More than 11 million new cases of cardiovascular disease are reported annually in Europe. Also in Poland, these diseases constitute a large social problem and are the greatest threat to the health of the inhabitants of our country. One of the basic diagnostic tools in cardiology is an ECG - a non-invasive test that shows the bioelectric activity of the heart. It is the ECG records that provide valuable data for scientists from Gdańsk University of Technology who want to use sophisticated mathematics to assist cardiologists in even more effective diagnostics.
The ECG records of a healthy person and a sick person look different. It is, of course, the doctor's job to spot these, sometimes quite subtle, differences. However, the electrocardiogram provides a great deal of data. Some of them are not analyzed as part of standard medical procedures because more advanced methods are needed for their characterization. This is where mathematics comes in handy, and more precisely - the theory of chaos and the theory of dynamical systems.