Slice order inversion notification

[RebeccaThornley]

Describe the bug
I've noticed that hazen does not display the correct message in regards to slice order inversion. i.e. if I provide a data set that is in reverse in the slice direction (where acquired slice 1 = slice 11 and vice versa) hazen performs the slice inversion correctly before analysis but it displays the message 'Slice order inversion is not required'.

Likewise when I provide a data set that is in the correct slice order I see the message 'Performing slice inversion' when there is no slice inversion performed, nor is there a need to.

This is confusing when troubleshooting other acquisition issues as you have to carefully review the reports to see if the correct slices have been used.

To Reproduce
Perform any hazen task with a data set and observe outputted message about slice inversion. I have only tested this with a sagittal acquisition that was rotated online 90degrees. See example datasets attached.

Expected behavior
The correct message to be displayed with respect to slice order inversion.

Screenshots

Desktop (please complete the following information):

• OS: Sonoma 14.5
• Python version 3.9
• Hazen version 1.3.2 (downloaded 1.3.3 see issue 430)
• Deployment venv
  ACR_SAG_correct_order.zip
  ACR_SAG_reverse_order.zip