Scan Parameters and CT Radiation Dose

The most important parameter for reducing radiation dose is ensuring appropriate clinical indication for CT scanning. Once appropriateness of clinical indication for CT has been established, radiologists, physicists and radiologic technologists should work closely to adapt individual scanning parameters that affect radiation dose. Establishing dose-efficient CT protocols is by no means a task simpler than orchestrating a symphony where scan parameters have to be in sync in order to yield satisfactory results. This chapter briefly describes scan parameters that affect radiation dose in CT.

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