A Thoracic Spine MRI is an advanced scan that focuses on the 12 vertebrae (T1 to T12) that make up your mid-back, as well as the spinal cord running through them.
Doctors request this scan when investigating mid-back pain that doesn't improve, pain that radiates around the chest wall, or weakness in the torso or legs.
Unlike X-rays or CT scans, a Thoracic Spine MRI uses magnetic fields — not radiation — to produce highly detailed images of the spinal cord, discs, and surrounding soft tissues.
About this scan
Why would my doctor ask for a Thoracic Spine MRI?
Your doctor may recommend a Thoracic Spine MRI to look closely at your mid-back, especially if you have:
- Persistent mid-back pain lasting more than a few weeks without an obvious mechanical cause.
- Pain that radiates around your rib cage, chest wall, or into your abdomen (radicular pain).
- Numbness, tingling, or a "band-like" sensation around your midsection.
- Unexplained weakness in your legs or problems with your balance.
- A history of osteoporosis, cancer, or severe trauma (like a fall).
What can a Thoracic Spine MRI detect?
A Thoracic Spine MRI helps doctors visualize:
- The thoracic spinal cord and exiting nerve roots.
- The intervertebral discs and the alignment of the 12 thoracic vertebrae.
- The supporting ligaments and muscles of the mid-back.
It is particularly useful for identifying:
- Herniated or bulging discs (though these are less common in the mid-back than the lower back).
- Spinal cord compression or injury.
- Compression fractures caused by osteoporosis or trauma.
- Inflammatory conditions, such as multiple sclerosis (MS) lesions on the spinal cord.
- Tumors, metastases, or spinal infections.
Will I be injected with dye for this scan?
In some cases, yes. A contrast agent called gadolinium may be used to make blood vessels, inflammation, or tumors appear more clearly on the images. The injection is safe for most people, but if you have severe kidney issues or allergies, tell your doctor before the scan.
Can an MRI show why I feel pain wrapping around my ribs?
Yes. Nerves that exit the thoracic spine travel around your rib cage to the front of your chest and abdomen. If a disc or bone spur in your mid-back is compressing one of these nerve roots, the MRI will clearly show the pinch point causing your radiating pain.
Before your appointment
Do I need any special preparation for a Thoracic Spine MRI?
There is usually no special preparation. However:
- Remove all jewelry, belts, and clothing containing metal zippers or buttons before entering the scan room.
- Inform your doctor or radiographer if you have any implants (especially pacemakers or metal plates).
- You can eat, drink, and take medications as usual unless told otherwise.
During the scan
What does a Thoracic Spine MRI feel like?
The scan is painless. You’ll lie flat on your back on a padded table that slides slowly into the MRI scanner.
Because the machine scans your midsection, your torso will be positioned in the center of the tube. You’ll hear rhythmic knocking or tapping sounds while the scanner takes pictures. Earplugs or headphones will be provided to make the experience more comfortable.
The radiographer will be able to see and talk to you throughout the scan. It’s very important to stay still and follow any breathing instructions given to you to ensure sharp images.
How long does the Thoracic Spine MRI take?
The scan usually takes between 30 and 45 minutes, depending on whether contrast dye is used and the specific views your doctor requested.
What if I’m nervous about being inside the scanner?
It’s common to feel claustrophobic. You’ll be in contact with the radiographer the entire time and will have an emergency squeeze ball. You may be offered a sleep mask, or you can ask your doctor for a mild sedative prior to your appointment.
After your scan and results
When will I get my results?
After the scan, a Radiologist carefully reviews the images and prepares a report for your doctor. Results are typically ready within a few days. Your doctor will discuss what the findings mean, including whether your pain is due to age-appropriate "degenerative changes" or something requiring targeted treatment.
Safety and special situations
Is it safe for pregnant women or children?
MRI does not use ionising radiation. Noncontrast thoracic MRI may be performed during pregnancy when clinically needed. Gadolinium is not routinely given during pregnancy and requires an individual risk-benefit decision.
When to seek urgent help
When should I seek urgent help?
Seek urgent assessment for new walking difficulty, leg weakness, spreading numbness, or loss of bladder or bowel control. Severe spinal pain with fever, cancer history, or major trauma also needs prompt medical review.
Sources and summary
Sources and further reading
Conclusion
A Thoracic Spine MRI is a safe, precise, and non-invasive way to assess the nerves, bones, and spinal cord in your mid-back. It helps doctors detect subtle conditions and structural issues that X-rays miss—often making it the key test in diagnosing unexplained mid-back and chest wall pain. If your doctor recommends this scan, it’s a crucial step toward understanding your symptoms and finding relief.