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Magnetic Resonance Imaging (MRI) of the Breast Without Contrast

Published: August 9, 2026Updated: August 16, 2026

A breast MRI creates detailed images without injecting an IV contrast dye, helping evaluate breast tissue, lesions, and some implants.

Quick summary

["Breast MRI without contrast uses magnetic imaging to evaluate breast tissue and abnormalities without IV dye."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
36436-4
Short code
MR Brst WO contr
Synonyms
MR Brst WO contr
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

Breast MRI uses a strong magnetic field and radio waves to create detailed pictures of the breasts. In this test, no intravenous contrast dye is given.

Why might I need this test?

It may be used to further evaluate a breast lump, unclear mammogram or ultrasound finding, the extent of a known breast problem, or certain breast implants. It may also be used for people at higher risk of breast cancer.

How is the test performed?

You usually lie on a table inside the MRI scanner while a technologist operates the equipment and takes several images. The scan may take 30 to 60 minutes, and you may be asked to remain still or change positions.

How do I prepare for the test?

Follow the imaging center's instructions and tell the staff about any implants, claustrophobia, metal in your body, or possible pregnancy. You may need to remove jewelry, eyeglasses, and other metal-containing items before the scan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

An abnormal MRI may show a suspicious area, an implant problem, or another condition that needs further evaluation. Findings are interpreted together with your medical history, physical exam, mammogram, and ultrasound, and a suspicious result may require additional imaging or a biopsy. MRI results alone do not establish a diagnosis.

Short name

Breast MRI without contrast

Frequently asked questions

Is breast MRI the same as a mammogram?
No. A mammogram uses low-dose X-rays, while breast MRI uses magnetic fields and radio waves. Your clinician may recommend one or both depending on your situation.
Will I receive an injection for this MRI?
This version of the test is performed without intravenous contrast dye. The technologist will confirm that no contrast is being used.
Does breast MRI cause pain?
The scan itself is generally painless, although the scanner can be noisy and somewhat confining. You can usually speak with the technologist during the examination.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy