Medical Imaging

How exactly do medical imaging and geometry relate to each other, you may ask. They are certainly different things, but maybe not as different as people might believe. The property that connects these two subjects is 3D reconstruction, which plays a major role in the geometry aspect of medical imaging. First of all, I should explain specifically what 3D reconstruction is: the use of numerical approximation to rebuild 2D images by a computer taking the 2D data slices, reading the data, and placing them in the exact place that the data requires them to be, which results in a data volume that then is saved in the computer. The data is then rendered and visualized to show what the 3D version should look like. The process is typically done by multiplanar rendering (MPR), surface rendering (SR), and volume rendering (VR) which are just different variations of 3D reconstruction . 3D reconstruction is most commonly used by the medical field to examine the interior of the human body through a variety of different medical imaging technologies, such as MRIs, CT scans, ultrasounds, PET scans, and x-rays. In …show more content…
Magnetic resonance imaging is a process that is used to examine tissues and organs inside your body by watching how atoms respond to a strong magnetic field. Using strong radio waves/signals, the computer searches for the frequencies for specific types of atoms. Even after the radio signals are turned off the atoms will still emit energy that they have absorbed. The computer then reads the pulses of energy that the atoms are emitting and constructs a 3D image of the scanned area. MRIs also allow physicians to create 3D images of larger sections of molecules and reconstruct areas where the tissue is too soft for x-rays to pick up. MRIs are used to look at organs and soft internal tissues, showing differences between normal and abnormal tissues without