Things You Should Know About An MRI scan

You must have come across the term MRI whenever you visited a hospital, or you must have come across it through someone who visited a hospital. It is a technique which is used by doctors to study your body. Although a doctor will perform an MRI scan on your body. That’s why you need to read this blog to know all the things the doctor won’t tell you about an MRI.


  1. What is an MRI scan?
  2. Why an MRI scan?
  3. Things to get rid off before MRI
  4. Relax before MRI
  5. Complete MRI procedure in easy language
  6. MRI radiation
  7. Conclusion
  8. FAQ’s

What is an MRI scan?

Although a doctor will prescribe you an MRI test what exactly this technique is. So, First of all, MRI stands for Magnetic Resonance Imaging, and it is a medical imaging technique to form pictures of the physiological processes and the anatomy of the body. It helps doctors to find, watch and treat medical problems. MRI uses powerful magnets, radio waves and a computer to make the pictures of the inside of the body. 

Why an MRI scan?    

A doctor will tell you to have an MRI scan.

MRI pictures are more detailed and refined than those made with other methods. There are many reasons to have an MRI. MRI may find Body parts or Brain changes as in stroke; bleeding, such as bleeding in the brain; problems with you back such as a herniated disc and an injury inside the body such as a torn anterior cruciate ligament.

MRI scan

MRI image of a normal brain

MRI scan

Personal Items to be removed before MRI

  • Loose metal objects can hurt you during an MRI when they’re pulled toward the very strong MRI magnet. This means all jewellery has to come off, not only what you can see, and this includes belly-button or toe rings.
  • Before MRI you will remove all metal objects, and it is not safe to MRI with some medical implants, you should tell the MRI technologist about any metal device or implant you may have in your body such as a pacemaker.
  • Don’t wear makeup, nail polish or hair products on the day as they may contain metals which can interact with MRI magnets.
  • It would be best if you told about any tattoos on the body to the doctor. Tattoos contain a dye which can cause skin irritation or burn while scanning.

Relax before MRI

You may experience anxiety or fear inside the machine due to confined space or if you suffer from claustrophobia. So, before going in, just relax by having some snacks, going to the bathroom or only by closing your eyes and think about amusing things.

Complete MRI procedure in easy language

  • To prepare for an MRI, you will lie on a table just outside the scanner. MRI scanners are very noisy so you will probably wear earplugs or headphones, you should carry them from home in case not available in the hospital. Different objects, such as pillows and straps, will assist you to stay in the correct position.
  • Once you are ready the table will slide into the scanner (it could be closed MRI or open MRI), the area inside is very narrow in closed ones, but in Open MRI scanners, you won’t be surrounded entirely by machine. However, the images may not be as good in open MRI scanners as with closed scanners. For either type of scanner, the technologist will operate it from the next room, and you will be able to communicate with each other through a two-way speaker.
MRI scan
  • During the scan, magnets will generate a strong magnetic field; this will not affect you. Then the scanner will pass radio waves through your body; this will also not harm you. When the radio waves are shut off, the scanner will pick up energy signals from your body, and these signals are used to make the images.
  •  During the scan you will have to stay motionless so the images will be very clear, you may be asked to grasp your breath for a short time. MRIs may take thirty to forty-five minutes or longer to complete. 
  • In some cases, you may get contrast dye with your MRI, the dye helps make more explicit pictures after the MRI you can resume your normal activities. If you received a contrast dye, the technologist might ask you to drink plenty of water or other healthy drinks to help your kidneys remove the dye from your body.

MRI radiation

An MRI uses powerful magnetic fields and radio waves; it’s not a CT, or CAT scan, which uses X-rays. Getting an MRI does not exhibit you to radiation as an X-ray, CT or CAT scan would.


Doctors are Professional Person and need to handle many things. So, it is challenging for a doctor to guide and explain in detail every patient about any procedure. Here the details given are well researched and are from the experience of the patients. Hence, please read them and go prepared before having an MRI scan.

Also You can Read our Blog on Diabetes: A Guide to Healthy Eating Habits


Can MRI Scan detect Cancer?

Yes, an MRI Scan helps in Checking Cancer.

Who invented MRI Scan?

Raymond Damadian invented the First MRI Scanner along with Michael Goldsmith and Lary Minfoff.

What does an MRI Scan Stands For?

MRI Stands for Magnetic Resonance Imaging

Does an MRI Scan hurts?

No, it is a Painless Procedure

Why MRI Scan makes Noise?

MRI Machine has a Coiled Wire Electromagnet inside it when the current is sent through it the coil expands and makes noise.

Why MRI Scan is Expensive?

Firstly, MRI Machine is itself Expensive, and then hospitals have to pay for their maintenance and updating. These Machine require special Technologist to Operate.

Dr. Divaanshu Gupta

Dr. Divaanshu Gupta is a cardiac anaesthesiologist in Manipal Hospital, Jaipur. He has done his M.B.B.S. as well as M.D. Anaesthesia from S.M.S. Medical College. He has a vast experience of working in various critical care units of government as well as corporate hospitals.