Computed tomography (CT) is a non-invasive medical imaging technique allowing a detailed internal view of body structures.
A CT measures X-ray attenuations by different tissues inside the body by using a rotating X-ray tube and …

Positron emission tomography (PET) is a unique modality for imaging normal and diseased metabolical functions in vivo, in a quantitative manner and is a type of nuclear medicine imaging. It is a functional imaging technique …

Inaudible sound in the frequency range of approx. 20,000 to 10 billion (109) cycles/sec. Ultrasound has different velocities that differ in density and elasticity from one kind of tissue to the next. This property permits …