Figure 2.

Images of Adler blood flow classification: (a) grade 0 mapped no color flow signals in the solid breast mass; (b) grade I revealed minimal blood flow signals and mapped punctate color flow; (c) grade II revealed moderate blood flow signals and mapped more punctate color flow than grade I or visualized one thick vessel (the diameter of the largest vessel was between 2 and 3 mm) penetrating through the solid breast mass; (d) grade III revealed marked blood flow signals and mapped more punctate color flow than grade II or visualized equal or more than two thick vessels interwoven with each other in the solid breast mass.