MRI Full Form Name

Full Form of MRI :

Magnetic Resonance Imaging

MRI Full Form is Magnetic Resonance Imaging. MRI is an imaging technique used by physicians in order to diagnose the internal organs to treat them. MRI makes use of radio frequency pulses and a strong magnetic field to give detailed pictures of the targeted organs on a computer screen. It can also take pictures of tissues, bones, and almost any internal structure of the body. MRI is different from x-ray as ionizing radiation is not used.

A detailed MRI picture or image can help doctors to analyze parts of the body in order to identify the diseases present based on the symptoms. These images can be printed out to maintain hard copies of reports. It is absolutely painless and very safe for all ages. Nuclear Magnetic Resonance Imaging (NMRI) and Magnetic Resonance Tomography (MRT) are the other terms used to refer MRI technique in the medical field.

MRI Full Form – Additional Information

Our body is an amazing specimen that has many wonders to explore. These wonders are nothing but our different organs which are well protected in the cage of the body. So when something goes wrong with us physically the need to study these inner organs to ascertain where the problem lies arises. These studies were initially conducted by using X-ray, CT scan (computed tomography) or ultrasound scan.

What is MRI?

MRI is a body test that is conducted using a powerful magnetic field and series of radio wave energy that forms a digital image of the internal structure of the body and the various organs therein. The advantage of MRI is that since the images are digital, they can be saved on the computer for future reference. MRI helps in giving a different perspective to the images created through X-ray, CT scan etc and that helps the doctors to get a clearer picture of the organs and the problems that are present. In order to accentuate some areas for better study during operations or investigation, a contrast dye material is injected intravenously.

The other scanning methods are unable to show internal problems effectively like bleeding, hemorrhage, damaged cells, and tissues, etc. Thus, it is necessary to perform an MRI to understand the proper gravity of the injury or ailment. During MRI, the person is placed in an enclosed machine unit that has a powerful magnet installed. The scan is conducted by an MRI technologist and the results are interpreted by a trained radiologist. However, other specialist doctors too can study the MRI scan reports and take action likewise.

Preparing for MRI Scan

MRI scanning is done under special conditions and there are certain procedures to be followed before a person can take this test. Most important is getting ready for the scan. Since the person is subjected to a magnetic field, it is essential to remove any metal objects present on the person. This includes jewelry, metallic hair clips, bracelets, belts, watches, etc. Personal use equipment like a hearing aid, dentures, braces etc are to be removed as they too can be attracted by the magnet and cause harm.

The patient’s medical history is studied to ascertain if there are internal metallic objects implanted like joints and rods for orthopedic use, pacemaker and stents for a heart condition, etc. In order to get a proper scan done, depending upon the area to be scanned, the patient is asked to remove all clothes and given a gown to wear. Sometimes underwear may be allowed. If you are permitted to keep the clothes on in case of head or upper body scan, it is still advisable to empty the contents of the pockets like coins, credit, and debit cards etc. The ATM/credit cards have a magnetic scanner strip and there are chances that high-power MRI magnet may erase the data off the strip.

Understanding The Procedure of MRI Scan

Once the person is prepared for the scan, he/she is asked to lie down on the back on a stretcher table that is part of the scanning machine. It is necessary to be absolutely still while the scan is in progress. Thus, the head, arms, and chest is strapped securely to the table. The sliding table then is passed in the scanner unit in the presence of the magnet. A coil-like device is positioned over or enfolded around the spot to be scanned. A particular belt strap helps to monitor the person’s breathing and heartbeats. This enables the machine to take images at the time when the person is relaxed and comfortable.

The mere thought of passing through a big, enclosed magnetic field makes people uneasy and nervous. Nonetheless, presently there are machines that conduct open MRI scan. However, the images obtained are not of the high quality of the enclosed unit. The doctors give sedatives to the person to calm him down. This is essential because the person needs to be as still as possible on the table to ensure that the scan is done perfectly without any disturbed images. The inside of the scanning machine has a fan and one can feel  the air moving and the tapping and snapping sound when the images are being taken.

