bones) will absorb more radiation than soft tissues (i.e. X-rays pass through human body tissues and hits a detector on the other side. A heated cathode releases high-energy beams (electrons), which in turn release their energy as X-ray radiation. CT imaging Physics of CT ScansĬomputed Tomography (CT) uses X-ray beams to obtain 3D pixel intensities of the human body. You may skip this section if you are already familiar with CT imaging. We will start with the very basics of CT imaging. If you want to focus on medical image analysis with deep learning, I highly recommend starting from the Pytorch-based Udemy Course. To dive deeper into how AI is used in Medicine, you can’t go wrong with the AI for Medicine online course, offered by Coursera. The accompanying Google colab notebook can be found here to run the code shown in this tutorial. I also include parts of the code to facilitate the understanding of my thought process. New practitioners tend to ignore that part, but medical image analysis is still 3D image processing. It is critical to understand how far one can go without deep learning, to understand when it’s best to use it. ![]() The goal is to familiarize the reader with concepts around medical imaging and specifically Computed Tomography (CT). However, this time we will not use crazy AI but basic image processing algorithms. Time for some hands-on tutorial on medical imaging.
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