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We get asked all of the time, “Is it OK that I have an NHS GP?” It absolutely is! It’s
July 7, 2026
Cardiac MRI is a non-invasive diagnostic procedure that employs a powerful magnetic field, radio waves, and advanced computer technology to create detailed images of the heart’s structures and function.
If you are experiencing heart-related symptoms or have an existing condition, a cardiologist may recommend a cardiac MRI to gain a comprehensive understanding of your condition and tailor your treatment plan effectively.
A cardiac MRI is commonly used to assess congenital heart disease and to detect or monitor cardiac and coronary artery conditions. It can also be valuable for diagnosing other cardiovascular issues, including:
This imaging technique provides detailed insights into the size of the heart’s chambers, any damage or scarring from a heart attack, plaque build-up, and blood vessel obstructions.
The MRI exam typically lasts between 30 minutes and an hour. Before the procedure, you will receive an injection of contrast dye to enhance image clarity.
While the MRI itself is painless, you might find it uncomfortable to stay still for the duration of the scan. If the enclosed space of the scanner causes anxiety, we can arrange for mild sedation to help you feel more at ease.
Our team of cardiology specialists is here to support you, whether you need help managing existing conditions or require a precise diagnosis for any symptoms you are experiencing.
Cardiac MRI offers numerous advantages over other imaging techniques, making it a preferred choice for many heart evaluations. It provides comprehensive imaging by offering a 3D view of the heart, which helps in understanding both its anatomy and function in detail.
Unlike X-rays or CT scans, Cardiac MRI uses magnetic fields and radio waves, thus eliminating the risk of radiation exposure. Additionally, it captures high-resolution images that can detect subtle changes in heart tissue, which is crucial for early diagnosis.
Cardiac MRI is particularly effective for diagnosing and managing specific heart conditions, like:
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When preparing for a cardiac MRI, it is important to wear comfortable clothing that does not contain metal. You should also remove any metal items such as jewellery, watches, and hairpins. Inform the medical staff about any implants or metal in your body, as this can affect the imaging process. If instructed, avoid eating or drinking before the scan. Finally, be sure to follow any specific instructions provided by the facility to ensure a smooth and effective procedure.
During the cardiac MRI, you will lie on a table that slides into a tunnel-shaped scanner. Try to stay still while the machine creates detailed images using magnetic fields and radio waves. Throughout the scan, you may hear loud tapping or knocking sounds. A technician will monitor the procedure from another room and communicate with you via an intercom. The process is painless and typically takes between 15 – 60 minutes to complete, depending on the specifics of the exam.
If contrast agents were used, drink plenty of fluids to help flush it out of your system. Monitor for any allergic reactions or side effects and contact your healthcare provider if you experience any unusual symptoms. You can generally return to your usual activities immediately after the MRI, unless instructed otherwise. The MRI images will be reviewed, and a report will be sent to your referring doctor.
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We get asked all of the time, “Is it OK that I have an NHS GP?” It absolutely is! It’s
Written by a medical professional: Alya Shakir. Medically reviewed by Dr Enam Abood. Many Londoners start the working week feeling
City Walk-in Clinic is pleased to announce an educational event that could be useful to the general public as well
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