Coroscope™ CT-MyoStrain & 4D-CT-flow is a total innovative product that novel applying real-time registration techniques and simulation technology to accurately evaluate myocardial functions, such as myocardial strain, ejection fraction and mitral-aortic flow reversal diagnosis, etc. The system can also aid the planning of cardiac surgery, like transcatheter aortic valve replacement (TAVR) and left atrial appendage occlusion (LAAO), etc.