Exploiting nonlinear distortion to switch from black and white to colour in underwater acoustic imaging
When ultrasound propagates through water nonlinear effects come into play and distort the signal originally transmitted (Figure 1). The effect of this distortion can be seen as a transfer of energy around what is called “harmonic frequencies”. For example if the signal originally transmitted has…
CIUS fall conference day 2016
The second CIUS full-day conference held on 23 November 2016 in Trondheim, attracted near 80 participants representing CIUS researchers, partners, collaborators and international speakers. The day had a varied programme and ample opportunity for networking across work packages, institutions, and fields of speciality. CIUS director…
Improving quality of cardiac ultrasound images
Cardiovascular diseases (CVDs) are the number-one cause of death globally. An estimated 17.5 million people died from CVDs in 2012, 31% of all global deaths. One important factor in preventing cardiovascular disease, is early diagnosis using technologies such as ultrasound echocardiography. In this project, we…
Avoiding unnecessary coronary angiograms
Blogger: Bjørn Olav Haugen, Professor, Centre for Innovative Ultrasound Solutions, Department of circulation and medical imaging Angina is chest pain that occurs when the blood supply to the muscles of the heart is restricted. It usually happens because the coronary arteries supplying the heart become…
Interpreting ultrasound images with neural networks
Neural networks have recently achieved incredible results for recognising objects such as cats, coffee cups, cars and plants in photographs. These methods are already used by companies like Facebook and Google to identify faces, recognize voice commands and even enable self-driving cars. At the Centre…
Planning the direction for CIUS
45 people from both academia and the industry were present at the first meeting discussing the direction for half the different work packages at NTNUs new centre CIUS, a Centre for Innovative Ultrasound Solutions for health care, maritime, and oil & gas. – At this…