The concept I am choosing to write about is Magnetic Resonance Imaging or MRI’s. I was never sure what an MRI was, but I knew it was similar to an x-ray. An MRI is different in from an x-ray in many ways. An MRI is a machine that allows doctors to look at soft-tissue with out opening the body. This allows doctors to see tumors, tears, or narrow slices. The MRI machine allows doctors to see very detailed and important parts of the body without making any incision. This machine was a huge advancement in the medical field because it can see almost every detail; this is due too the machines great spatial resolution. The spatial resolution on an MRI scan can go millimeters, so the doctors can see all the tissue and organs. My first experience with an MRI was this past school year. During the school baseball season, I dislocated my shoulder, an obvious injury the doctor can see from outside the body. However, the doctor told me it was necessary for me to receive an MRI in-order to tell if I tore any of the muscles in my shoulder. I had gotten x-rays in the past, but the MRI experience was much different. I laid down on a bed and was put into this big machine. After 15 minutes or so I was pulled out of the machine and was sent home. When my results arrived, they found further injury. The doctor told me I had torn my labrum and had chip out on my shoulder socket due to my shoulder being popped back in. The MRI allowed the doctors to see past just the dislocation and discover that I had torn a ligament. This related back to class because doctors always use MRI’s. They are often used to study the functions of the brain. Doctors can have patients perform task while they use an MRI’s to watch different functions of the brain. This was a huge advancement because previously they would have to open the body but now they can use this machine to study vital organs while patients complete tasks that make the brain work in different ways.