Let's simply learn about the MRA (Magnetic Resonance Angiography) test to find problems in your blood vessels!

Dear friend, sometimes when a doctor asks you to do an `(MRA)`, it is normal to feel a little nervous. "What is this new?" "What is this looking at?" Many questions may come to mind. So, today we will talk about this test called `MRA (Magnetic Resonance Angiography)` very simply, in a way that you can understand. It is like talking to a friend.

What is an MRA (Magnetic Resonance Angiography)?

Simply put, an MRA is a special scan that looks at the blood vessels in your body and how blood moves through them. It's actually part of an MRI (Magnetic Resonance Imaging) test. But an MRA focuses specifically on your blood vessels - the arteries that carry blood away from your heart and the veins that return blood to your heart.

This test can noninvasively detect any narrowing, enlargement, or blockage in your blood vessels. Unlike a typical angiography test, this test does not require a catheter to be inserted into a blood vessel.

Your doctor can use the information from this MRA test to accurately diagnose a blood vessel condition, such as a narrowed artery. It can also be helpful in monitoring changes in blood vessels and planning for surgery.

What can be seen with an MRA?

Now, let's see how this `MRA` can see the blood vessels in every part of our body.

• Your aorta (this is the largest blood vessel that carries blood from the heart to the entire body).
• Arteries throughout the body, especially if you have inflammation of the blood vessels (a condition that causes blood vessels to become swollen) such as ``Vasculitis`` or hardening/scarring of the blood vessels (atherosclerosis) .
• Cerebral blood vessels .
• The main arteries in the neck (carotid arteries) (these are the ones that supply blood to the brain).
• Coronary arteries of the heart (these are what supply blood to the heart muscle).
• Peripheral arteries carry blood to the arms, hands, legs, and feet .
• Pulmonary arteries .
• Renal arteries .

What diseases can be detected with an MRA?

Okay, so what kind of medical conditions can be diagnosed with this `MRA` test?

• Aortic dissection : This is an emergency, serious condition.
• Balloon-like bulges in blood vessels (Aneurysms) : These can burst.
• Abnormal connections between arteries and veins (Arteriovenous malformation - AVM) : These can disrupt blood flow.
• Artery stenosis : This reduces blood flow to the relevant organ.
• Atherosclerosis : This is also a cause of blood vessel blockage.
• Congenital heart disease : Sometimes there can be problems with the blood vessels.
• Blood clots in the deep veins of the legs (Deep vein thrombosis - DVT) .
• Pulmonary embolism (PE) is a blood clot in the blood vessels of the lungs .

What specifically does a brain MRA look at?

An MRA test of the brain can detect things like:

• Brain aneurysms .
• Symptoms of a stroke (may be caused by a blocked or burst blood vessel).
• Vascular malformations .
• Sometimes, it is also used to find the cause of persistent severe headaches (secondary headaches) .

Are there types of MRAs?

Yes, there are different types of `MRA` tests. Let's see what they are.

• Contrast-enhanced MRA : In this , a special liquid (contrast dye) is injected into a vein in your arm. This liquid makes the blood vessels very visible during the examination. This is a great help in diagnosing the disease.
• `(Non-enhanced MRA)` : In this, the special liquid `(contrast dye)` is not given. If you have a certain health condition (for example, if you have severe kidney disease) and it is not safe to have the liquid, the test is done this way.
• Two-dimensional (2D) MRA : The images produced by this are in 2D. Doctors usually use this when they need to see a long section of a blood vessel.
• Three-dimensional (3D) MRA : This produces 3D images. It is used when you want to see a large number of arteries grouped together in a small space (for example, the Circle of Willis in the brain).

How does the MRA test work?

An MRA test uses a strong magnetic field and radio waves to create images. Your doctor can view these images on a computer screen. Importantly, it doesn't use any radiation, like an X-ray. It uses the energy your body emits when it's in a magnetic field.

How do you prepare for an MRA?

