Patient Dosimetry. Chapter 22

Patient exposures arising from radiological procedures form the largest part of the population exposure from artificial sources of radiation. According to United Nations Scientific Committee on the Effects of Atomic Radiation, the annual frequency of X ray examinations is 360 per 1000 individuals worldwide. Owing to the associated risk of radiation detriment to the patient, there is a clear need to monitor and control these exposures, and to optimize the design and use of the X ray imaging equipment so that the patient dose is reduced as far as possible, consistent with achieving the required clinical image quality