Lumbar Spine CT Scan at Butler Medical Imaging: What You Need to Know! (08) 9544 3999

Author : crystal radiology | Published On : 26 Oct 2026

A Lumbar Spine CT Scan at Butler can help healthcare professionals investigate certain spinal conditions, including fractures, degenerative changes, and narrowing around the spinal canal. Understanding how this scan works, why it may be recommended, and how to prepare can help you feel more confident before your appointment.

Butler Medical Imaging provides diagnostic imaging services to help patients access the examinations recommended by their healthcare professionals.

What Is a Lumbar Spine CT Scan?

A lumbar spine CT scan is a non-invasive medical imaging examination that uses X-rays and computer processing to produce detailed cross-sectional images of the lower spine. The lumbar region is the lower part of your back, usually consisting of five vertebrae between the chest and pelvis.

Unlike standard X-rays, which create images from a particular angle, CT imaging produces detailed views of the spine in multiple planes. These images help radiologists examine the vertebrae and assess certain abnormalities.

A lumbar CT scan may help identify or assess:

• Spinal fractures: Breaks or injuries affecting the vertebrae.
• Degenerative changes: Wear-and-tear changes affecting the bones and joints of the spine.
• Spinal stenosis: Narrowing of the spinal canal or spaces where nerves pass.
• Bone abnormalities: Bone spurs and other structural changes.
• Certain infections or tumours: When clinically suspected, CT may help assess changes in the spine.
• Some disc-related problems: CT can show certain disc abnormalities, although MRI may provide better detail of discs, nerves, and other soft tissues.

Your doctor will decide whether CT is the most appropriate examination based on your symptoms and medical history.

Why Might You Need a Lumbar Spine CT Scan?

Lower back pain can have several causes, ranging from muscle strain to changes involving the vertebrae or nearby nerves. If your symptoms persist or your doctor suspects a particular spinal problem, diagnostic imaging may be recommended.

A Lumbar Spine CT Scan at Butler may be appropriate when your healthcare professional needs detailed information about the bones and structure of your lower spine.

Your doctor may recommend this examination if you experience:

• Persistent or unexplained lower back pain.
• Back pain following an injury or accident.
• Suspected spinal fractures.
• Sciatica, which can cause pain travelling from the lower back into the buttock or leg.
• Numbness or tingling that requires further investigation.
• Suspected spinal stenosis or degenerative bone changes.
• A need for detailed assessment before or after certain spinal procedures.

Not everyone with back pain needs a CT scan. Your healthcare professional will consider your symptoms, physical examination, and whether imaging is likely to influence your care.

What Conditions Can a Lumbar CT Scan Help Detect?

1. Spinal fractures

A CT scan can provide detailed images of the vertebrae and may help identify fractures following trauma or when a fracture is otherwise suspected.

2. Degenerative spinal changes

As people age, the joints and bones of the spine can develop wear-and-tear changes. CT may show bone spurs, joint changes, and other structural abnormalities that could contribute to symptoms.

3. Spinal stenosis

Spinal stenosis occurs when spaces within the spine become narrowed. CT can help assess the bony structures contributing to this narrowing. MRI may be needed to evaluate the nerves and other soft tissues in greater detail.

4. Disc abnormalities and nerve-related symptoms

Disc bulges or herniation can sometimes contribute to back pain or sciatica. CT may identify some disc abnormalities, but MRI is generally more useful when detailed assessment of nerve compression or soft-tissue structures is required.

5. Suspected infection or other abnormalities

When there is a clinical concern about infection, a tumour, or another spinal abnormality, CT may form part of the investigation. The appropriate imaging method depends on the suspected condition.

How Does a Lumbar Spine CT Scan Work?

A Lumbar Spine CT Scan at Butler involves lying on a scanner table while the machine captures images of your lower back.

The process generally follows these steps:

1. Before the scan: The imaging team checks your referral and relevant medical information.
2. Positioning: You lie on a table, usually on your back, in the position required for the examination.
3. Image capture: The table moves through the circular CT scanner as the machine takes a series of images.
4. Staying still: You may be asked to remain still to help produce clear images.
5. Image review: A radiologist interprets the images and prepares a report for your referring healthcare professional.

A routine lumbar spine CT scan is often completed within a few minutes, although your total visit may take longer.

Contrast material is not required for every lumbar CT scan. If contrast is recommended for your particular examination, the imaging team will explain the preparation and relevant safety checks.

Is a Lumbar Spine CT Scan Safe?

CT scans use ionising radiation to create detailed images. The examination is generally considered appropriate when the expected medical benefit outweighs the potential risk from radiation exposure.

The imaging team uses established procedures to obtain the required images while managing radiation exposure. Your doctor and radiology team can help determine whether CT is suitable for your situation.

If contrast material is required, there may be additional considerations, including the possibility of an allergic-like reaction. Make sure you disclose relevant medical information before the scan.

Book a Lumbar Spine CT Scan at Butler Medical Imaging

If your doctor has recommended a CT scan to investigate lower back pain, a suspected spinal fracture, or another lumbar spine condition, Butler Medical Imaging can help you take the next step.

Contact Butler Medical Imaging to enquire about your scan and arrange an appointment. Bring your referral and follow the clinic's preparation instructions so your imaging visit can proceed as smoothly as possible.

Please ensure that you have your Medicare card and referral with you and pop into our location for your consultation. If you have any questions at all, please feel free to contact us on +61 8 9544 3999 as we are here to help.

Additional Recommendation

“This information is general in nature and does not replace medical advice. Suitability for procedures should be discussed with your referring doctor or specialist.