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Magnetic Resonance Imaging (MRI) of the Chest Without Contrast

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

A chest MRI creates detailed images of the lungs and nearby chest structures using magnetic fields and radio waves, without injected contrast.

Quick summary

["This imaging test helps evaluate chest structures that may not be clearly seen on standard X-rays."]

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

Key facts at a glance

LOINC
36442-2
Short code
MR Chest WO contr
Synonyms
MR Chest 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?

A chest MRI uses magnetic fields and radio waves to produce detailed pictures of the chest. It can assess the lungs, airways, blood vessels, heart, lymph nodes, chest wall, and nearby bones without injecting contrast dye.

Why might I need this test?

Your clinician may order this test to investigate an unexplained chest mass, lung abnormality, blood vessel problem, or condition affecting the chest wall or nearby tissues. It may also help clarify findings seen on another imaging study.

How is the test performed?

You will lie on a narrow table that moves into a large MRI scanner. The machine makes clicking, knocking, and other loud sounds, and you may be asked to hold your breath briefly while images are taken. A radiologist will review the images afterward.

How do I prepare for the test?

Follow the instructions provided by the imaging center, and tell the staff about any metal implants, medication patches, pregnancy possibility, or claustrophobia. You may need to remove jewelry, keys, cards, and other metal objects before the scan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Chest MRI without contrast

Frequently asked questions

Is a chest MRI the same as a chest X-ray?
No. A chest MRI uses magnetic fields and radio waves to create more detailed images, while a chest X-ray uses radiation to produce a quicker two-dimensional picture.
Why is no contrast used in this test?
A noncontrast MRI can provide detailed images without injected contrast dye. Your clinician will choose the imaging approach based on the condition being evaluated.
Will I feel anything during the scan?
The scan itself is generally painless, although the scanner is noisy and the confined space may feel uncomfortable. Tell the staff if you are anxious, claustrophobic, or unable to remain still.
  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