for getting moving images of body parts, like joints.

Professor Robert Boutin, who leads the research team, says the procedure called ‘Active MRI’, captures multiple images per second. Those images, he says, will help doctors analyze the mechanics of the patient's joint before and after the surgery.

“One thing that is important is that we can personalize the exam to address what is causing symptoms to the patient, rather than doing the same thing for everyone," Boutin said.

As one observed patient moves his wrist, one of the most complicated joints in a human body, the image clearly shows the interaction of all the parts involved.

The new procedure has already helped him find out what is causing problems for his patients, said orthopaedic surgeon Robert Szabo.

“We can understand why one person develops an unstable wrist, why one person has pain and wears out the joint surface in one area of the wrist and what we can do to replace, make better products over even make soft tissue corrections to improve that patients life.”

Boutin said ‘Active MRI’ will also help doctors better understand all other moving parts of the body.

“I think that it could and should be applied to every other joint in the body, not only other joints, but muscles and tendons," he said. "We are built to move and I think that MR imaging should reflect that.”

Doctors say they expect further improvements in the new technology that could also help make better prosthetics for amputees.

You May Like

Obama: I Will Do 'Everything I Can' to Close Guantanamo

US president says prison continues 'to inspire jihadists and extremists around the world' More

Sierra Leone Educates on Safe Ebola Burials

Also, country is improving at rapid response to isolated outbreaks, but health workers need to be even faster, officials say More

Religion Aside, Christmas Gains Popularity in Communist Vietnam

Increasingly wealthy Vietnamese embrace holiday due to its non-religious glamor, commercial appeal More

This forum has been closed.
Comment Sorting
Comments
     
by: Yoshi from: Sapporo
March 19, 2014 2:53 AM
Amazing. Real time scanning and imaging have been considered impossible for MRI because of the long acquisiting time needed for it.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
US Decision on Cuba Underscores Divisions Among Miami Cubansi
X
Sharon Behn
December 19, 2014 9:34 PM
For decades, older, more conservative Cubans have been gathering at Café Versailles on the corner of Calle Ocho to eat Cuban food and talk politics. After hearing of President Barack Obama’s decision, a number of them gathered in front of the café with posters to protest. VOA's Sharon Behn reports on the situation.
Video

Video US Decision on Cuba Underscores Divisions Among Miami Cubans

For decades, older, more conservative Cubans have been gathering at Café Versailles on the corner of Calle Ocho to eat Cuban food and talk politics. After hearing of President Barack Obama’s decision, a number of them gathered in front of the café with posters to protest. VOA's Sharon Behn reports on the situation.
Video

Video Three Cities Bid for Future Obama Presidential Library

President Barack Obama still has two years left in his term in office, but the effort to establish his post-presidential library is already underway. The bid for the Obama Presidential Library is down to four locations in three states -- New York, Hawaii, and Illinois. As VOA’s Kane Farabaugh reports, each of them played an important part in the president’s life before he reached the White House.
Video

Video Cuba Deal is Major Victory for Pope’s Diplomatic Initiatives

Pope Francis played a key role in brokering the US-Cuba deal that was made public earlier this week. It is the most stunning success so far in a series of peacemaking efforts by the pontiff. VOA religion reporter Jerome Socolovsky has more.
Video

Video Fears of More Political Gridlock in 2015

2014 proved to be a difficult year politically for President Barack Obama and a very good year for the U.S. Republican Party. Republican gains in the November midterm elections gave them control of the Senate and House of Representatives for the next two years -- setting the stage for more confrontation and gridlock in the final two years of the Obama presidency. VOA National Correspondent Jim Malone has a preview from Washington.
Video

Video Sudan School Becomes Target of Aerial Attacks

The school dropout rate is at an all-time high in Sudan's South Kordofan state because many schools have been destroyed during the three-year civil war between the government and SPLA-N rebel forces. Adam Bailes visited Sudan's Nuba Mountains' region and reports many children are simply too scared to go to school
Video

Video VOA Reporter Tours Devastated Peshawar School

Islamist militants wearing military uniforms and strapped with explosives attacked a military run school Tuesday in the northwestern Pakistani city of Peshawar. At least 141 people were killed in the horrific attack, most of them young students. VOA reporter Ayaz Gul visited the devastated school and attended the funeral of the principal who courageously tried to save her students from the deadly attack.
Video

Video Nigerians Fleeing Boko Haram Languish in Camp Near Capital

In its five-year effort to impose Islamic law in northeastern Nigeria, the Boko Haram extremist group has killed thousands of people and forced hundreds of thousands to flee. Some of those who ran for their lives now live in squalor on the edges of the capital, Abuja. Chris Stein reports for VOA.
Video

Video Aceh Rebuilt Decade After Tsunami, But Scars Remain

On December 26, 2004 there was an earthquake in the Indian Ocean so powerful it caused the Earth’s axis to wobble a few centimeters. Onshore on the island of Sumatra, the resulting tsunami was devastating. A decade later, VOA Correspondent Steve Herman reports from Banda Aceh, Indonesia, where although there is little remaining evidence of the physical devastation, the psychological scars among survivors remain.

All About America

AppleAndroid