CT imaging--towards patient- and indication-specific optimization
Kortesniemi, M.; Lantto, E.
Duodecim; Laaketieteellinen Aikakauskirja 131(1): 42-48
2015
ISSN/ISBN: 0012-7183 PMID: 26245054 Document Number: 679324
The same CT imaging program should not be applied to all patients, because the required image quality and dose of radiation vary according to the indications and regions. The programs should be optimized on the basis of indication, size of the patient and usage of intravenously administered iodine contrast agent. New technical options are available for reducing the radiation exposure. Additional means of optimization include proper definition of the region being imaged, avoidance of redundant series of images, selection of correct image quality, tube current and voltage, and new methods of calculating images. Patients' radiation exposure and clinical image quality should also be monitored.