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

Turkey's Controversial Reform Bill Giving Investors Jitters

Homeland security reform bill will give police new powers in search, seizure, detention and arrests, while restricting the rights of suspects, their attorneys More

Audio Slideshow In Kenyan Prison, Good Grades Are Path to Freedom

Some inmates who get high marks could see their sentences commuted to non-custodial status More

'Rumble in the Jungle' Turns 40

'The Champ' knocked Foreman out to regain crown he had lost 7 years earlier when US government accused him of draft-dodging and boxing officials revoked his license 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.
Victorious Secularists Face Challenge to Form Government in Tunisiai
X
Henry Ridgwell
October 30, 2014 11:39 PM
Official results from Tunisia show the Islamist Ennahda party has failed to win the second free election since the so-called "Arab Spring" uprising in 2011. Ennahda, which handed power to a government of technocrats pending the elections, lost out to the secular party Nidaa Tounes. Henry Ridgwell reports from London that the relatively peaceful poll offers some hope in a volatile region.
Video

Video Victorious Secularists Face Challenge to Form Government in Tunisia

Official results from Tunisia show the Islamist Ennahda party has failed to win the second free election since the so-called "Arab Spring" uprising in 2011. Ennahda, which handed power to a government of technocrats pending the elections, lost out to the secular party Nidaa Tounes. Henry Ridgwell reports from London that the relatively peaceful poll offers some hope in a volatile region.
Video

Video Africa Tells its Story Through Fashion

In Africa, Fashion Week is a riot of colors, shapes, patterns and fabrics - against the backdrop of its ongoing struggle between nature and its fast-growing urban edge. How do these ideas translate into needle and thread? VOA’s Anita Powell visited this year’s Mercedes Benz Fashion Week Africa in Johannesburg to find out.
Video

Video Smugglers Offer Cheap Passage From Turkey to Syria

Smugglers in Turkey offer a relatively cheap passage across the border into Syria. Ankara has stepped up efforts to stem the flow of foreign fighters who want to join Islamic State militants fighting for control of the Syrian border city of Kobani. But porous borders and border guards who can be bribed make illegal border crossings quite easy. Zlatica Hoke has more.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.

All About America

AppleAndroid