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Magnetic Resonance Imaging (MRI) of the Lower Extremity Without Contrast

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

An MRI uses magnetic fields and radio waves to create detailed images of bones, joints, muscles, tendons, and other soft tissues without injected contrast.

Quick summary

["This MRI evaluates the lower-extremity tissues in detail and does not require injected contrast material."]

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

Key facts at a glance

LOINC
39292-8
Short code
MR LE WO contr
Synonyms
MR LE 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?

Magnetic resonance imaging, or MRI, creates detailed pictures of the area being examined using magnetic fields and radio waves. A lower-extremity MRI may evaluate the hip, thigh, knee, lower leg, ankle, foot, or nearby nerves, muscles, tendons, and ligaments.

Why might I need this test?

A clinician may order this MRI to investigate persistent pain, swelling, weakness, numbness, reduced movement, or an injury. It is also used to evaluate fractures, joint problems, tendon or ligament tears, soft-tissue abnormalities, and some bone conditions.

How is the test performed?

You will lie on a padded table that moves into the MRI scanner. The technologist may position the leg being examined and ask you to remain still, sometimes for several sequences lasting 20 to 45 minutes. Images are reviewed by a radiologist, and the results are sent to your ordering clinician.

How do I prepare for the test?

No fasting or special preparation is usually required for an MRI without contrast. Tell the imaging staff about metal implants, pacemaker or other implanted devices, a seizure condition, pregnancy, or any chance of metal fragments in the body, and follow the facility's safety instructions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

MRI lower extremity without contrast

Frequently asked questions

Does this MRI use contrast material?
No. The term “without contrast” means no intravenous contrast dye is used for this examination. If another study is needed with contrast, the imaging team will explain it separately.
Is an MRI painful?
MRI itself is usually painless, although the scanner can be noisy and the narrow space may feel uncomfortable. Tell the staff if you feel claustrophobic, since options are available to help with anxiety.
How soon will I receive the results?
A radiologist will interpret the images and send a report to your ordering clinician. The timing of the final report and any follow-up discussion depend on the healthcare facility and the urgency of your evaluation.
  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