what is an advantage of an mri over a ct scan? course hero

Full Answer

What is the difference between MRI and CT scan?

The difference between an MRI and CT scan. CT scans and MRIs are both used to capture images within your body. The biggest difference is that MRIs (magnetic resonance imaging) use radio waves and CT (computed tomography) scans use X-rays. While both are relatively low risk, there are differences that may make each one a better option depending on ...

What is an MRI?

An MRI is highly adept at capturing images that help doctors determine if there are abnormal tissues within the body. MRIs are more detailed in their images.

What is the noise of an MRI?

An MRI is a loud machine. Typically, you’ll be offered earplugs or headphones to make the noise more bearable. You’ll also be asked to lie still while the MRI is taking place.

What is a CT scan?

CT scans are sometimes called CAT scans. A CT scan is typically used for: bone fractures. tumors. cancer monitoring. finding internal bleeding. During a CT scan, you’ll be asked to lie down on a table. The table then moves through the CT scan to take cross-sectional pictures inside your body.

What are radio frequency tests used for?

They’re frequently used to diagnose issues with your: joints. brain. wrists. ankles. breasts. heart. blood vessels. A constant magnetic field and radio frequencies bounce off of the fat and water molecules in your body.

Is a CT scan a risk?

Both CT scans and MRIs pose some risks when used. The risks are based on the type of imaging as well as how the imaging is performed.

Should I consult a doctor before an MRI?

You should consult a doctor prior to an MRI if you have implants including:

What Are MRIs?

MRIs use magnets and radio waves that bounce off water and fat molecules within the body. Gathered information is then transmitted to a machine that “decodes” the message and creates pictures of internal body tissues.

What is a computer tomography scan?

Computer tomography scans combine a series of X-ray images taken at a variety of angles to produce a more detailed picture than a regular X-ray. CT scans are preferred for diagnosing internal injuries of bones, blood vessels and soft tissues. They are especially useful for diagnosing the area and extent of damage that came from car accidents, sport traumas and similar high-impact physical events. CT scans are also used for detecting traumas and tumors within bones and muscles, blood clots, cancer, internal bleedings, as well as for guiding during surgeries, biopsies, etc.

Answer

MRI does not use radiation like CT scans. An MRI uses magnetic fields.

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