Idle thought:

[cdave]

Colour is (badly) defined as the relative amount of one three frequencies of light waves reflected off a visible point.

Could you make a false colour ultrasound image by using three different frequencies of ultrasound? If so would they be of any use?

Comments

[cdave]

There's already 3D ultrasoundout there.

But it just still just shows a monochrome image of how the much of the ultrasound signal is reflected by boundaries between different organs.

What I was envisioning was that different boundries, may reflect with the same intensity at one frequency, and thus have the same brightness in the monochrome. But at different intensities in other frequencies, thus appearing as a different colour in the composite false colour image.