Scan Parameters and CT Radiation Dose

  • Sarabjeet Singh
  • Mannudeep K.  Kalra
Part of the Medical Radiology book series (MEDRAD)


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.


Image Noise Dose Length Product Reduce Radiation Dose Gantry Rotation Time High Image Noise 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of RadiologyHarvard Medical School, Massachusetts General HospitalBostonUSA

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