Pulse transition time in heamodynamic measurement: Methods, problems, hardware equipment and first results

This contribution deals with the Pulse Transition Time (PTT) as a marker that can predict some cardiovascular problems. The PTT is calculated from the ECG and PPG signals measured on a finger. The PTT is a parameter that is dependent mainly on aortic length (alternatively patient's height) and blood pressure. It means that there is no general criteria how to assess the PTT value without the knowledge of additional information about the patient. This contribution is focused on the hardware design and realization, the methodology of measurement and shows the first results of the PTT measurement. Data processing and their evaluation is described as well. It could be stated that the PTT is a valuable parameter for the cardiovascular system monitoring.