In order to calm the patient, headphones with music attachment or earplugs may be given to diminish the machine noise. During the scan, the person is alone inside the scanning area but is observed through a window by the technician. There can be two-way communications with the technologist over an intercom and the person subjected to scan can inform of his condition like a headache, nausea, dizziness, breathlessness, etc to adjust / interrupt the scan accordingly. In the case of special screening, contrast material can be injected intravenously for 1 to 2 minutes.

Why is MRI Necessary?

MRI is necessary because there are certain areas of the body that cannot be effectively scanned by normal scanning machines. The MRI is usually done of the following body areas:

  • Head: To see if there are any abnormalities in the blood vessels, pituitary glands, clots in the brain, to ascertain the cause of headaches, damage due to injury, etc. Besides this, there can be a study of water in the brain, tumors, abscesses, checking eyes and ears for optic or auditory nerves damage.
  • Abdomen: To check for any tissue damage or tumors. MRI can detect if the tumor is cancerous or not. To check for blockages in the bile duct or urinary tract, to inspect the organs before transplantation or surgery to see if the blood vessels and organs are in good condition.
  • Knees: MRI of knees predicts any damage to ligaments, knee cap, joints, etc. It can detect any bone tumors or signs of arthritis as well as inflamed cartilage or tendons.
  • Shoulder: To detect any snapped ligament, cartilage or tissues, to find the cause of shoulder pain, injury to shoulder blade, etc.
  • Spine: MRI of the spine can help detect slip disc, pressed nerves, signs of tumor spread from lung, prostate or breast cancer, any kind of infection, compression fracture, damaged nerves as a result of injury or multiple sclerosis and so on.
  • Breast: This area is mainly scanned for detection of breast cancer.

Risks and Results of MRI

After the screening, the MRI discloses

  • Any abnormalities in the organs like growth of tumors in different locations in the body
  • damaged nerves, tissues or ligaments
  • detect any blockages in blood vessels, bile duct or urinary tract for clots or stones etc
  • The size of an internal organ, if it is enlarged or small or any part is missing or damaged.
  • Accumulation of abnormal fluid in and around vital organs like heart, liver, lungs etc
  • Broken bones due to injury or infection
  • Problems in the spine and nervous system and probable causes of dementia, Alzheimer’s disease or multiple sclerosis.

Even though MRI is a safe testing method for thorough detection of internal injury and organ condition, there may be a few risks involved and that is totally depending upon the person’s physical state. MRI cannot be done if a person is pregnant or just had a major surgery that needed a metal implant. Persons with a kidney problem, anemia or diabetes need to disclose their condition to the doctor because the contrast material that is used during MRI may not be suitable for such states.

Cosmetic implants, braces, metal clips, metallic stents or pacemaker can cause a problem during the scan and it is not advisable for these people to undergo MRI but to opt for other means of scanning. MRI is an advanced method of anatomical detection and is very useful for critical condition surgeries and treatments. However, it is best left to the discretion of the technologist to finalize if a person is fit to take up this procedure.

Full Form of MRI – Magnetorotational Instability

MRI Full Form is Magnetorotational Instability. MRI is basically an instability that is caused in a disk or any other differentially rotating system present from the magnetic field’s action. This instability can result in the turbulence of large scale in a very small period of time. The growth of an MRI takes place on a dynamic timescale, and this timescale is inversely proportional to the rotational frequency.

A poloidal magnetic field, that is, a field that points in the disc’s normal direction, of a weaker strength is one of the essential conditions of the occurrence of the MRI. Another essential condition for this instability to occur is the differential rotation of the disc. Now, the astrophysical discs that have differential rotation are quite common, and the magnetic field is found everywhere. Hence, the MRI takes place in various astrophysical settings, like in proto-planetary discs, galactic discs and X-ray binaries.

Chandrashekhar and Velikhov studied the dynamics of the MRI in the 1950s. Hawley and Balbus were the ones responsible for demonstrating that the manifestation of the MRI is possible in the accretion disc. This accounted for turbulent mixings that needed for explaining the observed rate of mass acceleration.

