What is the function of collimation in X-ray procedures?

Collimation is a critical aspect of X-ray procedures, primarily used to limit the X-ray beam to the specific area that needs imaging. By doing this, collimation helps focus the radiation only on the targeted anatomy, thereby reducing unnecessary exposure to surrounding tissues. This practice not only enhances patient safety by minimizing radiation dose but also improves the quality of the images produced by reducing scatter radiation, which can result in clearer, more diagnostic images.

While the function of collimation does indirectly contribute to aspects like patient comfort and image quality, the primary goal is to accurately delineate the area being examined. This helps in ensuring that the X-ray procedures are as effective and efficient as possible, maintaining the principle of radiation protection to keep doses as low as reasonably achievable (ALARA).