CT LUMBAR SPINE

CT Lumbar Spine Overview

Introduction 

CT or Computed Tomography scan of the lumbar spine is a more advanced, non-invasive imaging test, as it includes visualization of the bones, soft tissues and the spinal canal in the lower back, compared to other simpler imaging techniques. It is efficient for assessing trauma, infections, tumours, post-operative complications, as well as any degenerative changes, due to its ability to provide high-resolution cross-sectional pictures. 

What is CT Lumbar Spine? 

CT scan of the lumbar spine employs the use of x-rays alongside sophisticated computing to produce high-quality images of the vertebrae, intervertebral discs, spinal canal, and the adjacent structures. It is especially useful in identifying structural changes and bony abnormalities within the lumbar spine.

Parameters Considered

• Integrity and alignment of vertebrae 
• Space in between intervertebral disc. 
• Diameter of spinal canal. 
• Osteophytes or bone spurs indicators. 
• Signs of infection, trauma, or tumours. 

Reasons for the Test

• Test of herniated or bulged discs in the lumbar and cervical spine. 
• Check the stability in fractures or fractures of the spine. 
• Act as a blocker for stenosis and nerves. 
• Longitudinal studies evaluate the disease of degeneration of the spine. 
• Assess post-surgery fusion and hardware of the spine. 

When and Who Needs This Scan? 

Indications: 

• Backache of lower back with sciatica which is persistent 
• Trauma or injury to the lumbar spine in the past 
• Disc pathology or spinal stenosis is suspected 
• Aims at Follow up after spine surgery 
• Tumours, infections, and congenital anomalies or their detection. 

Patient Demographics: 

• Senior patients suspected to have degenerative spine disease 
• Chronic or acute lower back pain suffers in adults 
• Surgical spine patients 
• Oncology patients suspected of having bone metastases 

Benefits of Taking the Test

• Fast and painless procedure 
• Bone and anatomical structures are visible in sharp detail 
• Extremely helpful in trauma and emergency situations. 
• Provides precise direction for spinal surgery and spinal procedures. 

Conditions Diagnosed

• Osteoarthritis of the lumbar region. 
• Herniated and degenerative disc disease. 
• Spinal interval fractures or dislocation bodies. 
• Infectious processes such as osteomyelitis or discitis. 
• Spinal tumours or metastatic lesions. 

Preparation

• Calm outfit with no metal clips. 
• No eating or drinking for 4-6 hrs before contrast scans. 
• Tell radiologist about previous implants or surgeries of the spine. 

Pre-requisites 

• Requesting physician or imaging requisition. 
• If contrast is going to be used, a test for renal function. 
• Allergy screening (especially for iodine and contrast dye). 

Best Time to Take the Scan 

• For these patients with less severe symptoms, follow their doctor's orders. 
• During morning hours, patients prefer swift results. 

Eligibility 

• Has no known risks to the majority of patients. 
• Be careful about pregnant women and those who are allergic to contrast material. 

Procedure 

• The patient will lie supine on the CT table. 
• Over the table the scanner will move and capture images of the lumbar region. 
• If required, contrast substance may be given intravenously. 
• Scan lasts approximately 5 to 10 minutes. 
• The interpret of the scan data is done by the radiologist through image reconstruction and analysis. 

Caution 

• Do not move during the scan to improve imaging. 
• Notify the technician of any existing pregnancy, implants or allergies.