Table 3.
Equivalence of (A) cartilage volume (VC) and (B) mean cartilage thickness over the total area of bone (ThCtAB.Me) within each acquisition and plate combination by analysis team. P-values are from mixed model for actual values of cartilage volume including segmentation team and sequence and team by sequence interactions.
| (A) Cartilage Volume (VC) | |||||||
|---|---|---|---|---|---|---|---|
| Cartilage Plate |
Analysis team |
FLASH | DESS-MPR | DESS | FLASH vs DESS- MPR |
FLASH vs DESS |
DESS- MPR vs DESS |
| Mean VC (mm3) (SD) |
Mean VC (mm3) (SD) |
Mean VC (mm3) (SD) |
P-value | P-value | P-value | ||
| MT | A | 1855 (619) | 1637 (511) | 1777 (528) | <0.01 | 0.18 | 0.05 |
| B | 2255 (621) | 2103 (616) | 2121 (660) | <0.01 | 0.02 | 0.75 | |
| C | 2243 (594) | 2156 (589) | 2116 (549) | 0.13 | 0.03 | 0.75 | |
| Pooled A–C | 2118 (633) | 1973 (613) | 2004 (591) | <0.01 | <0.01 | 0.20 | |
| E | 1516 (432) | 1666 (478) | 2591 (718) | 0.01 | <0.01 | <0.01 | |
| Pooled A–E | 1967 (641)* | 1892 (597)* | 2151 (671)* | 0.02 | <0.01 | <0.01 | |
| Acquisition by team interaction P <0.01 | |||||||
| LT | A | 2023 (691) | 1820 (557) | 2056 (587) | <0.01 | 0.49 | <0.01 |
| B | 2413 (722) | 2308 (651) | 2352 (635) | 0.03 | 0.21 | 0.36 | |
| C | 2045 (589) | 2226 (621) | 2024 (579) | <0.01 | 0.67 | <0.01 | |
| Pooled A–C | 2160 (687) | 2126 (641) | 2144 (604) | 0.18 | 0.53 | 0.47 | |
| E | 1867 (567) | 1872 (558) | 2750 (706) | 0.93 | <0.01 | <0.01 | |
| Pooled A–E | 2087 (670)* | 2058 (630)* | 2296 (688)* | 0.30 | <0.01 | <0.01 | |
| Acquisition by team interaction P <0.01 | |||||||
| cMF | A | --- | 925 (325) | --- | --- | --- | --- |
| B | 1108 (411) | 1107 (409) | 1113 (448) | 0.97 | 0.88 | 0.85 | |
| C | 1180 (411) | 1186 (410) | 1244 (400) | 0.92 | 0.07 | 0.09 | |
| D | 1096 (362) | 1128 (393) | 1176 (429) | 0.34 | 0.02 | 0.15 | |
| E | 1247 (415) | 1281 (448) | 1213 (359) | 0.32 | 0.30 | 0.04 | |
| Pooled B–E | 1159 (397)* | 1175‡ (412)* | 1186 (409)* | 0.27 | 0.10 | 0.49 | |
| Acquisition by team interaction P = 0.08 | |||||||
| cLF | A | --- | 837 (288) | --- | --- | --- | --- |
| B | 1140 (383) | 1155 (400) | 1101 (406) | 0.54 | 0.13 | 0.02 | |
| C | 1272 (408) | 1240 (381) | 1186 (364) | 0.14 | <0.01 | 0.03 | |
| D | 1133 (340) | 1135 (329) | 1151 (386) | 0.93 | 0.48 | 0.53 | |
| E | 1354 (361) | 1286 (442) | 1218 (413) | <0.01 | <0.01 | <0.01 | |
| Pooled B–E | 1226 (377)* | 1204‡ (400)* | 1164 (387)* | 0.08 | <0.01 | <0.01 | |
| Acquisition by team interaction P <0.01 | |||||||
| (B) Mean cartilage thickness over the total area of bone (ThCtAB.Me) | |||||||
|---|---|---|---|---|---|---|---|
| Cartilage Plate |
Analysis Team |
FLASH | DESS-MPR | DESS | FLASH vs DESS- MPR |
FLASH vs DESS |
DESS- MPR vs DESS |
| ThCtAB.Me (mm) (SD) |
ThCtAB.Me (mm) (SD) |
ThCtAB.Me (mm) (SD) |
P | P | P | ||
| MT | B | 1.90 (0.28) | 1.81 (0.27) | 1.79 (0.28) | <0.01 | <0.01 | 0.02 |
| C | 1.85 (0.25) | 1.77 (0.26) | 1.79 (0.28) | 0.03 | 0.02 | 0.51 | |
| Pooled B–C | 1.88 (0.27) | 1.79 (0.27) | 1.79 (0.28) | <0.01 | <0.01 | 0.88 | |
| E | 2.01 (0.31) | 1.88 (0.29) | 1.94 (0.32) | <0.01 | <0.01 | 0.02 | |
| Pooled B–E | 1.92 (0.29)* | 1.82 (0.27)* | 1.84 (0.30)* | <0.01 | <0.01 | 0.20 | |
| Acquisition by team interaction P =0.10 | |||||||
| LT | B | 2.14 (0.25) | 2.11 (0.25) | 2.13 (0.26) | 0.36 | 0.66 | 0.63 |
| C | 2.07 (0.23) | 2.16 (0.23) | 2.03 (0.21) | <0.01 | 0.15 | <0.01 | |
| Pooled B–C | 2.11 (0.25) | 2.14 (0.24) | 2.08 (0.24) | 0.02 | 0.02 | <0.01 | |
| E | 2.51 (0.35) | 2.43 (0.40) | 2.15 (0.31) | 0.01 | <0.01 | <0.01 | |
| Pooled B–E | 2.24 (0.34)* | 2.23 (0.33)* | 2.10 (0.27)* | 0.75 | <0.01 | <0.01 | |
| Acquisition by team interaction P <0.01 | |||||||
| cMF | B | 1.91 (0.34) | 1.93 (0.35) | 1.94 (0.39) | 0.56 | 0.44 | 0.85 |
| C | 1.86 (0.49) | 1.92 (0.47) | 2.00 (0.36) | 0.22 | 0.06 | 0.33 | |
| D | 1.91 (0.35) | 1.95 (0.37) | 1.96 (0.40) | 0.41 | 0.25 | 0.74 | |
| E | 1.69 (0.38) | 1.85 (0.42) | 2.01 (0.43) | <0.01 | <0.01 | <0.01 | |
| Pooled | 1.84 (0.40)* | 1.91 (0.40)* | 1.98 (0.39) | <0.01 | <0.01 | <0.01 | |
| Acquisition by team interaction P <0.01 | |||||||
| cLF | B | 1.87 (0.33) | 1.91 (0.34) | 1.84 (0.34) | 0.19 | 0.32 | 0.03 |
| C | 1.86 (0.32) | 1.84 (0.32) | 1.85 (0.34) | 0.55 | 0.80 | 0.73 | |
| D | 1.84 (0.35) | 1.87 (0.35) | 1.81 (0.35) | 0.31 | 0.47 | 0.08 | |
| E | 1.67 (0.28) | 1.77 (0.41) | 1.89 (0.41) | <0.01 | <0.01 | <0.01 | |
| Pooled | 1.81 (0.33)* | 1.85 (0.36)* | 1.85 (0.36) | 0.02 | <0.01 | <0.01 | |
| Acquisition by team interaction P <0.01 | |||||||
*
P <0.05 for team effect within plate and acquisition
‡
Team A not included in pooled means.