Coronary heart disease is still the leading cause of death worldwide. So far there was no simple and accurate test for fast detection of live threatening narrowing of the heart arteries. Cardio Explorer is the first simple AI based cardiovascular diagnostic test for current detection/exclusion of live threatening constriction of the heart arteries (reason for heart infarction). Cardio Explorer has been validated in three clinical studies and is more accurate than the often applied stress ECG. Cardio Explorer has received the Swiss Biolabs Award 2018 and the second prize at the IFAS Innovation Challenge 2018.