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What is reverberation artifact?

What is reverberation artifact? REVERBERATION. Reverberation artifacts appear as a series of equally spaced lines. They are produced by an ultrasound beam repeatedly bouncing back and forth between two highly reflective interfaces or between the transducer and a strong reflector. Read more…

What is observe in R shiny?

What is observe in R shiny? An observer is like a reactive expression in that it can read reactive values and call reactive expressions, and will automatically re-execute when those dependencies change. But unlike reactive expressions, it doesn’t yield a Read more…