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X-ray Collimation Effects

Lamp holders for radiographic and fluoroscopic projection imaging have a significant impact on patient dose and image quality. Active quasi-up to the volume of interest can reduce the overall overall dose of the patient, thereby minimizing radiation risk. The smaller the volume of illumination, the less X-ray scattering events on the detector. This will improve the subject contrast and image quality.

Rectangular collimation can reduce radiation
The lamp holder differs from the use of electronic magnification because the field of view obtained remains the same and the resulting spatial resolution performance is not improved. However, the use of collimation typically reduces image brightness and requires a corresponding increase in the patient’s radiation entrance skin dose, although the level at which electronic magnification is used cannot be achieved because the reduction in gain is constant.


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