How accurate is accurate enough? A brief overview on accuracy considerations in image-guided cardiac interventions

Image-guided interventions have revolutionized the development of minimally invasive surgical procedures, leading to reduced patient trauma, fewer risks and shorter recovery times. However, one of the most frequently posed question with regards to an image guidance system is how accurate it is. In this work we provide a brief overview on accuracy considerations from our perspective on cardiac image-guided procedures: what are the clinically-imposed accuracy constraints, how do these measure against the limitations of the image-guidance system, and how can surgeons directly benefit from real-time accuracy feedback to ensure optimal navigation at all times during the intervention?