Fig. 1

Preoperative MDCT. Preoperative MDCT examination showing AVJ of 28.2 mm, Valsalva sinus of 38.4 mm, STJ of 36.1 mm, and ascending aorta of 40.1 mm, indicating aortic root to ascending aorta enlargement. The tricuspid valve geometric height at RCC, LCC, and NCC was 10.5 mm, 17.0 mm, and 17.0 mm, and free margins at RCC, LCC, and NCC were 30.4 mm, 29.4 mm, and 30.9 mm, respectively