Table 2.
The average quantitative MR parameters (plus median and 95% CI) calculated using the manual and automatic segmentations. Rad 1 and Rad 2 refers to ROIs outlined by two radiologists. CNN 1 and CNN 2 indicates the ROIs generated by the CNNs developed using the ROIs provided by the first and second radiologist, respectively. MM – medial meniscus, LM – lateral meniscus.
| Rad 1 | Rad 2 | CNN 1 | CNN 2 | ||
|---|---|---|---|---|---|
| T1 [ms] | MM+LM | 959.4 (961.8, 947.9–970.9) | 967.0 (979.9, 954.8–979.3) | 958.9 (960.3, 947.5–970.4) | 963.1 (962.6, 951.6–974.6) |
| MM | 969.9 (961.6, 955.3–984.6) | 973.5 (975.9, 957.1–989.9) | 964.4 (957.3, 950.3–978.5) | 967.6 (957.9, 953.2–981.9) | |
| LM | 947.5 (961.8, 929.5–965.4) | 959.7 (980.9, 941.2–978.3) | 952.7 (966.3, 934.2–971.3) | 958.1 (975.9, 939.5–976.7) | |
| T1ρ [ms] | MM+LM | 27.5 (27.4, 26.9–28.0) | 28.0 (28.0, 27.5–28.6) | 27.3 (27.4, 26.8–27.9) | 27.8 (27.8, 27.2–28.3) |
| MM | 27.9 (28.0, 27.1–28.8) | 28.5 (28.5, 27.7–29.2) | 27.7 (27.8, 27.0–28.5) | 28.0 (28.0, 27.3–28.7) | |
| LM | 26.9 (26.6, 26.1–27.7) | 27.5 (27.3, 26.7–28.4) | 26.9 (26.6–26.1–27.6) | 27.5 (27.4, 26.7–28.3) | |
| T2* [ms] | MM+LM | 9.8 (9.0, 9.3–10.3) | 9.9 (9.0, 9.4–10.4) | 9.6 (9.0, 9.1–10.0) | 9.9 (9.1, 9.4–10.4) |
| MM | 9.6 (9.0, 9.0–10.1) | 9.7 (9.1, 9.2–10.3) | 9.4 (9.1, 8.9–9.9) | 9.6 (9.2, 9.1–10.1) | |
| LM | 10.1 (8.9, 9.2–10.9) | 10.1 (8.8, 9.3–10.9) | 9.7 (8.7, 8.9–10.5) | 10.2 (9.0, 9.3–11.0) | |
| Area [mm2] | MM+LM | 60.6 (57.5, 57.4–63.9) | 71.8 (66.1, 67.5–76.1) | 64.0 (59.5, 60.6–67.3) | 68.8 (63.5, 64.7–72.8) |
| MM | 65.7 (63.3, 60.6–70.9) | 79.2 (76.6, 72.4–85.9) | 68.6 (65.2, 63.1–74.0) | 73.4 (68.6, 66.8–79.8) | |
| LM | 55.0 (52.5, 51.4–58.7) | 63.7 (61.2, 59.2–68.3) | 58.9 (56.2, 55.4–62.3) | 63.8 (60.0, 59.3–68.3) | |