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x-rays, MRI's & CAT Scans
Transcript of x-rays, MRI's & CAT Scans
The name of the x-ray is used because of its unknown nature. X-Rays Continued... X-rays are made when negatively charged particles called electrons are fired at heavy plate made of tungsten
They do have harmful radiation that comes along with them. Cell damage from radiation can alert our DNA increasing the chances of our cells mutating during replication or turn cancerous Oh my MRI's MRI= Magnetic Resonance Imaging
Uses magnetic fields and the natural resonance of atoms to provide images of the human tissue
Does NOT use high levels of radiation (Slim to none is emitted) MRI's Continued... Use to be named NMR (nuclear magnetic resonance) but people did not like the fact that it contained the word nuclear
First image was produced in 1973 Kitty Kitty CAT Scans CAT=Computed Axial Tomography
It is also known as the CT (Computed Tomography) scan
Was invented in 1972 by British engineer Godfrey Hounsfield of EMI Laboratories, England and by South Africa-born physicist Allan Cormack of Tufts University, Massachusetts.
The first clinical CT scanners were installed between 1974 and 1976 CAT Scan's Continued... When you enter into a CAT scan, they lay you on a table and then leave the room
You are told to sit still and not move
The machine moves you into the little hole based on where you are getting the scan and then it starts spinning to get the images
There is no pain or anything that you can feel
The longest it takes is around 10 Minutes Sources http://www.radiologyinfo.org/en/info.cfm?pg=pedia-ct
http://go.galegroup.com/ps/eToc.do?inPS=true&prodId=GVRL&userGroupName=lom_westbloomhs&searchType=BasicSearchForm&docId=GALE%7C5BGY MRI's Continued... MRI's Continued... The properties used in the machine were developed by Wolfgang Pauli in 1924 Does NOT use ionizing radiation unlike x-rays and CT scans X-Rays continued... •X-rays are used to help treat diseases, such as cancer or a tumor by exposing them to radiation
•X-rays are very good at showing bone defects. So if you break a bone, it is most likely going to be x-rayed. X-Rays continued... Children are most vulnerable to radiation exposure while recieving and x-ray because their damaged cells grow rapidly, leaving more room for mutated cells to grow Procedure CAT Scans contiuned..... •Faster scanning helps to eliminate artifacts from patient motion such as breathing or peristalsis.
•Tremendous research and development has been made to provide excellent image quality for diagnostic confidence at the lowest possible x-ray dose. Comparison Of X-Rays, CAT scans and MRI's X-Ray CAT Scan MRI