| Variables . | Dissection type . | P-value . | FL thrombosis status . | P-value . | ||
|---|---|---|---|---|---|---|
| rTAAD (n = 20) . | TBAD (n = 13) . | Patent (n = 21) . | Partially thrombosed (n = 12) . | |||
| Quantitative haemodynamics of the TL, median (IQR) | ||||||
| TL gross flow (ml/s) | 48.7 (19.3–55.5) | 35.4 (34.0–46.2) | 0.81 | 47.4 (23.3–59.5) | 39.5 (32.7–47.4) | 0.57 |
| TL average velocity (cm/s) | 12.7 (7.1–21.2) | 8.1 (6.5–10.9) | 0.04 | 9.0 (7.2–13.8) | 8.4 (6.5–11.1) | 0.39 |
| TL regurgitant fraction (%) | 17.5 (8.6–22.2) | 15.6 (9.1–22.3) | 0.60 | 17.5 (9.1–25.8) | 11.7 (8.1–16.1) | 0.08 |
| Quantitative haemodynamics of the FL, median (IQR) | ||||||
| FL gross flow (ml/s) | 30.1 (13.8–66.7) | 19.1 (10.4–31.4) | 0.19 | 25.5 (15.4–65.2) | 22.7 (9.7–31.9) | 0.26 |
| FL average velocity (cm/s) | 4.4 (3.2–5.7) | 3.3 (2.3–5.4) | 0.35 | 4.7 (3.3–5.9) | 3.0 (2.2–4.8) | 0.03 |
| FL regurgitant fraction (%) | 61.2 (48.8–68.4) | 75.8 (52.5–86.4) | 0.27 | 62.4 (46.6–79.8) | 72.4 (59.6–82.6) | 0.18 |
| Visual grading of turbulent flow in the FL | ||||||
| Helix grade = 0, n (%) | 10 (50) | 5 (39) | 12 (57) | 3 (25) | ||
| Helix grade = 1, n (%) | 3 (15) | 3 (23) | 1 (5) | 5 (42) | ||
| Helix grade = 2, n (%) | 7 (35) | 5 (39) | 0.73 | 8 (38) | 4 (33) | 0.03 |
| Helix grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.65 | 0 (0–2) | 1 (0.75–2) | 0.37 |
| Vortex grade = 0, n (%) | 10 (50) | 5 (39) | 10 (48) | 5 (42) | ||
| Vortex grade = 1, n (%) | 2 (10) | 2 (15) | 0 (0) | 4 (33) | ||
| Vortex grade = 2, n (%) | 8 (40) | 6 (46) | 0.79 | 11 (52) | 3 (25) | 0.02 |
| Vortex grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.61 | 2 (0–2) | 1 (0–1.25) | 0.57 |
| Variables . | Dissection type . | P-value . | FL thrombosis status . | P-value . | ||
|---|---|---|---|---|---|---|
| rTAAD (n = 20) . | TBAD (n = 13) . | Patent (n = 21) . | Partially thrombosed (n = 12) . | |||
| Quantitative haemodynamics of the TL, median (IQR) | ||||||
| TL gross flow (ml/s) | 48.7 (19.3–55.5) | 35.4 (34.0–46.2) | 0.81 | 47.4 (23.3–59.5) | 39.5 (32.7–47.4) | 0.57 |
| TL average velocity (cm/s) | 12.7 (7.1–21.2) | 8.1 (6.5–10.9) | 0.04 | 9.0 (7.2–13.8) | 8.4 (6.5–11.1) | 0.39 |
| TL regurgitant fraction (%) | 17.5 (8.6–22.2) | 15.6 (9.1–22.3) | 0.60 | 17.5 (9.1–25.8) | 11.7 (8.1–16.1) | 0.08 |
| Quantitative haemodynamics of the FL, median (IQR) | ||||||
| FL gross flow (ml/s) | 30.1 (13.8–66.7) | 19.1 (10.4–31.4) | 0.19 | 25.5 (15.4–65.2) | 22.7 (9.7–31.9) | 0.26 |
| FL average velocity (cm/s) | 4.4 (3.2–5.7) | 3.3 (2.3–5.4) | 0.35 | 4.7 (3.3–5.9) | 3.0 (2.2–4.8) | 0.03 |
| FL regurgitant fraction (%) | 61.2 (48.8–68.4) | 75.8 (52.5–86.4) | 0.27 | 62.4 (46.6–79.8) | 72.4 (59.6–82.6) | 0.18 |
| Visual grading of turbulent flow in the FL | ||||||
| Helix grade = 0, n (%) | 10 (50) | 5 (39) | 12 (57) | 3 (25) | ||
| Helix grade = 1, n (%) | 3 (15) | 3 (23) | 1 (5) | 5 (42) | ||
| Helix grade = 2, n (%) | 7 (35) | 5 (39) | 0.73 | 8 (38) | 4 (33) | 0.03 |
| Helix grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.65 | 0 (0–2) | 1 (0.75–2) | 0.37 |
| Vortex grade = 0, n (%) | 10 (50) | 5 (39) | 10 (48) | 5 (42) | ||
| Vortex grade = 1, n (%) | 2 (10) | 2 (15) | 0 (0) | 4 (33) | ||
| Vortex grade = 2, n (%) | 8 (40) | 6 (46) | 0.79 | 11 (52) | 3 (25) | 0.02 |
| Vortex grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.61 | 2 (0–2) | 1 (0–1.25) | 0.57 |
4D flow MRI: four-dimensional flow magnetic resonance imaging; FL: false lumen; IQR: interquartile range; rTAAD: repaired type A aortic dissection; TBAD: type B aortic dissection; TL: true lumen.
