angina MRI what to expect

Overview

Angina is chest pain or discomfort that happens when your heart muscle doesn't get enough oxygen-rich blood. A cardiac MRI (magnetic resonance imaging) is a detailed scan that takes pictures of your heart to help doctors see how well it is working and if there are blockages or other problems.

Yes, angina is common, especially in older adults and people with risk factors for heart disease. It affects millions of people worldwide.

Angina most often affects people with coronary artery disease. It is more common in men over 50 and women after menopause, but anyone with risk factors can develop it.

Symptoms

Common symptoms

• Chest pain, pressure, or squeezing (often behind the breastbone)
• Pain that spreads to the shoulders, arms, neck, jaw, or back
• Shortness of breath
• Feeling dizzy or lightheaded
• Nausea or indigestion

Symptoms in children

• Angina is rare in children. If it occurs, symptoms are similar to adults, such as chest pain or shortness of breath during exercise.

Symptoms in older adults

• In older adults, symptoms may be less typical, such as fatigue, weakness, or shortness of breath without chest pain.

Causes

Main causes

• Coronary artery disease – buildup of fatty plaques (atherosclerosis) that narrow the arteries supplying the heart
• Coronary artery spasm – temporary tightening of the muscle in the artery wall

Risk factors

• High blood pressure
• High cholesterol
• Smoking
• Diabetes
• Family history of heart disease
• Being overweight
• Lack of physical activity
• Unhealthy diet
• Older age

When to see a doctor

See a doctor urgently if:

• You have chest pain that does not go away after a few minutes of rest or after using medication prescribed by your doctor.
• You have chest pain with shortness of breath, sweating, or feeling faint.

Book a routine appointment if:

• If you have risk factors for heart disease and want to discuss screening.
• If you experience mild, occasional chest discomfort that you haven't mentioned to your doctor.

Diagnosis

Doctors diagnose angina using your medical history, a physical exam, and tests that check how well your heart is working.

Tests that may be done

• Electrocardiogram (ECG) – measures the electrical activity of your heart
• Blood tests – check for markers of heart damage and risk factors
• Cardiac MRI – provides detailed images of the heart muscle, valves, and blood flow
• Stress test – records your heart during exercise or with medication
• Coronary angiography – uses dye and X-rays to see blockages

What to expect at your appointment

For a cardiac MRI, you will lie on a table that slides into a large tube. The scan is painless and lasts about 45 to 90 minutes. You may need to hold your breath for short periods. A contrast dye might be injected into your arm to help highlight blood vessels. The machine makes loud tapping noises, but you will be given earplugs or headphones. Let the staff know if you feel anxious or have trouble lying still.

Treatment

Treatment for angina aims to relieve symptoms, slow the progression of heart disease, and prevent heart attacks. It often includes lifestyle changes, medication, and sometimes procedures.

Self-care at home

• Eat a heart-healthy diet low in salt, saturated fat, and added sugars
• Get regular physical activity as approved by your doctor
• Quit smoking
• Manage stress
• Maintain a healthy weight
• Limit alcohol

Medical treatments

Doctors may prescribe medications to relax blood vessels, lower blood pressure, reduce cholesterol, or prevent blood clots. These medicines help reduce the workload on your heart and improve blood flow. Always take medications exactly as prescribed and discuss any side effects with your doctor.

When is surgery considered?

If medications and lifestyle changes are not enough, or if blockages are severe, doctors may recommend procedures such as angioplasty and stenting (opening the artery with a balloon and placing a small mesh tube) or coronary artery bypass grafting (using a blood vessel from another part of the body to bypass the blockage).

Living with this condition

Living with angina means paying attention to what triggers your symptoms and managing them. Carry your medications with you, know when to rest, and keep your follow-up appointments. Work with your healthcare team to create a plan for dealing with chest pain.

Lifestyle tips

• Learn what activities or stressors bring on your angina and try to avoid or manage them.
• Take your medication as prescribed, even when you feel fine.
• Monitor your risk factors (blood pressure, cholesterol, blood sugar) regularly.
• Get support from family, friends, or a cardiac rehabilitation program.

Diet and exercise

Eat plenty of fruits, vegetables, whole grains, lean protein, and healthy fats. Limit processed foods, salt, and sugary drinks. Exercise is important, but talk to your doctor before starting a new activity. Aim for moderate activity, like brisk walking, for at least 30 minutes most days if your doctor approves. Stop and rest if you feel chest pain.

Mental health and emotional wellbeing

Living with angina can cause anxiety, worry, or depression. It is normal to feel this way. Talk to your doctor about your feelings – they can offer support or refer you to a counsellor. Joining a support group may also help.

Prevention

You cannot always prevent angina, especially if you have a strong family history, but you can reduce your risk by living a heart-healthy lifestyle. This includes not smoking, eating well, staying active, managing stress, and controlling conditions like high blood pressure, diabetes, and high cholesterol.

Screening programmes

Regular check-ups with your doctor to monitor blood pressure, cholesterol, and blood sugar can help catch problems early. If you have risk factors, your doctor may recommend additional tests.

Complications

If left untreated

• Heart attack – when a blockage suddenly cuts off blood flow to part of the heart
• Heart failure – the heart becomes too weak to pump blood effectively
• Arrhythmias – irregular heartbeats that can be dangerous

Long-term outlook

With proper diagnosis and treatment, most people with angina can manage their symptoms and lead active, full lives. Following your treatment plan and making healthy choices greatly improves your long-term outlook.

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