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What are the best techniques to reduce POCUS artifact and increase the diagnostic accuracy of lung ultrasound?

2 Answers
Mednet MemberInvited Expert
General Internal Medicine · Oregon Health & Science University
Answered on · Updated on

It is important to first clarify that essentially all of lung ultrasound is artifact, and this is a great illustration of how artifact can actually help us to make a diagnosis rather than obscuring it. When we see B-lines, for example, that is an artifact that does not represent a similarly appearing structure within the lung! But the presence of such an artifact may be the key to a diagnosis.

This is critical to understand, as many machine presets are designed to suppress artifacts and may reduc...

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Hospital Medicine · NYU Grossman School of Medicine
Answered on · Updated on

Well, this is an interestingly worded question.

Some of the major findings of lung ultrasound (A-lines and B-lines) are actually artifacts themselves, so if you're looking for these, you don't want to decrease artifacts. Lung mode on many modern machines actually turns artifact filtering off so as to bring out those findings even more. When you turn on lung mode, you might have to decrease the gain a little to have the field be a little less grainy, which sometimes bothers people.

I'd say the mos...

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