Ever had to undergo Computed Tomography (CT) or Magnetic Resonance Imaging (MRI)? If yes, you might have wondered what the difference between the two scans is? Both the machines look almost identical and are designed to capture images of certain internal parts of the body. What, then, is the difference between the two?
Let’s take a look:
Although MRI and CT Scans seem similar and serve similar purposes, they do not have the same machine.
CT Scans use radioactive X-rays to take individual image slices of the body. They are efficient at producing detailed images of the head, chest, abdomen, skeletal system, and more. CTs are generally quieter, faster, and more comfortable than MRI tests.
MRI uses a combination of strong magnetic fields and radio frequency pulses to create images of the body. Unlike CT Scans, MRI doesn’t scan bone. However, it is used to produce images of the head, chest, abdomen, and chest. MRI Scans are efficient at taking pictures of soft tissue. It doesn’t involve radiation like CTs, but they take longer than CTs and are mostly noisier.
Which scan is better than the other?
Both MRI and CT Scans have their advantages and disadvantages. There are a lot of factors which can come into play if you have to decide. But mostly it boils down to the type of injury you have, as well as preference.
Advantages of MRI Scans
- Unlike CTs, MRIs do not involve radiation. Hence, they are safe to use on patients who are required to take multiple scans or children.
- The scanning plane in an MRI is adjustable without the need to move the patient.
- The type of contrast used in an MRI scan has lesser chances of causing any allergies to the patient.
- MRIs are excellent at capturing images of soft tissue. Even the radio frequency can be adjusted to better highlight the issue in question.
Advantages of CT Scans
- Patients with a fear of close spaces suffering from claustrophobia may find CT Scan more comfortable, as it is faster and less noisy than an MRI.
- CT Scans are not as sensitive to patient movement during the procedure.
- CTs are comparatively faster than MRI. Hence, they make a better choice during emergency situations.
- Patients with metal fragments or devices can undergo a CT because it doesn’t involve a magnetic field.
Here are some cases in which these scanners are used:
As every situation is unique. Therefore, doctors may suggest an alternate approach in the following cases.
- For a patient with a spinal injury, the doctor will most likely order for a CT scan, unless the patient has metal implants.
- Patients with a history of allergies will most likely receive an MRI scan order.
- Claustrophobic patients are likely to receive CT scan orders as it’s for a shorter duration.
- For patients with internal bleeding or other injuries, doctors are likely to order an MRI scan to obtain accurate detail.
MRI’s are mostly less affordable than CTs. However, in Texas, an affordable MRI & affordable CT Scan is near you at Innate Imaging.