Fig. 6.

Photon-counting CT images of the anthropomorphic skull phantom at clinical photon fluxes. (a) A reconstruction with 190-mm field-of-view and 0.19-mm pixel size whereas the remaining panels show detailed views with 0.16-mm pixel size. (b) and (d) Reconstructed from one revolution, corresponding to native slice thickness; (c) and (e) reconstructed from two revolutions, mimicking the number of photons per slice of a conventional CT detector. Arrow heads indicate septations in mastoid cells and lines indicate delineation of the hypoglossal canal, the sigmoidal sinus and the carotid canal. (f) and (g) The same detail as (d) and (e), reconstructed from two revolutions using only the low and high energy bins, respectively.