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  Indian J Med Microbiol
 

Figure 6: Twinkling artifact produced by gases in the gastrointestinal tract, evaluated with high pulse repetition frequency 7.0 KHz (112 cm/s) and low pulse repetition frequency 6.6 KHz (17.6 cm/s), while keeping all the other machine settings the same. With high pulse repetition frequency (scale) there is twinkling artifact while there is no twinkling detected with low pulse repetition frequency (scale), which ultimately conclude that twinkling artifact is pulse repetition frequency (scale) independent

Figure 6: Twinkling artifact produced by gases in the gastrointestinal tract, evaluated with high pulse repetition frequency 7.0 KHz (112 cm/s) and low pulse repetition frequency 6.6 KHz (17.6 cm/s), while keeping all the other machine settings the same. With high pulse repetition frequency (scale) there is twinkling artifact while there is no twinkling detected with low pulse repetition frequency (scale), which ultimately conclude that twinkling artifact is pulse repetition frequency (scale) independent