What is a CT or CAT scan?
CT stands for Computed Tomography. Some people call it a CAT Scan. It is a type of medical imaging. CT scans use x-rays to create medical images to give clinicians a 3 dimensional look inside the body. This can help them diagnose problems.
Clinicians can also use CT to guide minimally invasive procedures. These procedures can be an alternative to surgery because they have lower risks and shorter recovery times.
What are the risks of CT?
CT is generally safe when done by a specialist. The risks of CT come from its use of x-rays. X-rays are a type of radiation that can damage cells in the body. This damage can be reversible or permanent. X-rays at high doses can cause skin burns or hair loss. X-rays at any dose can cause cancer. The chance of getting cancer from a CT is very low but goes up with more exposure to x-rays. Clinicians only use CT when the benefits outweigh the risks.
What are the alternatives to CT?
Different types of medical imaging can be used to guide procedures. Fluoroscopy uses moving x-rays. Ultrasound and MRI do not use radiation. They each have their own strengths and weaknesses. Your clinician will choose the type of imaging that allows them to see clearly and perform the procedure safely. They take care to minimize the amount of radiation used.
You may also choose not to have the CT-guided procedure. Your alternatives depend on your preferences, overall health, and the reason why your clinician is recommending this procedure.
More information about CT can be found here: https://www.radiologyinfo.org/en/submenu.cfm?pg=ctScan