Featured Research

from universities, journals, and other organizations

Cardiac Imaging: 7-tesla Magnetic Resonance Tomograph Provides Sharper Pictures

Date:
January 27, 2009
Source:
Physikalisch-Technische Bundesanstalt (PTB)
Summary:
Snap-shots of a diseased heart or deep insights into cancer cells – a 7-tesla magnetic resonance tomograph promises scientists novel possibilities. The magnetic field of this so-called ultra-high field magnetic resonance tomograph (MRT) is 140 000 times as strong as that of the Earth and can make the most minute structures of the human body visible. This facilitates not only the development of possibilities for diagnosis and therapy in the case of brain and cancer diseases, but also opens up completely new possibilities, among other things, in cardiac research.

Cross section of a human brain: The picture on the left is derived from a 3-tesla MRT; the picture on the right from the new 7-tesla MRT. For equal examination times, the 7-tesla picture shows considerably better and sharper structures. The richness of detail is helpful for the diagnosis and therapy of brain diseases and cancer and, in addition, shall open up completely new possibilities in cardiac research.
Credit: PTB

Snap-shots of a diseased heart or deep insights into cancer cells – a 7-tesla magnetic resonance tomograph promises scientists novel possibilities. The magnetic field of this so-called ultra-high field magnetic resonance tomograph (MRT) is 140 000 times as strong as that of the Earth and can make the most minute structures of the human body visible.

This facilitates not only the development of possibilities for diagnosis and therapy in the case of brain and cancer diseases, but also opens up completely new possibilities, among other things, in cardiac research.

One of the project partners is the Physikalisch-Technische Bundesanstalt (PTB, the national German Metrology Institute), whose scientists want to explore the technical possibilities of the new device and make it useful for clinical application.

As the fourth 7-tesla MRT worldwide (after Boston, Pittsburgh and Paris), the Berlin System is equipped with an 8-channel transmitter system, and with this technology the cardiac imaging by means of 7-tesla MRT moves into the public eye for the first time. New research ground could also be broken in the representation of molecular processes in the body, for example in combating tumours. Bernd Ittermann, head of the Department of Medical Metrology at the PTB, explains: "So far there are only about 30 magnetic resonance tomographs with such a high magnetic field strength, and most of them are used for brain research". The new whole-body MRT at the Max Delbrück Center is to, however, have considerably more widespread use. The machine will provide pictures of extremely high resolution from the interior of the body. The researchers expect to receive insights into the development of diseases and the metabolic processes involved.

In clinics, MRT machines with 1.5 or 3 tesla (that is the unit for the magnetic flux) are customary. The 7-tesla tomograph will at first be purely a research instrument in order to explore the possibilities of the ultra-high-field magnetic resonance tomography. It is the only machine worldwide of the modern 7-tesla generation in which also a metrology institute is involved.

The stray magnetic field of the magnet, weighing 32 tonnes is so strong that all objects containing iron are strongly prohibited in its direct proximity. Only outside of a cage nearly five meters high and 14 meters long and made of 250 tonnes of steel is the field shield strong enough, for example, for the operation of computers.

The project partners are in addition to the Max Delbrück Center and the PTB, also the Berlin Charité, the Leibnizinstitut für Molekulare Pharmakologie (Leibniz Institute of Molecular Pharmacology) and the Siemens company.


Story Source:

The above story is based on materials provided by Physikalisch-Technische Bundesanstalt (PTB). Note: Materials may be edited for content and length.


Cite This Page:

Physikalisch-Technische Bundesanstalt (PTB). "Cardiac Imaging: 7-tesla Magnetic Resonance Tomograph Provides Sharper Pictures." ScienceDaily. ScienceDaily, 27 January 2009. <www.sciencedaily.com/releases/2009/01/090127083542.htm>.
Physikalisch-Technische Bundesanstalt (PTB). (2009, January 27). Cardiac Imaging: 7-tesla Magnetic Resonance Tomograph Provides Sharper Pictures. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2009/01/090127083542.htm
Physikalisch-Technische Bundesanstalt (PTB). "Cardiac Imaging: 7-tesla Magnetic Resonance Tomograph Provides Sharper Pictures." ScienceDaily. www.sciencedaily.com/releases/2009/01/090127083542.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) — The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) — Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) — America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
China's Ageing Millions Look Forward to Bleak Future

China's Ageing Millions Look Forward to Bleak Future

AFP (July 24, 2014) — China's elderly population is expanding so quickly that children struggle to look after them, pushing them to do something unexpected in Chinese society- move their parents into a nursing home. Duration: 02:07 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

    Health News

      Environment News

        Technology News



          Save/Print:
          Share:  

          Free Subscriptions


          Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

          Get Social & Mobile


          Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

          Have Feedback?


          Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
          Mobile iPhone Android Web
          Follow Facebook Twitter Google+
          Subscribe RSS Feeds Email Newsletters
          Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins