Coronal view is distorted when loading .tif Files

Operating system:Win10
Slicer version:4.10.2
Expected behavior: Normal View
Actual behavior: Coronal View is distorted

I am new to evaluation of CT-Scans. When i import my tiff-files from a CT-scan to Slicer, the coronal view is distorted as shown in the picture

I am not sure how to avoid this behavior.

Thank you in advance!

That appears to be a set of projection images, not a volume. You need reconstruct, either with the scanner itself or with another program.