Thoracic spine x-ray

Vertebral radiography; X-ray - spine; Thoracic x-ray; Spine x-ray; Thoracic spine films; Back films

A thoracic spine x-ray is an x-ray of the 12 chest (thoracic) bones (vertebrae) of the spine. The vertebrae are separated by flat pads of cartilage called disks that provide a cushion between the bones.

How the Test is Performed

The test is done in a hospital radiology department or in your health care provider's office. You will lie on the x-ray table in different positions. If the x-ray is checking for an injury, care will be taken to prevent further injury.

The x-ray machine will be moved over the thoracic area of the spine. You will hold your breath as the picture is taken so that the picture will not be blurry. Usually, 2 or 3 x-ray views are needed.

How to Prepare for the Test

Tell your provider if you are pregnant. Also tell your provider if you have had surgery in your chest, abdomen, or pelvis.

Remove all jewelry.

How the Test will Feel

The test causes no discomfort. The table may be cold.

Why the Test is Performed

The x-ray helps evaluate:

Bone injuries
Cartilage loss
Arthritis
Arthritis
Arthritis is inflammation or degeneration of one or more joints. A joint is the area where 2 bones meet. There are more than 100 different types of...
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Curvature in the spine
Diseases of the bone
Tumors of the bone

What Abnormal Results Mean

The test can detect:

Bone spurs
Deformities of the spine
Disk narrowing
Dislocations
Fractures (most often compression fractures of the vertebrae)
Compression fractures
Compression fractures of the back are broken vertebrae. Vertebrae are the bones of the spine.
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Thinning of the bone (osteoporosis)
Osteoporosis
Osteoporosis is a disease in which bones become fragile and more likely to break (fracture).
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Wearing away (degeneration) of the vertebrae
Abnormal alignment of the bone (spondylolisthesis)

Risks

There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk is low compared with the benefits.

Pregnant women and children are more sensitive to the risks of x-rays.

Considerations

The x-ray will not detect problems in the muscles, nerves, and other soft tissues, because these problems cannot be seen well on an x-ray.

Open References

References

Preston-Suni K, Kaji AH. Spinal trauma. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 35.

Mettler FA. Skeletal system. In: Mettler FA, ed. Essentials of Radiology. 4th ed. Philadelphia, PA: Elsevier; 2019:chap 8.

Van Thielen T, van den Hauwe L, Van Goethem JW, Parizel PM. Current status of imaging of the spine and anatomical features. In: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 47.

Skeletal spine - illustration
The spine is divided into several sections. The cervical vertebrae make up the neck. The thoracic vertebrae comprise the chest section and have ribs attached. The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail.
Skeletal spine
illustration
Vertebra, thoracic (mid back) - illustration
These are twelve vertebra of the mid back. The last vertebra (on the left side of the picture) attaches to the lumbar (lower) spine, and the top vertebra (on the right) attaches to the cervical (neck) section of the back. The vertebra are broader and stronger than the cervical bones. This allows them to absorb the added pressure applied to the mid back, but they remain a common sight of injury. The vertebra are numbered from one to twelve and labeled T1, T2, T3, et cetera, from the upper most bones to the lowest.
Vertebra, thoracic (mid back)
illustration
Vertebral column - illustration
This is the spine and the sacrum with the cervical (neck), thoracic (mid-back), and lumbar (lower back) vertebra. Notice how the appearance of the vertebra change as you look down the spine. The change in shape and size reflect the different functions of the neck, mid-back, and lower back.
Vertebral column
illustration
Intervertebral disk - illustration
The vertebral column is made up of 26 bones that provide axial support to the trunk. The vertebral column provides protection to the spinal cord that runs through its central cavity. Between each vertebra is an intervertebral disk. The disks are filled with a gelatinous substance, called the nucleus pulposus, which provides cushioning to the spinal column. The annulus fibrosus is a fibrocartilageous ring that surrounds the nucleus pulposus, which keeps the nucleus pulposus intact when forces are applied to the spinal column. The intervertebral disks allow the vertebral column to be flexible and act as shock absorbers during everyday activities such as walking, running and jumping.
Intervertebral disk
illustration
Anterior skeletal anatomy - illustration
The skeleton is made up of 206 bones in the adult and contributes to the form and shape of the body. The skeleton has several important functions for the body. The bones of the skeleton provide support for the soft tissues. For example, the rib cage supports the thoracic wall. Most muscles of the body are attached to bones which act as levers to allow movement of body parts. The bones of the skeleton also serve as a reservoir for minerals, such as calcium and phosphate. Finally, most of the blood cell formation takes places within the marrow of certain bones.
Anterior skeletal anatomy
illustration

A Closer Look

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Tests for Thoracic spine x-ray

Review Date: 8/12/2023

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06/01/2025

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Health Library

Thoracic spine x-ray

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Arthritis

What Abnormal Results Mean

Compression fractures

Osteoporosis

Risks

Considerations

References

Skeletal spine - illustration

Skeletal spine

Vertebra, thoracic (mid back) - illustration

Vertebra, thoracic (mid back)

Vertebral column - illustration

Vertebral column

Intervertebral disk - illustration

Intervertebral disk

Anterior skeletal anatomy - illustration

Anterior skeletal anatomy