Validation of synthesized normal‐resolution image data generated from high‐resolution acquisitions on a commercial CT scanner

Abstract

NRsim, an algorithm for simulating NR acquisitions using HR and SHR raw data, was introduced and shown to generate images with spatial resolution, noise, HU accuracy, and LCD largely equivalent to scans acquired using an actual NR acquisition. At SSDE levels below ~5 mGy for the lung protocol, differences in noise magnitude and LCD for NR_SHR were >15% which defines a region where NRsim degrades due to contributions from electronic noise.