Скачать или смотреть Parallax Effect ll ll Radiographic image quality ll Radiology ll Radiography Simplified

In radiography, the parallax effect refers to the apparent shift in the position or size of an object when viewed from different angles.
Consequences
1) Geometric Distortion: Structures at the periphery of the image may appear enlarged or distorted due to the diverging x-ray.

2) Loss of Sharpness (Parallax Unsharpness): X-ray photons may expose emulsion layers on different sides of the film, leading to misalignment and blurring of the image.


factor affecting parallax Effect effect
1) film thickness
2) proper centering of body part
3) smaller focal spot size.

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