Final answer:
Iterative reconstruction is a complex cycle of correction calculations applied during image reconstruction in order to reduce noise in the image.
Step-by-step explanation:
Iterative reconstruction is a complex cycle of correction calculations applied during image reconstruction in order to reduce noise in the image. It is typically performed on helical image data to generate images in orientations other than those that can easily be directly acquired with CT.
This technique involves multiple iterations of image estimation and correction, with each iteration improving the image quality.