Local medical imaging has become a big business in the past ten years. Several small local imaging centers have been formed across the world to bridge the gap between hospital wait times and the need of the patients. Local medical imaging provides such services as MRIs, X-Ray, CAT Scans, and ultrasounds. Before you are someone you love becomes ill, you may want to check your knowledge of local medical imaging tests. For instance, do you know what CAT scan is? What if you doctor ordered a MRI scan would you know what you option are? To help you be better prepared if you doctor orders one of these exams for you or someone you know, here is some general information on X-rays, CAT scans, MRI scans, and Ultrasounds. Lets see what you may not know. X-rays are a form of radiation that passes through your body and when they hit a detector, such as a photographic film, they produce an image. The tissue such as muscle appears in shades of grey. If there are any abnormal stuff like, a broken bone it will show up very clear on the x-ray. Doctors also order X-rays to check for things such as, fractures and heart problems like an enlarged heart. CAT Scans may be recommended when there is a need to check you soft tissue to help find things like cysts, as well as a coronary arteries and many other internal organs. Your local imaging center also has new wonderful cardiac CAT scanners that let the doctors check for suspected heart disease and often eliminate the need for people go through invasive cardiac arteries and other internal organs. This is very convenient at your local medical imaging center cause this procedure only takes 10-15 minutes with only one single breath.