The ornamental design for a computedtomographyscanner, as shown and described.
FIG. 1 is a perspective view showing my design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
In FIG. 7, the broken lines immediately adjacent the shaded areas represent the bounds of the claim, and all other broken lines represent unclaimed portions of the computed tomography scanner. None of the broken lines form a part of the claimed design.