What is the effect of radiation absorbed by the patient when using filters?

Using filters during medical imaging or radiation therapy serves to reduce the amount of radiation that reaches the patient. Filters are designed to selectively absorb lower-energy photons that contribute less to the diagnostic quality of the image but may add to the overall radiation dose. When these lower-energy photons are filtered out, the quality of the radiation beam is improved, and the overall exposure to the patient is minimized.

In this context, the use of filters effectively decreases the radiation absorbed by the patient. This is beneficial not only in preserving image quality but also in minimizing the risk associated with radiation exposure. Therefore, the correct answer indicates that the application of filters reduces the radiation dose absorbed by the patient, enhancing safety during diagnostic procedures or treatments.