iterative reconstruction

Family of CT reconstruction methods that iteratively refine the image to reduce noise. Superseded traditional filtered back-projection for dose reduction.

Why it matters to buyers: Industry-standard since the mid-2010s. Named variants: ASiR (GE), SAFIRE/ADMIRE (Siemens), iDose (Philips), AIDR (Canon).

Why it matters to engineers: Compute-heavy; reconstruction time longer than filtered back-projection. Modern systems use GPU acceleration.