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Imaging characteristics of the 36 experimental gliomas
Contrast AgentHyperechogenicity on Sonogram*Size of Tumor on Sonogram (cm2)†Hypointensity on T2-Weighted MR Image*
−+++−+++
SPIO particles (n = 12)1380.11 ± 0.06165
Gadopentetate dimeglumine (n = 12)9300.18 ± 0.11200
None (n = 12)9210.15 ± 0.081200
  • 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.