One of the highly complex problems of non-linear nature is to model the interplay between the magnetic fields that acts on plasma which is rotating differentially. This problem is only tractable through the simulations. There are various numerical experiments that were set up for simulating the MRI growth on different scales. These experiments include the local shearing boxes, axisymmetric discs, and full three-dimensional disc simulation.

According to the results obtained from these simulations, the flow that occurs due to the MRI’s result is turbulent instead of being viscous. Although the growth of this instability does not depend on the strength of the initial field, the strength of the field has a significant effect on the size scale of the growing modes. It was also noticed that this instability also functioned as an effective dynamo that aligns and strengthens the disc’s magnetic field. Due to this action of the dynamo, the jets are launched in a direction perpendicular to the disc.

MRI Full Form – Meteorological Research Institute

Full Form of MRI is Meteorological Research Institute. MRI is a facility of the JMA or Japan Meteorological Institute that does research for clarifying and supporting the hydrological, terrestrial and meteorological phenomena predictions. It also helps in the development of the associated technologies and techniques. Additionally, it provides assistance in the advancement of the technology used in the meteorological services.

Japan is among those countries in the world that have frequent experiences of conditions resulted from the natural disasters like volcanic eruptions, typhoons, torrential rainfall, earthquake and other violent natural events. One of an essential issue that this nation faces today is to mitigate these disasters and make the society more secure. The JMS helps by providing information that can assist in decreasing the aftereffects of natural disasters supports safety in traffic, improve the lives of people, and foster development of industries. There are other research communities and organizations that MRI collaborates with. IT also contributed to global bodies like the IPCC (Intergovernmental Panel on Climate Change).

There are seven departments in the MRI. The first department is the Forecast Research Department. This department studies weather phenomena like tornadoes, heavy rainfall, and torrential rain. It also develops atmospheric numerical models of high resolution and accuracy for supporting the predictions of severe weather events. The second department is the climate research department that research on the advance prediction of the climatic condition for the projection of global warming and seasonal forecasting.

The third is the typhoon research department that researches the generation of tropical cyclones, their tracking, intensification, transition, and intensity. The fourth is the Atmospheric and Applied Meteorology department that deals with research on urban heat islands, ozone depletion, global warming and regional air pollution. The fifth is the Volcanology department that studies the volcanic eruptions’ description, and the systems, tools, and machinery utilized for observing the volcanic activity.

Full Form of MRI – Manchester Royal Infirmary

MRI Full Form is Manchester Royal Infirmary. MRI is basically a hospital that is located in Manchester (England). Charles White founded this hospital in the year 1952. During that time, it served as cottage hospital that had a capability of taking care of twelve patients. Presently, the MRI is a portion of the NHS Trust. The trust incorporates several other hospitals and is known as the CMFT (Central Manchester University Hospital NHS Foundation Trust).

Today, the hospital contains more than seven hundred and fifty beds. It specializes in pancreatic transplants, renal surgery and medicine, cardiology and kidney transplants.  The emergency department of this hospital has the capability of dealing with over one hundred and forty-five thousand patients every year.

The MRI also serves as a teaching hospital for the Medical School of the Manchester’s University, and also as a regional center for sickle cell disease and hematology. Its Heart Center is the major cardiac service provider in the region and specializes in the cardiology and cardiothoracic surgery.

MRI has seen numerous medical breakthroughs. The most recent one was being the first hospital in the United Kingdom to have conducted one thousand cochlear implants. In the year 1988, the foundations of the Manchester Diabetes Center were laid, and it was the first center in the UK to be dedicated entirely to diabetes. In the year 2009, an eye hospital and a children’s hospital were also added.

Some of the additional departments in the MRI include Allergy services in hospital, Colorectal cancer services, Dermatology, Complementary Medicine, Ear, Nose & Throat; Endocrinology and Metabolic Medicine, Endocrine and thyroid surgery, General Medicine, Gastrointestinal cancer services, Geriatric Medicine, General Surgery, Orthopedics, Respiratory Medicine, Rehabilitation, Sexual health services, Rheumatology, etc.

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https://en.wikipedia.org/wiki/Magnetic_resonance_imaging

http://www.webmd.com/a-to-z-guides/magnetic-resonance-imaging-mri

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