# LongitudinalPETCT extension fails to read DICOM files

**URL:** https://discourse.slicer.org/t/longitudinalpetct-extension-fails-to-read-dicom-files/14902
**Category:** Support
**Tags:** pet
**Created:** [December 3, 2020, 7:05pm UTC](https://discourse.slicer.org/t/longitudinalpetct-extension-fails-to-read-dicom-files/14902 "2020-12-03T19:05:07Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Mgi](https://avatars.discourse-cdn.com/v4/letter/m/b19c9b/32.png) [@Mgi](https://discourse.slicer.org/u/Mgi)
#### Post date: [December 3, 2020, 7:05pm UTC](https://discourse.slicer.org/t/longitudinalpetct-extension-fails-to-read-dicom-files/14902/1 "2020-12-03T19:05:07Z")

</div>

Thank you, this solve my problem. I have another question because now with the version 4.11.2 is not compatible “LongitudinalPETCT” extension, and when I tried to load the dicom with images appear the message: “Coud not load … as scalar volume”, and I can’t open the file.