828139.fig.004a
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828139.fig.004b
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Figure 4: Planar scintigraphy of 99mTc-N4 and 99mTc-N4-NIM (400 μCi/rat, iv, acquired 500,000 count) showed higher tumor-to-muscle count density ratio in 99mTc-N4-NIM compared to that of 99mTc-N4. The numbers are tumor-to-muscle count density ratios (counts/pixel) at 60–120 min.