MRI measurements of vessel calibre in tumour xenografts: comparison with vascular corrosion casting.

Quantitation of the MRI data revealed that, compared to the vehicle group, fBV was lower in tumours treated with either 30 or 200 mg/kg ZD6126, and was highly significant (p < 0.01) in the cohort treated with 200 mg/kg ( Table 1 ).

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