Recently, Fudan University Zhongshan Hospital cardiac surgery group in the country for the first time the 3D printing technology for Transcatheter aortic valve replacement surgery (TAVI), a successful example of the aortic valve with severe stenosis and 77-year-old patient regurgitation implemented TAVI planning and navigation. Currently in the medical field, 3D printing has been a professional to begin clinical use in orthopedics, dentistry, but in Cardiac Surgery has just started, only a very few reports abroad. TAVI with conventional open heart surgery are very different, the doctor can not look at the whole picture of heart surgery, but can not cut the heart to observe the internal fine structure, navigation is critical preoperative imaging evaluation and surgery. But regardless of CT, MRI, B ultrasonic examination can only provide a two-dimensional visual field on the screen, the surgeon before surgery needs careful study and measurement of cardiac and aortic imaging data of the patient, and in their minds that secondary processing, reconstruction founded body configuration, thus choose the right type of artificial valve during surgery, to determine the projection angle DSA tube, planning catheter into the line to determine the position of the valve is released.The 3D printing technology can be a two-dimensional image data converted into the patient's life and a life-size heart model presented in front of the physician, and provide a wealth of information on more traditional imaging is difficult to show, which will greatly simplify these complex processes and standardization, making surgery more precise safety. Before surgery, hospital minimally invasive cardiac surgery team and heart ultrasound room and imaging department collaboration, carefully study the feasibility of TAVI Fusion 3D printing technology, and cardiac surgery patients collected the super high-resolution CT and cardiac imaging, with 3D printing processing software, for printing a complete 3D model of the heart and aorta, and accordingly developed a careful and detailed surgical planning and implementation. Surgery, cardiac 科魏 to deputy chief physician of the original surgical procedures further simplified, took only one hour that is the successful completion of TAVI, patient X-ray exposure time shorter than the previous half, one-third reduction in the amount of contrast agent, surgery, surgery very stable vital signs, review show prosthetic valve positioning accuracy, is working properly.