Yonsei medical journal
Quantification of Aortic Cusp Parameters Using Computed Tomography in Valve-Sparing Aortic Root Replacement Surgery: A Prospective Study
By Kim HR, Yang DH and Kim JB.
Abstract
Purpose
Determining the feasibility of valve-sparing aortic root replacement (VSRR) requires accurate preoperative assessment of aortic valve cusp geometry. However, the reliability of computed tomography (CT) for measuring cusp parameters remains unclear. This study evaluated the agreement between CT-derived cusp measurements and intraoperative measurements and explored the potential of CT-based cusp asymmetry to predict intraoperative cusp plication.
Materials and methods
In this prospective study, 32 consecutive patients undergoing VSRR with the reimplantation technique were enrolled. Preoperative CT was used to measure cusp free margin length and geometric height. Agreement between CT-derived and intraoperative measurements was assessed using Bland-Altman analysis and intraclass correlation coefficients (ICCs). An exploratory analysis evaluated whether CT-derived cusp asymmetry predicted the need for intraoperative cusp plication.