Using 3DSlicer, Z-Brush, and Slic3r to Turn CAT Scans Into Kidney 3D-Prints | #3DThursday #3Dprinting

Not that you want to visit the hospital or get a CAT scan anytime soon but if you do, this is something to consider to do with the data created from the scan, using various digital tools that each serve a purpose towards a final goal of non-functional 3D-printed kidneys:

What a CAT scan machine does is take an X-ray while moving the patient (me) and rotating the x-ray aperture (emitter) and corresponding sensors. The procedure took a couple of minutes, and the result was thousands of individual x-ray image “slices” from all different angles. Using clever maths, it’s possible to use those shots from multiple angles to determine the density of whatever is being imaged. In this case, it was my abdomen and kidneys. The darker areas shows are areas that did not absorb much radiation: skin, muscle, fat, etc. The lighter areas are areas that bounced back much of the radiation, namely my organs and bones.

The CT tech’s computer takes all of these individual slices, stitches them together, and creates a 3D model that they can analyze, and view in both 3D and 2D. The 2D slices generally correspond to the 3 planes of the body, Sagittal, Coronal, and Transverse, planes. Through these planes, they can pan back and forth through the body.

Read more here.

Read more here.


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


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