Breast MRI
- Specialist radiologist report
- Results in 5 to 7 working days
117a Harley St, London. Est 1984.
The most detailed breast imaging available. Recommended for high-risk women, BRCA gene carriers, and further assessment of findings from mammography or ultrasound.
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A private breast MRI at Medical Express Clinic uses magnetic fields and contrast dye to produce detailed three-dimensional images of breast tissue.
Breast MRI can detect cancers that mammography and ultrasound miss, map the exact size and extent of a known tumour, and assess both breasts simultaneously.
Breast MRI is not a routine first-line screening tool for everyone, because for most women mammography and ultrasound provide all the information needed.
A private breast MRI is recommended for high-risk women, BRCA gene carriers, and further assessment of findings from mammography or ultrasound.
The breast MRI scan takes about 30 to 45 minutes lying face down, uses no radiation, and is carried out at a specialist partner imaging centre near the clinic.
A bilateral breast MRI costs £750 at Medical Express Clinic, including the scan, contrast dye and a consultant radiologist report.
No referral is required for a breast MRI; send an imaging enquiry to Medical Express Clinic at 117a Harley Street, London, or book a £150 GP consultation first if you are unsure which scan is right.
A breast MRI (magnetic resonance imaging) is an advanced imaging scan that uses magnetic fields and contrast dye to produce highly detailed, three-dimensional images of breast tissue, capable of detecting cancers as small as a few millimetres and assessing the full extent of known abnormalities. It is the most sensitive breast imaging modality available, with detection rates exceeding 90% for invasive cancers.
High-risk women: If you have a lifetime breast cancer risk of 30% or higher, international guidelines recommend annual MRI screening alongside mammography. This includes women with a known BRCA1 or BRCA2 mutation, those with a first-degree relative who carries the mutation, and women who received chest radiation between the ages of 10 and 30.
Further assessment: If mammography or ultrasound has identified something that needs further clarification, MRI can provide the additional detail needed to determine whether biopsy is required or whether the finding is benign.
Pre-surgical planning: If breast cancer has been diagnosed, MRI can map the exact size, location, and extent of the tumour, check for additional sites of disease, and help the surgical team plan the most effective approach.
Dense breast tissue: For women with very dense breasts where mammography has significant limitations, MRI offers the highest detection sensitivity.
Implant assessment: MRI is the gold-standard imaging method for assessing the integrity of breast implants and detecting implant rupture, both silicone and saline.
Monitoring after treatment: For women who've had breast cancer treatment, MRI can distinguish between scar tissue and recurrence more effectively than mammography or ultrasound.
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No referral required, though referral letters are welcomed. Your MRI is carried out at a specialist partner imaging centre near our clinic. Location details and preparation instructions are provided at booking.
For pre-menopausal women, the scan is ideally scheduled between days 7-14 of your menstrual cycle, when hormonal changes in breast tissue are least likely to affect the images. We'll help you coordinate the timing.
You lie face down on a padded table with your breasts positioned in a dedicated breast coil. The scanner is noisy (you'll be given headphones or earplugs), but the scan itself is painless. It takes approximately 30-45 minutes. There is no radiation.
Your images are reviewed by an experienced consultant radiologist with breast MRI expertise. Reporting takes longer than mammography as it involves assessing hundreds of detailed images.
Results within 5-7 working days. A detailed written report is sent to you and your referring doctor. If further action is needed, we coordinate directly: biopsy referral, additional imaging, or referral to a breast surgeon.
| Feature | Mammogram | Ultrasound | Breast MRI |
|---|---|---|---|
| How it works | Low-dose X-ray | Sound waves | Magnetic fields |
| Radiation | Yes (low dose) | None | None |
| Sensitivity (Invasive) | ~85% | ~80% | ~95% |
| Best for | Routine screening | Dense tissue, cyst assessment | High-risk, tumour mapping |
| Discomfort | Brief compression | None | Lying still for 30-45 min |
| Results | 3 working days | 24-48 hours | 5-7 working days |
| Price | £245 | £450 | £750 |
For high-risk women, the combination of annual mammography and MRI offers the highest detection rates. Your doctor can help determine the right combination for your risk profile.
Gold-standard routine screening. Two-view X-ray of both breasts. The foundation of any breast screening plan.
View Details →Radiation-free imaging. Ideal for dense breast tissue, investigating specific areas, and distinguishing cysts from solid masses.
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Gynaecology and Women's Health • GMC 3047637
“Dr Naoum provides gynaecological assessment, interprets diagnostic ultrasound and treats pelvic pain and abnormal bleeding. He also carries out IUD fitting and removal, and HPV treatment for men and women. He has lectured internationally on obstetrics and gynaecology.”
Service information reviewed 2 July 2026.
A bilateral breast MRI at Medical Express Clinic is £750. This includes the scan, contrast dye, and consultant radiologist report. Results are returned within 5-7 working days.
No. You can send an enquiry directly. However, breast MRI is a specialist investigation, and if you're unsure whether it's the right scan for you, we recommend a GP consultation first (£150) to discuss your history and determine the most appropriate imaging.
No. You lie face down on a padded table and the scan is painless. There is a brief needle prick for the contrast injection. The main challenge is lying still for 30-45 minutes in a noisy scanner. Earplugs or headphones are provided.
Breast MRI generates hundreds of cross-sectional images that the radiologist reviews in sequence, assessing how breast tissue responds to the contrast dye over time. This detailed analysis requires more time than a standard mammogram, which produces four images.
Yes. MRI is actually the gold-standard imaging method for assessing breast implants. It can detect rupture, leakage, and capsular changes more effectively than mammography or ultrasound.
MRI uses strong magnets, so it's not suitable for people with certain metallic implants (some pacemakers, cochlear implants, heart valves). If you require a contrast MRI, it also requires adequate kidney function. You'll be screened before your appointment. MRI is avoided during pregnancy unless clinically necessary.
For most women at average risk, mammography is the appropriate routine screening tool. Breast MRI is recommended as an addition to mammography for high-risk women, not as a replacement. If you're unsure, our doctors can assess your risk profile and advise.
Breast MRI is commonly used after diagnosis to assess the full extent of the tumour, check for additional disease, and guide surgical planning. If your clinical team hasn't arranged one, discuss it with your surgeon or contact us directly.