COVID recovery MRI what to expect

Overview

An MRI (magnetic resonance imaging) scan is a safe, painless test that uses strong magnets and radio waves to create detailed pictures of the inside of your body. If you are recovering from COVID-19, your doctor may suggest an MRI to check for problems in your lungs, heart, or brain, especially if symptoms like breathlessness, chest pain, or 'brain fog' continue for weeks or months.

MRIs are becoming more common as part of follow-up care for people recovering from moderate or severe COVID-19, especially for those with ongoing heart, lung, or neurological symptoms. That said, not everyone who had COVID needs an MRI — it is used only when your doctor thinks it will help answer a specific question.

An MRI during COVID recovery may be recommended for adults who had severe COVID-19, were hospitalised, or who have lasting symptoms such as breathlessness, fatigue, chest pain, or problems with memory and concentration. Children can also have MRIs if their doctor thinks it is needed, but this is less common.

Symptoms

Common symptoms

• Ongoing shortness of breath or feeling breathless after light activity
• Chest pain or tightness that is not new or getting worse
• Persistent fatigue that does not improve with rest
• Heart palpitations or an irregular heartbeat feeling
• Headaches, dizziness, or 'brain fog' (trouble focusing or remembering)
• Numbness, tingling, or weakness in the arms or legs
• Swelling in the legs or feet

Symptoms in children

• Persistent tiredness after COVID infection
• Breathlessness with usual play or school activities
• Chest discomfort during exercise
• Difficulty concentrating in class or with homework

Symptoms in older adults

• Feeling weak or more confused than usual
• Shortness of breath with simple tasks like dressing
• Chest pain or pressure
• Swelling in the legs or feet that is new

Causes

Main causes

• COVID-19 can cause inflammation in the heart (myocarditis), lungs, or brain, which an MRI can help detect.
• Blood clots or damage to small blood vessels may remain after the infection.
• The immune system may continue to cause inflammation even after the virus is gone.

Risk factors

• Having had a severe COVID-19 infection or being in hospital with COVID
• Older age
• Having existing heart, lung, or kidney conditions
• Having diabetes, high blood pressure, or obesity
• Having ongoing symptoms for more than 4 weeks after infection

When to see a doctor

See a doctor urgently if:

• If you have new or worsening chest pain, shortness of breath, fainting, or any symptom that feels life-threatening, call your local emergency number right away.

Book a routine appointment if:

• If you still have symptoms weeks after COVID-19, such as breathlessness, fatigue, or brain fog, make an appointment with your doctor.
• If your current recovery is not going as expected, ask your doctor whether imaging like an MRI could be helpful.

Diagnosis

An MRI is not a routine first test for every COVID patient. Your doctor will first check your symptoms, do a physical exam, and may order breathing tests, blood tests, or a chest X-ray. If those suggest a problem that needs a closer look, they may then arrange an MRI to assess the heart, lungs, or brain.

Tests that may be done

• Chest X-ray (often done first to look at the lungs)
• CT scan (another type of imaging that looks at the lungs or blood vessels)
• Echocardiogram (ultrasound of the heart) to check heart function
• Blood tests to check for inflammation or blood markers
• MRI (magnetic resonance imaging) of the heart, lungs, or brain for more detail

What to expect at your appointment

For an MRI, you will lie on a padded table that slides into a large, doughnut-shaped machine. The scan itself is painless, but you will hear loud tapping and thumping noises — that is normal. The radiographer (the person running the scanner) will give you ear protection and a call button so you can speak to them. If you have a contrast dye, it is given through a small tube in your arm. You will need to stay still and may be asked to hold your breath for short periods. The whole visit usually lasts about 30 to 60 minutes, and you can leave afterwards unless your doctor tells you otherwise.

Treatment

An MRI only creates images — it is not a treatment. The results help your doctor decide what kind of care or support you need. Treatment for COVID recovery depends on what the MRI finds and which organs are involved. It may include rehabilitation, breathing exercises, cardiac monitoring, or medication for issues like inflammation. Always follow your doctor's recommendations.

Self-care at home

• Pace yourself — rest between activities and gradually increase activity as you feel able.
• Stay well hydrated and eat a balanced diet.
• Follow your doctor's advice about when it is safe to exercise.
• Keep a symptom diary so you can report changes to your care team.

Medical treatments

Based on MRI results, your doctor may refer you to specialists such as a cardiologist (heart doctor), pulmonologist (lung doctor), or neurologist (brain and nerve doctor). They might prescribe medicines to manage inflammation, control heart rhythm, or treat other findings — but any medication and its exact dosing should be discussed with your doctor. No treatment should be started without a full assessment by a qualified healthcare provider.

When is surgery considered?

MRI scans for COVID recovery are for diagnosis, not treatment, so surgery is not part of this procedure. In rare cases, if an MRI finds a structural problem that needs a surgical fix, your specialist team will discuss that with you thoroughly — but this is uncommon after COVID.

Living with this condition

If you need an MRI as part of your COVID recovery, think of it as a useful step to understand your body's healing. In the days after the scan, you can usually resume normal activities right away unless the radiographer or your doctor advises otherwise. If you had contrast dye, drink plenty of water to help flush it out, unless you are on fluid restrictions.

Lifestyle tips

• Prioritise good sleep to support recovery.
• Avoid smoking and excessive alcohol, which can slow healing.
• Try stress-relieving activities like gentle stretching, mindfulness, or listening to calming music.
• Keep all follow-up appointments with your healthcare team.

Diet and exercise

Eat a diet rich in fruits, vegetables, whole grains, and lean protein to support overall recovery. Exercise must be tailored to your ability — start with very light activity like short walks or gentle stretching, and only increase gradually under your doctor's or physiotherapist's guidance. If you have heart or lung involvement, do not push through symptoms like breathlessness or chest pain.

Mental health and emotional wellbeing

Worrying about the results of an MRI, or about a slow COVID recovery, is completely normal. It can be stressful to lie in a scanner and wait for answers. Try to focus on the fact that this scan gives you information — and knowledge is the first step towards getting the right help. Talk to your doctor about any anxiety you feel, and consider reaching out to a mental health professional if intrusive worries affect your daily life.

Prevention

You cannot prevent the need for an MRI if your doctor thinks it is necessary — it is a diagnostic step, not an illness. However, you can lower your chances of developing severe complications from COVID that might require MRI by staying up to date with recommended COVID vaccinations, practising good hand hygiene, and managing underlying health conditions.

Vaccines

Vaccines are safe and effective at reducing the risk of severe COVID-19, hospitalisation, and long-term complications. Talk to your local healthcare provider about whether you are eligible for a COVID vaccine or booster.

Screening programmes

There is no universal screening programme for post-COVID problems. If you have symptoms that worry you, request an assessment with your doctor, who can decide if any imaging or other tests are appropriate.

Complications

If left untreated

• Undiagnosed heart inflammation (myocarditis) could lead to heart rhythm problems or heart failure over time.
• Undetected blood clots can travel and cause serious issues like stroke or pulmonary embolism.
• Persistent lung damage may lead to ongoing breathlessness and reduced stamina.
• Untreated neurological or mental health issues may continue or worsen, affecting quality of life.

Long-term outlook

The outlook for most people who need an MRI during COVID recovery is positive. An MRI is a powerful tool that helps doctors see exactly what is going on, so they can offer the right care. Many people who experience long COVID symptoms gradually improve over weeks or months, especially with the right medical support, pacing, and healthy habits. Even if the scan finds something that needs treatment, early detection gives you the best chance at a good recovery.

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