A method that transmits new and more advanced ultrasound signals is being tested in Trondheim. The chances of discovering and diagnosing tumors in the prostate and breast will improve significantly.
- The first clinical testing has been done, and the results so far are promising, says Rune Hansen. He is a researcher at Norwegian University of Science and Technology (NTNU) and at SINTEF Health Research.
A veil of noise
The ultrasound images that are processed using current methods are often strongly hampered by a kind of noise that originates from sound signals that move back and forth between reflectors that are dissimilar in strength. This is called ‘multiple echo’ or ‘reverberations’ in technical terms. This is particularly a problem when the signal is being sent through the ‘body wall’ in order to image internal organs in the body.
The sound signals will ricochet back and forth between layers of fat, muscles and connective tissue in the body wall, and this results in misty ultrasound images.
The new method that is being processed is far more detailed, and it will be possible to separate details in parts of the body such as the liver, prostate and breast. This makes it easier to discover changes in body tissue, and he chance of discovering cancer tumors at an early stage will increase significantly.
In addition to giving a more detailed images of body tissue, the new ultrasound method is also much better at discovering and reading contrast agents. Such liquid is given intravenously and this makes perfusion imaging possible in organs that are suspected being cancerous.
- Tumors generate their own veins in order to obtain sufficient oxygen and nutrients so they are able to grow. This method has the potential to discover these changes in micro circulation much earlier than at present, says RuneHansen.
Three forms of cancer where the new method will make it possible to discover cancers at an earlier stage are prostate, breast and thyroid gland cancers. Another area of application is diagnoses of cardiovascular diseases like heart diseases and plaque/stenoses/anurism in large arteries.
Transmission in two signals
The newly developed method has been given the name ‘SURF imaging’ – Second order UltRasound Field imaging.
When one applyes the traditional method, an imaging pulse is inserted, and the subsequent ‘echo’ that is heard is the basis of the ultrasound image. The important new factor is that the imaging pulse is accompanied by another signal.
Rune Hansen is a part of a team under Professor Bjørn Angelsen, who is one of the pioneers in ultrasound research in Trondheim. Professor Angelsen assumes that the method will be ready for normal use on the first patients in about a year’s time.
By Tore Oksholen/Gemini
Nina Tveter | alfa
3-D printed kidney phantoms aid nuclear medicine dosing calibration
06.12.2016 | Society of Nuclear Medicine
UTSA study describes new minimally invasive device to treat cancer and other illnesses
02.12.2016 | University of Texas at San Antonio
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:...
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...
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...
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...
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,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
06.12.2016 | Materials Sciences
06.12.2016 | Medical Engineering
06.12.2016 | Power and Electrical Engineering