5 | CONCLUSION
Stepwise cardiac computed tomography manipulation to mimic trans-esophageal echocardiography is the last piece of the puzzle to achieve mental co-registration of the three important imaging modalities. With a high quality electrocardiogram gated cardiac CT, we are enabled to foresee the fluoroscopy projections and TEE images in a preoperative rehearsal to decide the interventional fluoroscopy projection angles according to the patient-specific conditions, and to assist the interventional echocardiographer to plan the imaging.