Figure 7.

Tumor blood flow.(A) Blood flow image of tumor; (B) Classification of blood flow signals. a: saline control group; b: recombinant Bifidobacterium infantis containing pTRKH2-PsT plasmid group; c: recombinant Bifidobacterium infantis containing pTRKH2-PsT/sKDR plasmid group. Grade: 0, no blood flow signals were detected within the tumor; I, minimal blood flow (one or two dot-like or thin- and short-like blood flow signals detected within the tumor); II, moderate blood flow (up to three dot-like blood flow signals or one longer blood flow signals detected within the tumor); III, abundant blood flow (more than five dot-like blood flow signals or two longer blood flow signals detected within the tumor).

Li et al. BMC Cancer 2012 12:155   doi:10.1186/1471-2407-12-155
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