Before an MRA test, your doctor will ask you several questions and discuss your health history. These are some of the most important:

• Do you have any metal objects inside your body? (e.g., a surgical device, a metal object that was inserted in an accident). These can interfere with the magnetic field of the MRA and be dangerous.
• Do you feel uncomfortable or afraid of being in small, cramped spaces (claustrophobia)? If so, the doctor may give you a sedative before the scan. This will help you relax. Alternatively, some places have open MRI machines , which are less cramped.
• Are you pregnant or breastfeeding? You should inform your doctor about this.
• You should tell your doctor about any other health conditions, allergies, or surgeries you have had. Especially if you have kidney disease or liver disease, you may not be able to have the contrast fluid.

Follow your doctor's instructions carefully about how to eat, drink, and take medications before the MRA test.

Important: If you take a sedative before the scan, you will need to bring someone to take you home after the test.

What to expect when having an MRA?

Okay, now let's see what kind of experience you will have when doing the `MRA`. There is nothing to be afraid of, knowing these steps will give you a sense of relief.

1. You are made to lie down on a table, which is designed to be pushed in and out of the `(MRI machine)`.

2. The MRI machine is a bit loud, so you will be given headphones or earplugs to reduce the noise.

3. The medical staff will remind you not to move during the scan. This is because if you move, the images may not be clear. Sometimes you will be asked to hold your breath for a while.

4. If you need to talk to the MRI operator, they will give you a small ball-like object to squeeze. They will watch you from the other room and can talk to you.

5. Then, the table you are on goes into that big, round ``(scanner)`` with a big hole in the middle.

6. The MRI machine is turned on and the scan begins.

7. Sometimes, the staff will inject a contrast agent (a special liquid) through an IV in your arm. This may cause a slight metallic taste in your mouth for a few seconds . This is normal.

8. Then take some more pictures.

9. Finally, you take the table you are on out of the machine.

10. The `(IV)` that was in your hand will also be removed.

An MRA examination usually takes between 20 and 60 minutes to complete.

Are there any risks with this test?

This is a question that many people ask. The MRA scan is generally a very safe, noninvasive test. As mentioned earlier, no radiation is used. The only thing that goes into your body is the contrast fluid (which is not given to everyone). If you are at risk of problems with the fluid (such as kidney failure), the scan can be done without the fluid.

However, very rarely, some people may experience minor side effects (such as headaches, stomach upset, or allergic reactions) from the contrast fluid. But that is very rare .

What happens after the MRA?

If you took a sedative to help you relax before the scan, someone will need to drive you home. If you did not take any sedatives, you can drive yourself and resume your normal activities.

How long does it take to receive the report?

It usually takes a few days for the MRA scan images to be reviewed and a report prepared by a radiologist to be sent to your doctor. If you have not heard anything after a week, contact your doctor.

What is in the report you receive? What does it say?

Your doctor will tell you if the test found any problems with your blood vessels or other areas they looked at. Depending on your symptoms, they may be looking for a specific condition. An MRA can confirm the condition and show how serious it is.

Sometimes when you read the report, you may see the word “unremarkable.” This means that the test was normal, meaning that nothing of concern was found .

Sure, the machine involved in the MRA can be a little scary. But remember, you can wear headphones to block out the noise, and you can take a sedative if you're afraid of getting stuck. The only thing that goes into your body is the contrast fluid that's given through the IV (and only if necessary).

An MRA test gives your doctor a lot of valuable information about your body. This information helps them diagnose the disease accurately and provide you with the best treatment you need.

The most important things to keep in mind (Take-Home Message)

So, these are the main things you need to know about an MRA (Magnetic Resonance Angiography) test.

• MRA is a safe test that helps detect problems with blood vessels.
• No radiation is used in this.
• Before the test , answer the questions your doctor asks correctly and discuss any fears or concerns you have with him or her.
• If you have any questions about the contrast fluid or claustrophobia, please let us know in advance.
• Follow the doctor's instructions exactly.

I hope this information has given you some confidence to undergo an MRA test. If you have any questions, don't hesitate to ask your doctor. Stay healthy!

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