Adult Human Anatomy 1 - CT Scan

These models were extracted from a CT scan I had recently (Age 20) that could be useful to teach human anatomy. I thought it was quite an interesting project to extract the 3D models from the CT scan data. Not every body part was clear and able to be isolated with my minimal skill in manipulating the scan, but the few that came out well were the gallbladder, kidneys, and skeleton. The skeleton & kidneys are not printable directly, but the model might be useful in showcasing how things are arranged in the body. Some blood vessels also showed up in the model.

The gallbladder however is fully printable and was actually the point of the scan as I recently had to have mine removed and wanted to print a replica as a keepsake. It should be noted that in this case, the gallbladder is quite distended and inflamed due to gallstones and an infection, so a normal gallbladder would be quite a bit smaller. The CT scan was actually before my surgery to have it removed and so this is the main focus & I thought it'd be nice to have a replica of it now that it's no longer inside me.

The colon is also inflamed and has a stricture due to my Crohn's Disease (I'll be having it removed soon). This scan was also taken while I was on a biologic medication called Skyrizi (risankizumab-rzaa). I had to use an on-body injector for this every 8 weeks, but before, my dosage was higher and taken through an infusion at shorter, varying intervals.

Update: I found an add-in for 3D Slicer called Total Segmentator that uses AI to extract the body parts much better than I could do and so now I have 3D models of nearly all the internal organs & major blood vessels that were in the CT scan. I have updated the files to include everything I was able to extract now. Each bone was also able to be segmented separately so now the skeleton might be possible to print as well. The gallbladder is slightly different in this updated version and doesn't have the round part on the top that was in my initial manual extraction & the one I printed out for myself. Not all of the models in this new set are 3D printable via FDM, but I think a significant portion should be if you support it properly.

All models are 1:1 scale, directly extracted from the scan.

The models were made using a software called 3D Slicer which extracted the 3D model data from the CT scan data fed to it in DICOM format. All models were smoothed and cleaned up to remove any small islands.

3D Slicer: https://www.slicer.org/