Imaging characteristics of the 36 experimental gliomas
| Contrast Agent | Hyperechogenicity on Sonogram* | Size of Tumor on Sonogram (cm2)† | Hypointensity on T2-Weighted MR Image* | ||||
|---|---|---|---|---|---|---|---|
| − | + | ++ | − | + | ++ | ||
| SPIO particles (n = 12) | 1 | 3 | 8 | 0.11 ± 0.06 | 1 | 6 | 5 |
| Gadopentetate dimeglumine (n = 12) | 9 | 3 | 0 | 0.18 ± 0.1 | 12 | 0 | 0 |
| None (n = 12) | 9 | 2 | 1 | 0.15 ± 0.08 | 12 | 0 | 0 |
Note.—The − indicates absent; +, moderate; ++, extensive
* Data are number of tumors.
† Data are mean ± SD. Tumor size on sonogram was measured as maximal coronal area.