The ornamental design for a petimagingscanner, as shown and described.
FIG. 1 is a perspective view of the pet imaging scanner.
FIG. 2 is a first side view of the pet imaging scanner.
FIG. 3 is a second side view of the pet imaging scanner.
FIG. 4 is a top view of the pet imaging scanner.
FIG. 5 is a bottom view of the pet imaging scanner.
FIG. 6 is a front view of the pet imaging scanner; and,
FIG. 7 is a back view of the pet imaging scanner.
The broken lines showing a bed represent environmental structure and form no part of the claimed design; and the other broken lines illustration portions of the pet imaging scanner that form no part of the claimed design.