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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Invest Radiol. 2016 Dec;51(12):758–766. doi: 10.1097/RLI.0000000000000310

Figure 2. Schematic diagrams of the detailed multi-frame compounding pulse inversion imaging sequence.

Figure 2

A, 22 virtual source elements transmit divergent waves sequentially. 44 transmitted pulses (one group of PI pulses) are used to generate one PI image. The time interval between two consecutive pulses is 65 μs. B, 4 consecutive groups of PI pulses (176 single pulses) are used to generate one multi-frame compounding PI image. The time interval between two consecutive groups of PI pulses is 65 μs. C, Multi-frame compounding PI imaging is performed for 300 s at a frame rate of approximately 6 Hz. High intensity destruction pulses are transmitted from 180 to 185 s.