Fig. 11.

Imaging performance for body scan protocols visualized in cone-beam computed tomography images of a pelvis phantom: coronal views of the region about the acetabulum (white arrow) and zoomed-in axial views (yellow inset) of a low-contrast insert (yellow arrow). The clinical body protocols (right three columns) deliver relatively high mAs (potentially suitable to soft-tissue visualization—for example, the H protocol with Smooth or Normal two-dimensional filters) — and motivated the investigation of custom body protocols (left three columns) for bone visualization at reduced radiation dose.