Introduction

1]. It is relatively cheap, safe, gives real time images and has good soft tissue contrast. As well as anatomical detail, ultrasound can exploit the Doppler effect to give information about blood flow and the vascularity in tissues. The distortion of tissue under pressure in ultrasound images can give images related to the elasticity of tissues.

Radionuclide imaging, including PET-CT, which is primarily concerned with the function of organs and tissues is dealt with in Chapter 6.

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