Thickness matters!
Observe the images of the breasts. The right breast is
indicated by the curved line. Note how the image of the breast is pronounced
on the lateral and lower side. It is just skin, connective tissue and fat, yet
the thickness creates an image. This also tells you that the subject is a
female.
Also note how the thick musculature around the shoulder
appears white.
Abdominal organs, packed together with a great total
thickness, also appear white.
The different shades between black and white in an X-ray
image are also referred to as “densities” or “shadows” in radiological jargon.
We thus speak of bone density, soft tissue density and so on.