Table 1.
Comparison of volume and shape assessments between in vivo and ex vivo MRI
| In-vivo MRI | Ex-vivo MRI | |
|---|---|---|
| Volume | ||
| Mean±SD (cc) | 50.8±26.8 | 39.7±18.6 |
| p-Valuea | 0.008 | |
| Average percent changeb | −19.5 | |
| Median percent changeb | −22.3% | |
| RL/AP ratio | ||
| Mean±SD | 1.21±0.12 | 1.33±0.14 |
| p-Valuea | 0.015 | |
| Average percent changeb | 12.2% | |
| Median percent changeb | 11.3% | |
| CC/AP ratio | ||
| Mean±SD | 1.09±0.22 | 1.10±0.18 |
| p-Valuea | 0.963 | |
| Average percent changeb | 0.34% | |
| Median percent changeb | −2.1% | |
| RL/CC ratio | ||
| Mean±SD | 1.15±0.29 | 1.24±0.22 |
| p-Valuea | 0.265 | |
| Average percent changeb | 8.8% | |
| Median percent changeb | 1.3% | |
a
Listed in bold when statistically significant at p<0.05.
b
Change from in-vivo to ex-vivo measurements.
RL/AP ratio, right-to-left/anteroposterior ratio; CC/AP ratio, craniocaudal/anteroposterior ratio; RL/CC ratio, right-to-left/craniocaudal ratio.