18/11/2025
GARS HAS YOUR BACK PT 5:
After Jock’s neurological assessment, he was transferred to our Imaging Department for a CT scan. GARS is one of the few centers to have its own on-ste CT scanner and MRI scanner. Spinal patients are frequently scanned with either machine or both machines, depending on what is required to optimize diagnosis and treatment planning.
Imaging is a critical step in accurately diagnosing Intervertebral Disc Disease (IVDD); helping rule out other causes of spinal pain while guiding surgical planning. While a neurological exam can localise the affected region, imaging shows precise location, extent of disease and which side of the spine is most affected.
What is the difference between MRI and CT?
MRI offers detailed visualisation of the spinal cord and soft tissue, allowing us to pinpoint the affected disc, the degree of compression, and any spinal cord injury, including swelling and fluid accumulation. The MR machine is a large magnet, weighing 7.5ton and takes around 1hour for image collection.
CT provides excellent definition of bone and mineralised disc material. It confirmins calcified or ruptured discs with precision but is less predictable in older patients. CT is an excellent modality for surgical planning and is much faster than MR, with CT image collection times less than a minute.
Combination of CT & MR is regularly performed and provides exceptional detail.
Results from scans directly inform the surgical approach including the level, side, length of decompression and any additional findings unique to each patient.