Fig. 1
From: Paediatric multi-detector row chest CT: what you really need to know
Altering the reconstruction algorithm from soft tissue (B30) to a bony filter (B60) increases the edge enhancement between tissue interfaces, resulting in increase in image sharpness, as demonstrated in b when compared to a, when viewed at the same parameter of W1200, C-600. Altering the viewing parameter to W400, C40 on the B30 algorithm highlights the mediastinum and great vessels (c). Scanning parameters: 100 kV, 36 eff mAs, 30 ref mAs, 1.20 CTDIvol, 20 DLP