Table 2.
T2 values for each assessment with 95% confidence intervals
| Comparison of T2 relaxation time measurements | ||||
|---|---|---|---|---|
| T2-GRAPPATINI (CI95) | T2-MESE (CI95) | T2-EVEN (CI95) | T2-WO1ST (CI95) | |
| Lumbar disc herniation | ||||
| Nucleus pulposus | ||||
| Normal (n = 204) | 101.3 (98.8–103.7) | 116.1 (112.6–119.6) | 103.1 (100.3–106.0) | 104.0 (101.2–106.9) |
| Bulging (n = 46) | 70.9 (64.9–76.9) | 81.7 (74.5–88.9) | 73.6 (67.4–79.9) | 74.2 (67.9–80.4) |
| Herniation (n = 40) | 67.8 (63.3–72.3) | 72.8 (69.2–76.4) | 65.9 (62.7–69.1) | 66.4 (63.2–69.6) |
| Mean (n = 290) | 91.8 (89.2–94.5) | 104.7 (101.3–108.1) | 93.3 (90.5–96.2) | 94.1 (91.2–97.0) |
| Annulus fibrosus | ||||
| Normal (n = 204) | 47.0 (46.0–48.0) | 45.6 (44.1–47.1) | 42.5 (41.0–43.9) | 43.9 (42.3–45.5) |
| Bulging (n = 46) | 48.1 (45.8–50.4) | 48.6 (46.1–51.0) | 45.4 (43.1–47.6) | 47.0 (44.6–49.5) |
| Herniation (n = 40) | 50.7 (48.4–53.1) | 49.5 (46.0–53.0) | 45.6 (42.5–48.7) | 46.7 (43.4–50.0) |
| Mean (n = 290) | 47.7 (46.8–48.5) | 46.6 (45.4–47.8) | 43.4 (42.2–44.5) | 44.8 (43.5–46.0) |
| Annular tear | ||||
| Nucleus pulposus | ||||
| No tear (n = 258) | 95.6 (93.1–98.2) | 109.2 (105.8–112.6) | 97.2 (94.3–100.1) | 98.1 (95.2–100.9) |
| Tear (n = 32) | 61.0 (57.7–64.3) | 68.3 (64.3–72.3) | 62.0 (58.5–65.6) | 62.3 (58.8–65.9) |
| Mean (n = 290) | 91.8 (89.2–94.5) | 104.7 (101.3–108.1) | 93.3 (90.5–96.2) | 94.1 (91.2–97.0) |
| Annulus fibrosus | ||||
| No tear (n = 258) | 47.4 (46.4–48.3) | 45.8 (44.4–46.9) | 42.5 (41.3–43.7) | 43.9 (42.6–45.2) |
| Tear (n = 32) | 50.1 (48.0–52.2) | 54.2 (50.2–58.2) | 50.4 (46.8–54.0) | 51.8 (48.0–55.6) |
| Mean (n = 290) | 47.7 (46.8–48.5) | 46.6 (45.4–47.8) | 43.4 (42.2–44.5) | 44.8 (43.5–46.0) |
| Pfirrmann classification | ||||
| Nucleus pulposus | ||||
| I (n = 151) | 104.7 (102.1–107.3) | 120.4 (116.5–124.3) | 106.8 (103.6–109.9) | 107.8 (104.6–110.9) |
| II (n = 55) | 97.1 (92.8–101.5) | 109.9 (104.3–115.5) | 98.4 (93.8–103.1) | 99.1 (94.4–103.8) |
| III (n = 35) | 73.0 (68.7–77.3) | 81.2 (75.8–86.6) | 73.3 (68.8–77.9) | 73.8 (69.3–78.3) |
| IV (n = 48) | 59.7 (57.5–61.8) | 67.2 (64.8–69.7) | 60.5 (58.4–62.6) | 61.1 (59.0–63.2) |
| V (n = 1) | 58.3 | 61.0 | 53.5 | 55.0 |
| Annulus fibrosus | ||||
| I (n = 151) | 46.7 (45.5–47.9) | 44.6 (43.1–46.2) | 41.7 (40.1–43.3) | 43.0 (41.3–44.7) |
| II (n = 55) | 47.4 (45.1–49.8) | 46.7 (43.5–49.8) | 43.5 (40.5–46.6) | 45.5 (42.0–49.0) |
| III (n = 35) | 48.7 (46.5–51.0) | 48.2 (45.6–50.9) | 44.7 (42.3–47.1) | 45.6 (43.2–48.1) |
| IV (n = 49) | 50.2 (48.2–52.2) | 51.7 (48.3–55.0) | 47.6 (44.7–50.4) | 49.0 (46.0–51.9) |
| V (n = 0) | 47.0 | 43.5 | 39.0 | 39.5 |