Biol129_L5 - 1 Imaging Techniques The Problem All imaging...

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Unformatted text preview: 1 Imaging Techniques The Problem All imaging techniques are based on attempts to see inside the body non- invasively The specialized nature of the body and organ systems make this difficult 2 Early Techniques Some of the earliest techniques may not be viewed as imaging per se, but does give the physician a mental image of the body. Palpation Simple touching with pressure Varying the pressure gives indication of depth Organs can be isolated and checked Early Techniques - 2 Percussing Technique of listening to sound reflection of percussive tapping Can be used to determine fluid retention, relative organ size Both techniques are still practiced Why? 3 Physics to the rescue The discovery of the X- ray by Roentgen in the late 1800s opened the door to a half decade of fun. The X-ray is a high-energy photon (way beyond the UV range)....
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Biol129_L5 - 1 Imaging Techniques The Problem All imaging...

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