VSL’s flow department is not only addressing measurement challenges for water, oil, natural gas and other fluids through pipelines made by man. It is also involved in making very small blood flows through the heart muscle in the human body measurable.
A good example is the detection of a possible heart attack. In the period prior to a heart attack, the blood flow or perfusion through the heart muscle arteries is decreasing.
This can be measured with devices like MRI, PET or CT scanners from different manufacturers using different software.
In order to make all the measurement results quantitatively (and not only qualitatively) comparable and metrologically traceable ‘a medical phantom’ was developed in a joint effort with several European partners in the EMPIR project ‘Metrology for Multi-Modality Imaging of Impaired Tissue Perfusion’ (https://www.ptb.de/empir2018/perfusimaging/home/).
The phantom simulates the human heart including the arteries of the heart muscle.
VSL provided advice on its geometry in order to achieve the desired flow pattern, performed CFD simulations and studied different mathematical models that can be used to derive flow rates from a set of MRI images. A scientific publication presenting the phantom and discussing some mathematical models was recently published and can be found here: