Three dimensional reconstruction (shape and motion) of tricuspidannulus in normals and in patients after tricuspid annuloplasty with aflexible ring

摘要

Knowledge of tricuspid annular shape, size and motion is criticalfor surgical repair of the tricuspid valve. However thesecharacteristics for the valve are poorly understood. The authorsreconstructed the three dimensional shape and motion of the tricuspidannulus in 2 normals and 2 patients who underwent tricuspid valve repairusing a flexible annuloplasty ring. The data were acquired with EKG andrespiratory gating. The algorithm allows for quantitative analysis ofannular area and excursion over a cardiac cycle. The preliminary resultsshow that the shape and motion of tricuspid annulus is preserved by theflexible tricuspid valve annuloplasty ring