Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

ultraMRI - Ultrasonic radiation pressure induced contrast in MR imaging

30.06.2011
Two screening tools for breast cancer are broadly utilized. The breast examination is performed by the gynecologist or

the patient herself. Each breast is visually and haptically examined for possible lumps, distortions or swellings. For some reasons, notably the limited human tactile sense, this tool is hardly capable for reliable early recognition of breast cancer. The widely-used mammography promises to be a more approved method and is commonly recommended for women at the age of 40 or older. However, also mammography suffers from several shortcomings. Often the

patients needlessly become concerned due to false positives. On the other hand, false negatives frequently yield fatal consequences. For most patients the compression panels are at least inconvenient or even painful, the X-ray dose causes further risks. Moreover, mammography is not feasible for most of younger women because of their comparably high breast tissue density. Recently MRI examination was suggested as a new standard tool for early breast cancer diagnosis. Naturally no radiation exposure occurs. However, this examination relies on the application of contrast agents and it is hard to interpret the image data even for experienced radiologists. Invention: The Helmholtz-Institut für Strahlen- und Kernphysik at the University of Bonn recently developed a novel method which combines the benefits of tactile and MRI breast examination. The innovative ultraMRI method relies on inducing MRI contrast by ultrasonic radiation pressure. The radiation force of very short ultrasonic pulses causes a breast tissue displacement. Since healthy tissue and artifacts, e. g. calcifications or carcinomas, possess different mechanical properties, they suffer a different displacement. This is also the basis for the common manual examination. However, ultraMRI is much more sensitive and provides a much better spatial resolution: Even tiny displacement differences are easily detected in MR phase images and precisely localized by the corresponding MR amplitude images. As a result, ultraMRI provides a novel straightforward tool for early breast cancer diagnosis.

Further Information: PDF

PROvendis GmbH
Phone: +49 (0)208/94105 10

Contact
Dipl.-Ing. Alfred Schillert

info@technologieallianz.de | TechnologieAllianz e.V.
Further information:
http://www.technologieallianz.de/angebote.php?sort=sag&id=2421&lang=en
http://www.technologieallianz.de

More articles from Technology Offerings:

nachricht Microarray to determine responsiveness of tumors to antiangiogenic treatment
06.12.2016 | TechnologieAllianz e.V.

nachricht Peltier Adsorption Trap
29.11.2016 | TechnologieAllianz e.V.

All articles from Technology Offerings >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Predicting unpredictability: Information theory offers new way to read ice cores

07.12.2016 | Earth Sciences

Sea ice hit record lows in November

07.12.2016 | Earth Sciences

New material could lead to erasable and rewriteable optical chips

07.12.2016 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>