# \#petct

**URL:** https://discourse.slicer.org/tag/petct/231.md

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## [Possible issue with PSMA PET/CT DICOM loading and SUVbw recognition](https://discourse.slicer.org/t/possible-issue-with-psma-pet-ct-dicom-loading-and-suvbw-recognition/47020)

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**Author:** [@ranahashemi](https://discourse.slicer.org/u/ranahashemi)\
**Replies:** 2\
**Last updated:** [May 15, 2026, 12:24am UTC](https://discourse.slicer.org/t/possible-issue-with-psma-pet-ct-dicom-loading-and-suvbw-recognition/47020 "2026-05-15T00:24:51Z")

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Hello everyone, I encountered a possible issue when loading PSMA PET/CT DICOM files in 3D Slicer. When I select and load all DICOM files from DICOM database for one patient together, 3D Slicer does not seem to recogniz…

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## [Pet/CT Scan DICOM files show "Reference image in series does not contain geometry information" error](https://discourse.slicer.org/t/pet-ct-scan-dicom-files-show-reference-image-in-series-does-not-contain-geometry-information-error/42027)

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**Author:** [@neutronstar](https://discourse.slicer.org/u/neutronstar)\
**Replies:** 1\
**Last updated:** [March 8, 2025, 12:50am UTC](https://discourse.slicer.org/t/pet-ct-scan-dicom-files-show-reference-image-in-series-does-not-contain-geometry-information-error/42027 "2025-03-08T00:50:39Z")

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Hi! I’m sorry I’m very new to 3d Slicer. I’m trying to 3d print one of my organs from my pet/ct scan. When I upload it to 3d slicer I can see the results, but I can’t see the 3d model. What should I do to fix this iss…

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## [Combining two different scan types](https://discourse.slicer.org/t/combining-two-different-scan-types/17153)

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**Author:** [@arif](https://discourse.slicer.org/u/arif)\
**Replies:** 6\
**Last updated:** [September 15, 2024, 1:05pm UTC](https://discourse.slicer.org/t/combining-two-different-scan-types/17153 "2024-09-15T13:05:44Z")

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Hi everyone! Is it possible to combine two different scan types(PET/CT and MpMRI) in one dicom file? Have a nice day.

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## [Circular ROI on PET](https://discourse.slicer.org/t/circular-roi-on-pet/32141)

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**Author:** [@tugba\_kissa](https://discourse.slicer.org/u/tugba_kissa)\
**Replies:** 0\
**Last updated:** [October 10, 2023, 8:26pm UTC](https://discourse.slicer.org/t/circular-roi-on-pet/32141 "2023-10-10T20:26:23Z")

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I am trying to do segmentation from PET/CT fusion image. But I cannot get circular ROI. When I can get circular ROI, when I select the source volume as pet, the image is distorted and pixel-by-pixel squares are seen as I…

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## [PETCTfusion (dealing with PET and CT DICOM images)](https://discourse.slicer.org/t/petctfusion-dealing-with-pet-and-ct-dicom-images/8361)

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**Author:** [@Nora](https://discourse.slicer.org/u/Nora)\
**Replies:** 4\
**Last updated:** [February 18, 2023, 11:37pm UTC](https://discourse.slicer.org/t/petctfusion-dealing-with-pet-and-ct-dicom-images/8361 "2023-02-18T23:37:25Z")

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Hi, I’m trying to put my head around 3D slicer. I’ve downloaded version 4.10.2 and 4.11.0. I’ll be working with PET/CT images. I’m trying to find PETCTfusion module but I couldn’t find it on the list, not even on the …

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## [Fix Image Resolutions and number of slices of CT images to fit with pet image](https://discourse.slicer.org/t/fix-image-resolutions-and-number-of-slices-of-ct-images-to-fit-with-pet-image/24772)

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**Author:** [@morgenmuesli](https://discourse.slicer.org/u/morgenmuesli)\
**Replies:** 1\
**Last updated:** [August 23, 2022, 6:42pm UTC](https://discourse.slicer.org/t/fix-image-resolutions-and-number-of-slices-of-ct-images-to-fit-with-pet-image/24772 "2022-08-23T18:42:01Z")

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Hello, I am a total beginner with 3d Slicer so please excuse me and feel free to direct me to the appropriate page if the question is trivial. I’ve got a Dataset of labeled PET/CT Volumes, where there are Full Body PET …

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## [Align PET and CT images](https://discourse.slicer.org/t/align-pet-and-ct-images/23228)

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**Author:** [@Liu\_Lance](https://discourse.slicer.org/u/Liu_Lance)\
**Replies:** 0\
**Last updated:** [May 2, 2022, 7:26am UTC](https://discourse.slicer.org/t/align-pet-and-ct-images/23228 "2022-05-02T07:26:04Z")

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Hi I feel very curious about how the two images PET (img\_suv) and CT (imgCT) align together in the 3d slicer. they are from the same object. but the nifti affines are different as shown in the following figures. in the …

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## [FileFormatError when loading PET CT](https://discourse.slicer.org/t/fileformaterror-when-loading-pet-ct/20579)

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**Author:** [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Replies:** 3\
**Last updated:** [November 11, 2021, 5:46pm UTC](https://discourse.slicer.org/t/fileformaterror-when-loading-pet-ct/20579 "2021-11-11T17:46:23Z")

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Hi, I would like to load PET CT images into Slicer 3.13, DICOM import works, but clicking the axial 512x512 PET image series results in: Could not read scalar volume using GDCM approach. Error is: FileFormatError Loadi…

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## [Fail to load pet/ct Gemini](https://discourse.slicer.org/t/fail-to-load-pet-ct-gemini/8158)

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**Author:** [@hu\_shuang](https://discourse.slicer.org/u/hu_shuang)\
**Replies:** 10\
**Last updated:** [August 28, 2019, 3:05am UTC](https://discourse.slicer.org/t/fail-to-load-pet-ct-gemini/8158 "2019-08-28T03:05:24Z")

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Operating system: Mac OS X Slicer version:4.10.2 Expected behavior: load pet/ct acquired by Phillips Gemini Actual behavior: It returns to “Could not load: 7: bone as a Scalar Volume”, the metadata is as following. No…