| Variables . | Dissection type . | P-value . | FL thrombosis status . | P-value . | ||
|---|---|---|---|---|---|---|
| rTAAD (n = 20) . | TBAD (n = 13) . | Patent (n = 21) . | Partially thrombosed (n = 12) . | |||
| Quantitative haemodynamics of the TL, median (IQR) | ||||||
| TL gross flow (ml/s) | 48.7 (19.3–55.5) | 35.4 (34.0–46.2) | 0.81 | 47.4 (23.3–59.5) | 39.5 (32.7–47.4) | 0.57 |
| TL average velocity (cm/s) | 12.7 (7.1–21.2) | 8.1 (6.5–10.9) | 0.04 | 9.0 (7.2–13.8) | 8.4 (6.5–11.1) | 0.39 |
| TL regurgitant fraction (%) | 17.5 (8.6–22.2) | 15.6 (9.1–22.3) | 0.60 | 17.5 (9.1–25.8) | 11.7 (8.1–16.1) | 0.08 |
| Quantitative haemodynamics of the FL, median (IQR) | ||||||
| FL gross flow (ml/s) | 30.1 (13.8–66.7) | 19.1 (10.4–31.4) | 0.19 | 25.5 (15.4–65.2) | 22.7 (9.7–31.9) | 0.26 |
| FL average velocity (cm/s) | 4.4 (3.2–5.7) | 3.3 (2.3–5.4) | 0.35 | 4.7 (3.3–5.9) | 3.0 (2.2–4.8) | 0.03 |
| FL regurgitant fraction (%) | 61.2 (48.8–68.4) | 75.8 (52.5–86.4) | 0.27 | 62.4 (46.6–79.8) | 72.4 (59.6–82.6) | 0.18 |
| Visual grading of turbulent flow in the FL | ||||||
| Helix grade = 0, n (%) | 10 (50) | 5 (39) | 12 (57) | 3 (25) | ||
| Helix grade = 1, n (%) | 3 (15) | 3 (23) | 1 (5) | 5 (42) | ||
| Helix grade = 2, n (%) | 7 (35) | 5 (39) | 0.73 | 8 (38) | 4 (33) | 0.03 |
| Helix grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.65 | 0 (0–2) | 1 (0.75–2) | 0.37 |
| Vortex grade = 0, n (%) | 10 (50) | 5 (39) | 10 (48) | 5 (42) | ||
| Vortex grade = 1, n (%) | 2 (10) | 2 (15) | 0 (0) | 4 (33) | ||
| Vortex grade = 2, n (%) | 8 (40) | 6 (46) | 0.79 | 11 (52) | 3 (25) | 0.02 |
| Vortex grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.61 | 2 (0–2) | 1 (0–1.25) | 0.57 |
| Variables . | Dissection type . | P-value . | FL thrombosis status . | P-value . | ||
|---|---|---|---|---|---|---|
| rTAAD (n = 20) . | TBAD (n = 13) . | Patent (n = 21) . | Partially thrombosed (n = 12) . | |||
| Quantitative haemodynamics of the TL, median (IQR) | ||||||
| TL gross flow (ml/s) | 48.7 (19.3–55.5) | 35.4 (34.0–46.2) | 0.81 | 47.4 (23.3–59.5) | 39.5 (32.7–47.4) | 0.57 |
| TL average velocity (cm/s) | 12.7 (7.1–21.2) | 8.1 (6.5–10.9) | 0.04 | 9.0 (7.2–13.8) | 8.4 (6.5–11.1) | 0.39 |
| TL regurgitant fraction (%) | 17.5 (8.6–22.2) | 15.6 (9.1–22.3) | 0.60 | 17.5 (9.1–25.8) | 11.7 (8.1–16.1) | 0.08 |
| Quantitative haemodynamics of the FL, median (IQR) | ||||||
| FL gross flow (ml/s) | 30.1 (13.8–66.7) | 19.1 (10.4–31.4) | 0.19 | 25.5 (15.4–65.2) | 22.7 (9.7–31.9) | 0.26 |
| FL average velocity (cm/s) | 4.4 (3.2–5.7) | 3.3 (2.3–5.4) | 0.35 | 4.7 (3.3–5.9) | 3.0 (2.2–4.8) | 0.03 |
| FL regurgitant fraction (%) | 61.2 (48.8–68.4) | 75.8 (52.5–86.4) | 0.27 | 62.4 (46.6–79.8) | 72.4 (59.6–82.6) | 0.18 |
| Visual grading of turbulent flow in the FL | ||||||
| Helix grade = 0, n (%) | 10 (50) | 5 (39) | 12 (57) | 3 (25) | ||
| Helix grade = 1, n (%) | 3 (15) | 3 (23) | 1 (5) | 5 (42) | ||
| Helix grade = 2, n (%) | 7 (35) | 5 (39) | 0.73 | 8 (38) | 4 (33) | 0.03 |
| Helix grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.65 | 0 (0–2) | 1 (0.75–2) | 0.37 |
| Vortex grade = 0, n (%) | 10 (50) | 5 (39) | 10 (48) | 5 (42) | ||
| Vortex grade = 1, n (%) | 2 (10) | 2 (15) | 0 (0) | 4 (33) | ||
| Vortex grade = 2, n (%) | 8 (40) | 6 (46) | 0.79 | 11 (52) | 3 (25) | 0.02 |
| Vortex grade (0–2), median (IQR) | 0.5 (0–2) | 1.0 (0–2) | 0.61 | 2 (0–2) | 1 (0–1.25) | 0.57 |
4D flow MRI: four-dimensional flow magnetic resonance imaging; FL: false lumen; IQR: interquartile range; rTAAD: repaired type A aortic dissection; TBAD: type B aortic dissection; TL: true lumen.
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