color palette

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Trisonics

AUE

Conquest Imaging

Summit Imaging

Ultrasound Gurus

Just be sure to tell them you were referred by MedWrench.

I am not sure what you mean by "get the most out of the color palett" but essentially, the color bar represents the color duynamic range of the scanner when used to assess blood flow. The scale of the color bar is determined by the pulse-repetition frequency, which in turn determins the level of sensitivity to slow moving blood and the susceptability to color artifacts called aliasing.

Ideally, the color scale (PRF) should be adjusted as low as possible to maintain the highest level of flow sensitivity but not so low as to introduce aliasing artifacts. Additionally, many users adjust the color baseline position to further optimize thir ability to detect flow and not have color artifacts.

See: http://pubs.rsna.org/doi/pdf/10.1148/radiographics.12.1.1734480

Hope this helps-

Dan,

ECRI Institute

Hello Dan: The terason 2000 offers the posibility of scanning not only in grey scale, but in sepia, red, green and iridiscent as well. The built-in help only explains that depending on the anatomy being scanned, it could be helpful to browse along the colours in order to emphasise slight differences.

That is what I meant by "get the most of it".

Thank you for the link, it's very useful for me.

Cordially JM Goimil  

OK,

That is commonly referred to as "B-color" (or colorized B-mode imaging).

B-mode data is typically in shades of gray (gray scale). B-color uses shades of a diffeent color with the concept being that the human eye (or eys of some individuals) may be able to differentiate subtle differences in a color (magenta is commonly cited) than is possible using gray scale.

Not all studies have supported this concept and very few peer-reviewed reports suggest B-color has any 'marked' (significant) benefit over conventional gray scale B-mode imaging. 

That said, there must be some clinicians who do like to use b-color since many vendors include it as a feature of their scanners.

In any case, if you do a PubMed or Google Scholar search for "B-color ultrasound" you will find a few articles and peer-reviwed reports.

If you want to assess it yourself I would suggest obtaining images of the gray scale (dynamic range) targets in a tissue mimicking phantom using gray scale b-mode and each of the various b-color maps and see for yourself if any appear to demonstrate the differences in tissue reflectivity(brightness) better than another. You may need to adjust the overall gain, dynamic range and time-gain compensation (TGC) settings to optimize each image.

If research isn't your thing disregard the b-color feature and focus on high quality gray scale b-mode imaging... (its not that clinically important)

good luck,

Dan

Hello Dan: I see you work in a very stimulating environment, I envy you. I like research but I agree with you that it woul be preferable to learn how to get the best images in gray scale rather than scatter my attention.

Best wishes from Spain

JM Goimil