Approcci alla riduzione della dose in Computed Tomography
Pediatric Computed Tomography
Radiographic examinations are used much less frequently for children than for adults, because their organism is still developing and because children seldom understand the cooperation (such as breath-holds, etc.) required of them. Nevertheless, computed tomography is of great importance for imaging of pediatric patients, especially for complex lung imaging, for imaging of congenital malformations, and in intensive care. As a consequence, the ALARA principle (As Low As Reasonably Achievable) is of particular importance in pediatrics. It calls for always selecting the dose that is as low as reasonably achievable, yet sufficient for a reliable diagnosis.
The Siemens Dual Source CT SOMATOM Definition Flash, for example, offers effective doses below 0.5 mSv in pediatric applications, with excellent quality. Because of the fast scan speed using very high pitch values (Flash Spiral), even uncooperative children have the potential to be scanned quickly.1
Siemens CT Scanners come along with a wide range of technologies designed to reduce the dose to the patient to a minimum, including special tools developed for pediatric CT imaging (CARE Child). Applying all these tools pediatric patients can be imaged with CT while the benefits of the examination may potentially outweigh the potential risk of the radiation exposure.
1 Lell MM et al. High-pitch spiral computed tomography: effect on image quality and radiation dose in pediatric chest computed tomography. Invest Radiol. 2011 Feb;46(2):116-23.