MRI Advantages And Disadvantages

Medical imaging is used to create visual images of the interior part of the body so that it would be easier to examine, diagnose & treat patients without the need of surgical processes. This process is used to see what is beneath the skins and bones to find any abnormalities present.

- Discovery of X-rays led to other majors and improved diagnostic tools such as CAT scan which will lead to the conception of PETT scan and MRI.

MRI uses the body’s natural magnetic properties to formulate an image of the soft tissues. It does this by using the hydrogen atom nucleus which has a single proton and is a spinning charged particle. The human body is made up of 70% water, which is hydrogen and oxygen. Those hydrogen nuclei (protons) spin inside the body, creating their own magnetic field. They are orientated randomly and cancel each other out when no field is applied.

An MRI uses computer-generated radio waves and a strong magnetic field to produce a detailed image of the brain. “MRIs are helpful in the diagnosis of tumors, eye diseases, infections, inflammation, and damage due to head injury” (Hill 2008). When getting an MRI, you lay on a table that slides into a tube, and they use computer-generated radio waves and a very strong magnetic field to see images of the brain. This test will allow the doctor to see two and three-dimensional images of your brain.

The prices can vary greatly state to state. Unfortunately, it falls on the patient if it is a scheduled exam to “shop around” to get the best price available to them. Just like the MRI machines, these scanners can run anywhere from $65,000 to 2.5 million dollars. Where CT excels over MRI, is the fact that anyone who has metal in their body that is not removable, can have this scan with no issue. The scan itself is faster, for the patients who may be claustrophobic, this gives them some peace of mind. It also does not produce the loud banging noises that the MRI gives off. The only real contraindication would be any contrast allergies. CT can still be performed without contrast, but the areas of interest won’t be highlighted as well. A typical scan takes about fifteen to thirty minutes, depending on what anatomy is being looked at.

“This MRI machine, or magnetic resonance imaging machine, is the most advanced and safest way to produce a magnetic image of the human body. Strong magnetic waves align the patients hydrogen atoms within the bodily tissues and cause them to vibrate and point in the same direction. Radio wave frequencies then disturb the hydrogen atoms so that they return to their natural randomized order. The imaging part of the machine then records and translates the data onto this screen here so that we are able to examine the patient’s brain, spine, soft tissues,and joints, which are the most common uses for an MRI (Sternlof). Why are we able to determine where the cancer or the tumor is by the image that is produced?” I asked. I was curious if anyone was slightly familiar with the information I had been talking about. A tall, brown haired man in the back of the

The MRI scanner is a large magnet that is 30,000 times stronger than the earth’s magnetic field. The force increases as a person or a ferromagnetic object move closer to the magnet. The strong magnetic field of the MR scanner is Always on even when the MR scanner is not in use.

Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. In many cases, MRI gives different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. MRI also may show problems that cannot be seen with other imaging methods.

MRI technology is still in its infancy. The first MRI exam on a human being ever taken was on July 3, 1977. MRI has been in widespread use for less than 20 years (compared with over 100 years for x-rays). There is still a long future for MRI. It is only the beginning. We can now image in seconds what used to take hours.

The MRI is possible in the human body because our bodies are filled with small biological ?magnets?, the most abundant and responsive of these are the protons. The principal of the MRI is that it utilizes the random distribution of protons, which have basic magnetic properties. Once the patient is placed in the cylindrical magnet, the diagnosis process follows 3 steps. First, MRI

An MRI (magnetic resonance imaging) is a scan that uses a system of techniques, involving magnetism, radio waves and a computer to generate detailed images of the human body. Essentially, it is a tube encased by a large circular magnet. The patient would be placed on a moveable bed, which is then inserted into the tube. The magnet then creates a strong magnetic field that aligns the protons of hydrogen atoms. These hydrogen atoms come from the human body, which is 50-65% H2O. These atoms are exposed to a beam of radio waves. This spins the various protons of the body. As they spin, they produce a slight

The Magnetic Resonance Imaging (MRI) scan is a structural scan, which means that it can show the structure of the brain but not the function of it. It is mostly used to look at the tissues of the brain to detect any damage done from accidents, brain tumors or any other abnormality that could affect the structure of the brain. Advantages of the MRI scan include the excellent quality and resolution of the images

The advantages and disadvantages of digital radiography can differ from technician to technician. Older generation technicians are usually set in their ways and do not like change very much. They did not grow up around digital radiography as say a young technician. The younger generation now a days learned about digital radiography in school and have a lot of good things to say about it.

Medical or Diagnostic Imaging refers to the various techniques that can be used to see inside the human body. Its non-invasive nature means that the body does not have to be opened up surgically for medical practitioners to view the organs anatomically. In clinical settings, it can be used to aid in the diagnosis or treatment of different ailments. Many kinds of medical imaging techniques have already been developed, each with their own advantages

MRI (Magnetic Resonance Imaging) scanning is a technique that uses a very strong magnetic and radio frequency waves to produce an image of the body. MRI scanning machine was invented by a scientist named Raymond Vahan Damadian in 1969.