Physician Preference Between Low-Dose Computed Tomography With a Sinogram-Affirmed Iterative Reconstruction Algorithm and Routine-Dose Computed Tomography With Filtered Back Projection in Abdominopelvic Imaging

Abstract

For abdominopelvic CT, low-dose CT with SAFIRE may produce preferred image quality over FBP up to levels of 50% dose reduction.

Turn down the noise—a blinded evaluation of iterative image reconstruction in radiation therapy computed tomography simulation

“…4 Moreover, our results are similar to studies published in diagnostic radiology in which IR images had a higher subjective score over FBP in terms of noise level and overall image quality. [6][7][8][9]14 The scores of delineating GTV/CTV and delineating OAR were also significantly higher for reconstructed scans when compared with FBP scans. Moreover, the ρ for calculating the correlation between scores of different criteria was moderate to high (ρ = 0.45-0.79).…”

Assessment of wear and periacetabular osteolysis using dual energy computed tomography on a pig cadaver to identify the lowest acceptable radiation dose

“…There was little difference between 100% and 50% radiation exposure level and with iterative reconstructions; the radiation exposure level could be reduced to 25% without major loss of accuracy when measuring PAO. Other authors have described very low and even extremely low radiation exposure levels for CT. 30,31,34 However, those studies have not included large metal implants.…”

“…It has five different levels of iterations, from 1 to 5. 30,31 Two levels of iterative reconstructions, ADMIRE level 0 (switched off) and ADMIRE level 5 (highest level of iterative reconstruction) were tested for 100 keV and 150 keV VMS and MPR.…”