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RADIOLOGY
AND IMAGING (PLAIN
X-RAY
IMAGING (DENSITIES (Black
Gas,…
RADIOLOGY
AND IMAGING
THEORY
PLAIN
X-RAY
PHYSICS
Machine
- cathode
- produces high energy electrons
- anode - rotating
- produces x-ray photons
- shielding
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PLAIN
X-RAY
IMAGING
DENSITIES
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White
- Bone
- Calcified structures
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EQUIPMENT
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Digital
Radiography
DR
Converts x-ray
to visible light
captured by
photo-voltage sensor
converts light to electricity
= digital image
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Advantages
- inexpensive
- fast
- simple
- readily available
Disadvantages
- radiation exposure
- 3D structures as 2D format
- low tissue contrast
- overlapping anatomy
- no dynamic/functional information
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PRICIPLES
Be Systematic
- Alignment
- Bone
- Cartliage
- Soft tissues
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