Different systems have been used and details of the technique vary. In one example, an annuloplasty ring or band is delivered through a catheter and implanted around the circumference, or annulus, of the tricuspid valve. A size adjustment tool is used to contract the device, which reduces the tricuspid annular diameter and brings the valve leaflets together. When the appropriate amount of reduction has been achieved, the implant is detached from the delivery system, which is then removed. In other systems, sutures are used to either exclude the posterior leaflet and create a functional bicuspid valve or to reduce the area of the tricuspid annulus. Adequate reduction of tricuspid regurgitation is assessed using echocardiography.