is the least dense and appears black (like in your lungs). Bone or Metal is the most dense and appears bright white .
fall somewhere in the middle, appearing as various shades of gray . 3. The Role of the Radiologist Radiology 101: The Basics & Fundamentals of Ima...
This uses high-frequency sound waves. Since there is no radiation, it’s the go-to for pregnancy, but it’s also great for looking at the heart (echocardiograms) and gallbladder. 2. Understanding "Density" (The Black and White) is the least dense and appears black (like in your lungs)