2D image of .dcm file to 3D Volume

Hi,
I’ve received a .dcm file that only displays on the axial view as a 2D image of a sonogram. Is it possible to convert this into a 3D volume for segmentation? I’ve tried increasing the volumes using the Volumes module, as well as convert to DICOM module but I get the same thing. If not, what type of file is preferred in 3DSlicer when wanting to segment fetal ultrasounds/sonograms. Attached is the screenshot of what I get when I uploaded the .dcm file onto 3DSlicer.

This seems like a Secondary Capture, basically a 2D screenshot. This is a completely valid DICOM format, one of many types.

Do you have more files? If not, then it is not possible to have a 3D volume. Such volume renderings are usually done in the ultrasound workstation and saved as image. Real reconstructed 3D ultrasound volumes are very rare in current clinical settings.

1 Like

It is possible that standard DICOM fields only contain this 2D screenshot but there is a full 3D volume stored in private fields. SlicerHeart extension can load many kinds of 3D/4D volumes.

1 Like

Thank you for your response! Do you know how (or where I can learn) to access/edit the private fields?

You can view content of all DICOM fields in DICOM module (right-click on a series and choose “View DICOM metadata”). However, 3D ultrasound data is usually stored using complex encoding so you cannot trivially get the 3D volume out of it. That’s what SlicerHeart extension takes care of, for a number of ultrasound systems. See DICOM import section for more details.

If it is not clear enough how you can get the 3D volume then give us more information (brand and model of the ultrasound system, file size, maybe the whole DICOM metadata - with patient information excluded) and we can provide more specific advice.

1 Like

I understand. I will take a look at the section, and see if i can also get any more information to give you. Thanks again.

1 Like