With the introduction of venous mapping methods prior to the placement of a central venous catheter (RaPeVA, RaCeVA, and RaFeVA), the evolution of ultrasound techniques has given a fundamental role to the choice of vein. In fact, the measurement of this vein (obtained...

With the introduction of venous mapping methods prior to the placement of a central venous catheter (RaPeVA, RaCeVA, and RaFeVA), the evolution of ultrasound techniques has given a fundamental role to the choice of vein. In fact, the measurement of this vein (obtained...