What is a CT Scan?
A computed tomography (CT) Scan, is performed by a radiographer usually at a hospital or clinic. The imaging uses multiple x-ray projections in thin cross-sections along a person’s body. The detectors then collect the x-ray information from each cross-section and and combine them to form 2D and 3D images of the body.
What can a CT Scan detect?
A CT scan can be used to assess a body part’s structure or shape. It can help with diagnosing trauma or an injury (it is usually helpful for shoulders or feet).
What are the risks of a CT Scan?
CT scans are a quick, painless, and noninvasive procedure.
Some people who have an injection of iodinated contrast material may feel nauseous for a short time afterwards. On rare occasions, a person may have an allergic reaction to this substance.
CT Scans do expose the patient to radiation, though it’s a relatively low dose. Certain types of CT scan may not be appropriate during pregnancy.
How is a CT Scan different from an MRI?
CT Scans use radiation whereas MRI’s do not. An MRI uses strong magnets to provide imaging that is a lot more detailed than CT, Xray and Ultrasound imaging. An MRI can show the inner organs (soft tissues) such as the brain, skeletal system, reproductive system and other organ systems.
MRI scans are not invasive but may cause a safety issue due to its strong magnets. They are also costlier than CT scans.
When do I need a CT Scan?
Osteopath’s and other first care practitioners are trained to be able to diagnose based on the clinical presentation. If a practitioner cannot reach a satisfactory diagnosis, there are medical red flags or it is a pre surgical issue, CT Scan referral can then be made.
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