Transcatheter aortic valve implantation is a minimal invasive method of aortic valve replacement in high-risk patients. It has been present in cardiac surgery over a decade and achieves unexpected results. Its development is based not only on a surgeon's skills but also on the improvement of procedural technology and development of diagnostic tools. This approach to the treatment requires cooperation of many subspecialties of medicine if the goal is successful performance and increased quality of patient's life. Apart from the performance of the procedure, it is very important to make a good selection of patients who meet the criteria for suitable and indicated procedure. In this paper we will show a complex network of candidate selection for TAVI procedure. Multimodal access indicates preoperative evaluation which requires synergy of diagnostic tools spectrum, primarily from -cardiology internist domain and experienced radiologist with excellent the knowledge in cardiovascular anatomy and pathology. We will first discuss the procedure indications, patient’s structure and stages of the aortic valve disease, and then focus on available imaging methods. We will outline observed deficiencies in a patient's evaluation and oversights which should be prevented in the future. In the end we will pay attention to two common comorbidities which are associated with this target population of cardiac patients.