3 D printing is a new technology developed in recent years that combines computer 3 D graph design with layer-by-layer printing. It can vividly present any structural features almost identical to those of the actual objects. Structural heart diseases(SHDs) are a general term referring to diseases related to the structure of the heart and large blood vessels,which means its core pathological changes are structural ones. Therefore, understanding and analysis of them depend greatly on multi-dimensional thinkin...