Official websites use. Share sensitive information only on official, secure websites. Author for correspondence: Tel. Despite universal consensus that computed tomography CT overwhelmingly benefits patients when used for appropriate indications, concerns have been raised regarding the potential risk of cancer induction from CT due to the exponentially increased use of CT in medicine.
Keeping radiation dose as low as reasonably achievable, consistent with the diagnostic task, remains the most important strategy for decreasing this potential risk. This article summarizes the general technical strategies that are commonly used for radiation dose management in CT.
Keywords: computed tomography, CT, CT technology, radiation dose reduction, radiation risk. Since its introduction in [ 1 ], x-ray computed tomography CT has established itself as a primary diagnostic imaging modality.
Subsequent to the introduction of helical scanning technique in the late s [ 2 , 3 ] and the advent of multidetector-row technology in the late s [ 4 ], the number and impact of clinical applications of CT have continued to grow. With its fast scanning speed and isotropic spatial resolution at 0.
CT imaging also plays a major role in the staging, treatment planning and follow-up of cancer. It is because of this tremendous value of CT that its use is now pervasive in modern medical practice.
