Things to know about MRI Scan:- Procedure, Preparation, and Uses

Things to know about MRI Scan:- Procedure, Preparation, and Uses

MRI is a medical imaging technique that takes the assistance of magnetic field and computer originated radio waves that picture the body organs and tissues. MRI for a body uses a strong magnetic field, radio waves, and a computer to produce detailed images of your body’s interior. It helps to diagnose or track care for a variety of chest, abdominal, and pelvic conditions. If you are pregnant, MRI on your body can be used to monitor your baby safely.

Most of the MRI machines are massive, tubular magnets. The magnetic field momentarily realigns the water molecules in your body when you are lying inside an MRI machine. Radio waves cause these coordinated atoms to emit weak signals that are used to generate cross-sectional MRI images — such as slices in a bread loaf.

What is an MRI of the body?

MRI is a non-invasive procedure used for medical diagnosis. To create detailed images of internal body structures, MRI uses a strong magnetic field, radio waves, and a computer. MRI does not use radiation (x-rays). Detailed MR images allow physicians to scan the body and diagnose disease.

What is the need for an MRI scan?

For your doctor, MRI is a non-invasive way to examine your organs, tissues, and skeletal system. It produces high-resolution images of the body’s inside, which help diagnose a variety of issues. This procedure of scanning the body is painless.

What are the uses of MRI?

MRI scan technology represents a massive achievement for the field of medicine. Physicians, scientists, and researchers can now use a non-invasive method to explore the interior of the human body in great detail.

MRI evaluates the following things-

· Lymph nodes

· Blood Vessels

· Pelvic organs (includes the bladder and reproductive organs)

· Chest and Abdomen- heart, liver, kidneys, biliary tract, spleen, pancreas, bowel, and adrenal glands.

· Anomalies of spinal cord and brain

· Tumours and cysts

· Heart problems

· Inflammatory bowel disease

How to prepare for the procedure?

You need to wear a hospital gown, or you can wear your clothes also if they don’t have any metal attachment. As if magnets used, it will be critical to use. Guidelines on eating and drinking prior to an MRI differ among different examinations and facilities. Take food and drugs as usual, unless told otherwise. Most MRI scans use a contrast material injection. Whether you have asthma or allergies to iodine contrast content, drugs, food, or the climate, you may be asked. A contrasting element called gadolinium is widely used in MRI tests. Gadolinium can be used for patients with an allergy to iodine comparison. A patient is likely to be allergic to contrast with gadolinium than to the contrast with iodine. However, if the patient has a gadolinium reaction, it can be used after sufficient pre-medication. If there’s a possibility that a woman is pregnant, they should always tell their doctor and technologist. MRI has been used for pregnant women or their unborn babies since the 1980s with no records of any ill effects. If you have claustrophobia, then tell your doctor before so that he can prescribe a mild sedative prior exam. Leave all your jewelry and accessories at home before the scan. Metal and gadgets are not apt for an MRI scanner. The list includes-

· Jewellery, hearing aids, watches, credit cards

· Hairpins, metal zippers, pins and other metallic composition things which can distort MRI images

· Pocket knives, and eyeglasses body piercings and pens

· Mobile phones, electronic watches, and tracking devices.

Coloring used in tattoos can contain iron and might heat up during an MRI scan.

How does the MRI scanning procedure work?

MRI does not use radiation in comparison to x-ray and computed tomography (CT) tests. Instead, radio waves realign hydrogen atoms that exist naturally within the body. It induces no chemical changes in the tissues. As the atoms of hydrogen return to their normal position, they release varying amounts of energy depending on the type of fabric in which they are. The magnetic field is created in most MRI units by passing an electric current through wire coils. Certain coils are located in the system and are positioned, in some cases, around the part of the body that is being imaged. Such coils send and receive radio waves, creating signals which the computer detects. The patient does not come into contact with the electric current.

A machine processes the signals, creating a series of images, each displaying a thin slice of the body. The radiologist from different angles can examine such pictures.

MRI can tell the difference between infected tissue and healthy tissue than x-rays, CT, and ultrasounds.

The procedure goes as follows-

1. You will be put on the mobile examination table. You can use loops and bolsters to help you stay still and hold your position.

2. Devices containing coils that can send and receive radio waves can be positioned near or next to the location of the scanned body.

3. MRI tests usually require multiple runs (sequences), some of which can last for several

4. When using a contrast drug, a doctor, nurse, or technologist implants an intravenous catheter (IV line) into the vein of your hand or arm that will be used to administer the contrast content.

5. You will be put inside the MRI magnet. The technologist will do the test while working outside of the room on a computer system.

6. After an initial sequence of scans, if a reference agent is used during the test, it will be inserted into the intravenous line (IV). More images will be taken during or after the injection.

7. On the conclusion of the test, you might be asked to wait while the radiologist reviews the photos in case more is needed.

8. The entire analysis is typically performed in 30 to 50 minutes, depending on the type of examination and the devices used.

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