MRI Specialist
At San Diego Arthritis Medical Clinic, Dr. Michael Keller is a board certified physician who specializes in various diagnostic procedures, including MRIs and ultrasounds. The doctor and his staff serve the residents of San Diego and El Centro, CA and many of the surrounding towns.


What Is an MRI?

An MRI is a diagnostic tool that uses both radio waves and a magnetic field to produce three dimensional images of the inside of the body showing details of organs, tissues, and bones. MRIs are used to see inside abnormal sections of tissues and tumors. The machine used to create the MRI images comes in many forms. Some are long tubes with a track that carries the patient into the tube where the magnets are able to spin completely around the body. New technology has allowed for machines that are less confining. The new machine consists of a large circular device that the body travels through. It is more open and is better for individuals who are afraid of confined spaces.

What Conditions Can an MRI Help Diagnose?

MRIs can diagnose many different health conditions and injuries. Prostate conditions, sports injuries, gastrointestinal problems, musculoskeletal abnormalities, sports injuries, conditions of the brain, such as dementia and Alzheimer's, are just a few of the most commonly diagnosed conditions. Because the MRI produces a three dimensional image of the body being examined, doctor's can see almost every detail of the area. There are many things that an MRI cannot determine. A few of these are pregnancy, metallic or foreign objects in the eye, cochlear implants, and cardiac pacemakers.

Are MRI's Dangerous?

The human body is made of almost 70 percent water and is constantly exposed to magnetic fields within the environment. Doctors and radiologists claim that MRI's are less dangerous than x-rays and other diagnostic tools that employ the use of radiation. In most cases, the exposure to the radio waves that help to produce the images is so minimal that no side effects are produced. MRIs that require the use of a "contrast" or dye are a slightly different story. Contrasts and dyes contain certain elements that many people are sensitive to. Allergic reactions can occur that produce rashes, headaches, stomach upset, and diarrhea or constipation.

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