ISB

by Yucel Karabiyik, researcher at CIUS Physical examination at the doctor’s office often involves palpation where the physician tries to feel the location, size,…

“I guess that was my last remark.” from the last challenger. 4.5 years summarized, questioned and discussed over three hours, and I was finally finished.

A diver ascending from a dive too quickly can be viewed as a bottle of champagne being opened: a pressure differential appears between the gas phase dissolved within the diver’s tissues (the champagne inside the bottle) and the environment’s gas phase (the air now in contact with the champagne). As a result, the gas dissolved will expand and form bubbles until a state of equilibrium is achieved. However, an important difference is to be made between the diver and the bottle of champagne: bubbles are required for good champagne, but not so much for a healthy diver…

By Marcus Wild Within the maritime industry, ships use SONAR (Sound Navigation and Ranging) systems in order to make maps of the seabed. The…

Tormod Njølstad (59) is hired as Innovation Manager in the Ultrasound group at ISB by September 2018.

  By Tormod Njølstad, Innovation Manager in Ultrasound, NTNU. Twenty-nine experts and researchers associated with CIUS participated at IUS, the IEEE International Ultrasound Symposium…

Children with dysfunction of the right heart chamber (ventricle), which pumps blood to the lungs, have lower tolerance to exercise and at risk of sudden cardiac death in more severe cases. This dysfunction usually sets in progressively and detection at earlier stages is crucial to guiding therapies and interventions that improve symptoms and survival. New ultrasound techniques, makes it easier detect and quantify the problem.

Aortic valve stenosis is a narrowing of the valve that separates the left ventricle from the aorta. A reduced opening increases the effort required by the left ventricle to pump blood. Being a degenerative disease, patients with aortic stenosis must undergo a clinical follow-up, which is usually performed by ultrasound. At the Centre of Innovative Ultrasound Solutions (CIUS), we are developing a new method that exploits 3-D high frame-rate imaging to increase the degree of automation in aortic stenosis flow measurements. The goal is to speed up the workflow in the clinics and increase the accuracy of measurements.

How do you check that a petroleum well is leak-proof, so that it cannot endanger the environment or the platform staff? To do so, you’d have to investigate a narrow hole with a diameter of maybe 30 cm, kilometers below the ground, where the temperatures can reach well above 100°C and the pressure is crushing. This may sound difficult, and it is! Even so, the petroleum industry has been doing things like these for almost a century, and over the past four decades they have increasingly been using ultrasonic techniques.