Table 3.
MDCT measurement.
| Characteristics (n, %) | Total N = 37 |
Type 1 N = 17 |
Type 2 N = 3 |
Type 3 N = 13 |
Type 4 N = 4 |
p |
|---|---|---|---|---|---|---|
| Valvular classification | ||||||
| Tricuspid valve | 33 (89.2) | 16 (94.1) | 3 (100.0) | 11 (84.6) | 3 (75.0) | 0.574 |
| Quadricuspid valve | 2 (5.4) | 1 (5.9) | 0 | 1 (7.7) | 0 | |
| Bicuspid valve | 2 (5.4) | 0 | 0 | 1 (7.7) | 1 (25.1) | |
| Measurement (diameter calculated by the perimeter, mm) | ||||||
| Annular circumference | 81.7 ± 6.8 | 80.6 ± 5.2 | 85.3 ± 4.7 | 80.8 ± 7.1 | 86.9 ± 11.3 | 0.280 |
| Annulus | 26.0 ± 2.2 | 25.6 ± 1.7 | 17.1 ± 1.5 | 15.7 ± 2.3 | 27.7 ± 3.6 | 0.284 |
| LVOT | 26.9 ± 2.9 | 26.2 ± 2.0 | 28.8 ± 2.4 | 26.5 ± 2.8 | 30.1 ± 4.9 ac | 0.053 |
| STJ Height | 25.67 ± 5.4 | 24.0 ± 3.2 | 30.9 ± 4.7 a | 27.5 ± 7.1 | 23.2 ± 4.0 | 0.078 |
| STJ | 35.7 ± 4.9 | 32.4 ± 2.7 | 35.1 ± 4.9 | 39.9 ± 4.7 a | 36.3 ± 2.8 | 0.000 |
| AA widest | 41.9 ± 6.2 | 38.6 ± 4.6 | 38.0 ± 4.7 | 47.2 ± 5.3 ab | 41.8 ± 5.5 | 0.000 |
| Right coronary sinus | 36.9 ± 4.5 | 35.2 ± 3.2 | 39.5 ± 7.9 | 38.6 ± 4.5 a | 36.6 ± 5.8 | 0.156 |
| Left coronary sinus | 37.6 ± 4.3 | 35.5 ± 2.9 | 42.1 ± 4.3 a | 39.4 ± 4.3 a | 37.5 ± 6.0 | 0.019 |
| Non-coronary sinus | 38.2 ± 4.1 | 36.3 ± 2.8 | 41.4 ± 5.8 a | 40.1 ± 4.4 a | 37.8 ± 3.7 | 0.037 |
| Left coronary height | 14.4 ± 4.0 | 14.3 ± 3.6 | 20.4 ± 4.2 a | 13.7 ± 3.7 | 12.7 ± 4.7 | 0.045 |
| Right coronary height | 18.6 ± 3.4 | 18.1 ± 3.0 | 22.3 ± 3.5 | 18.4 ± 4.0 | 19.0 ± 2.6 | 0.268 |
| Annulus angle | 49.7 ± 12.4 | 48.2 ± 9.0 | 49.3 ± 3.5 | 51.6 ± 17.4 | 50.3 ± 12.3 | 0.910 |
| >60° | 7 (18.9) | 1 (5.9) | 0 | 5 (38.5) | 1 (25.0) | 0.092 |
| 50°–60° | 12 (32.4) | 4 (23.5) | 1 (33.3) | 6 (46.2) | 1 (25.0) | |
| <50° | 18 (48.6) | 12 (70.6) | 2 (66.7) | 2 (15.4) | 2 (50.0) | |
| Dual-anchoring multiplane measurement (diameter calculated by the perimeter, mm) | ||||||
| Sup-2 mm | 26.2 ± 2.6 | 25.7 ± 1.7 | 27.5 ± 1.7 | 25.5 ± 2.3 | 29.3 ± 5.0 ac | 0.040 |
| Sup-2 mm | 26.7 ± 2.0 | 26.4 ± 1.6 | 27.9 ± 1.4 | 26.7 ± 2.3 | 26.8 ± 2.9 | 0.715 |
| Sup-4 mm | 28.3 ± 2.1 | 28.2 ± 1.8 | 29.4 ± 2.0 | 28.4 ± 2.5 | 27.0 ± 2.4 | 0.516 |
| Sup-6 mm | 29.6 ± 2.2 | 29.4 ± 2.0 | 31.1 ± 2.0 | 29.8 ± 2.2 | 28.0 ± 2.8 | 0.295 |
| Sup-8 mm | 30.5 ± 2.4 | 30.1 ± 1.7 | 31.8 ± 4.5 | 31.1 ± 2.5 | 28.8 ± 2.9 | 0.254 |
| Sup-10 mm | 31.2 ± 2.6 | 30.6 ± 1.8 | 32.4 ± 5.0 | 32.2 ± 2.6 | 30.0 ± 3.0 | 0.212 |
| Sup-min | 26.6 ± 2.0 | 26.4 ± 1.7 | 27.9 ± 1.4 | 26.7 ± 2.3 | 26.2 ± 2.9 | 0.686 |
| AA-30 mm | 37.7 ± 5.4 | 34.2 ± 2.8 | 36.1 ± 5.8 | 42.5 ± 5.2 ab | 38.5 ± 2.6 | 0.000 |
| AA-35 mm | 38.7 ± 5.4 | 35.3 ± 2.9 | 35.3 ± 4.0 | 43.6 ± 5.4 ab | 39.0 ± 2.7 c | 0.000 |
| AA-40 mm | 39.7 ± 5.4 | 36.6 ± 3.1 | 36.2 ± 3.8 | 44.6 ± 5.3 ab | 39.5 ± 3.4 | 0.000 |
| AA-45 mm | 40.6 ± 5.6 | 37.5 ± 3.6 | 36.9 ± 3.9 | 45.5 ± 5.4 ab | 40.7 ± 3.2 | 0.000 |
| AA-50 mm | 41.6 ± 6.1 | 38.0 ± 4.1 | 37.7 ± 3.8 | 46.3 ± 5.4 ab | 44.6 ± 5.9 a | 0.000 |
| AA-min | 37.5 ± 5.2 | 34.2 ± 2.8 | 34.9 ± 4.7 | 42.2 ± 4.8 ab | 37.9 ± 2.3 | 0.000 |
Note: MDCT = multidetector computed tomography; LVOT = left ventricular outflow tract; STJ = sinotubular junction; AA = ascending aorta. a: comparison between types 2–4 and type 1; b: comparison between types 3–4 and type 2; c: comparison between types 4 and 3, p < 0.05.