I was working with a patient’s data, and it loaded perfectly. However, when I attempted to perform a threshold operation, I noticed that it only applied to the top right corner.
you can download the DICOM data from : https://www.dropbox.com/s/ts69c4mirm89153/TD3_Maxilla%20mandible%20%26%20cervical%20vtb%20%281%29.zip?dl=0
Here is the evidence in the slicer:
Step1 selecting threshold range
Step2 after applying the threshold
And here is the evidence in Mimics: