Aortic Bifurcation by Cbonsig

Aortic Bifurcation

Cbonsig

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Published on January 15, 2012

This thing was Featured on January 15, 2012

Description

This is a 3D print derived from medical imaging of an aortic bifurcation and iliac arteries. The source data set is publicly available in the OsiriX DICOM library pubimage.hcuge.ch:8080/ . It is a CT scan from a patient that appears to have had one or more iliac stents placed in their right iliac artery. The workflow used to create this Thing was (almost) completely open source:

AMNESIX Data set: pubimage.hcuge.ch:8080/DATA/AMNESIX.zip

OsiriX used for segmentation and rough STL export: osirix-viewer.com/

Meshlab used for cleanup: meshlab.org/

Final cleanup, slicing, and GCode using Netfabb (http://netfabb.com), which is a bit faster than the open source alternatives.

Printed with RepG on an Ultimaker. Using the Netfabb "standard" profile (modified to print at 230 degrees) the full print took 4 hours and 19 minutes.

More on the story of this model: craig.bonsignore.com/2012/01/17/open-source-human-anatomy/

Instructions

Print upside-down, as shown on the bed of the Ultimaker. There are some overhangs that causes a bit of drooping in my print, but nothing too terrible. I had quite a bit of stringing, which I cleaned up using a hobby knife in about 15 minutes. This makes a nice model for engineers or designers working on stents or endovascular aneurysm repair devices. A print like this can be used for a mold to create a bench-top deployment or flow model. This one is printed in PLA, but as a mold core, this would be a good candidate for trying water soluble PVA.

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donb on January 29, 2012 said:

great work. this is the future.

Mjolnir on January 17, 2012 said:

Very interesting, and I've been looking for CT datasets for some time, glad you posted this link and the list of the apps you used to get from scan to printed object.

Cbonsig on January 17, 2012 said:

There's another initiative under way called "Cardiovascular and Pulmonary Model Repository" that can be found at http://vascularmodel.org/ ... Nathan Wilson (http://www.linkedin.com/in/wil... has been leading the charge on this, and it is sponsored by NIH. They plan to publish a full library of models, and for now there are a few examples posted at http://vascularmodel.org/sbir/...