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MRI Imaging for Disease Demonstration Quiz

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MRI Imaging for Disease Demonstration Quiz

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Questions and Answers

What type of tumors are best demonstrated by MRI in the spinal cord?

Tumors that enter the spinal cord or cause vertebral column collapse, which can originate from lung, prostate, breast, or colon.

What is the primary function of Cerebral Spinal Fluid (CSF)?

The primary function of CSF is to provide physical support and protection to the brain and spinal cord, as well as control the chemical environment by supplying nutrients and removing waste.

What is the characteristic of Multi Sclerosis that affects the nerve fibers?

It damages the protective coating around the nerve fibers, specifically the myelin, which transmits messages to all body parts.

What is CBA Advance, and what type of lung cancer does it refer to?

CBA Advance refers to Carcinoma Bronchiolo-Alveolar, a variant of non-small cell lung cancer. Signup and view all the answers

What are common sources of knee pain and disability that can be detected by MRI?

Meniscus and ligaments are common sources of knee pain and disability that can be detected by MRI. Signup and view all the answers

What is the decibel level of the MRI sound?

The MRI sound is greater than 120 decibels, which is considered a loud noise. Signup and view all the answers

What is the term for the spinning or wobbling of protons when they are aligned with or against the external magnetic field in an MRI?

Precession Signup and view all the answers

What is the frequency of precession dependent on?

The strength of the applied magnetic field (Bo) Signup and view all the answers

What is the term for the exact frequency of the magnet that excites the protons in an MRI?

Resonance Signup and view all the answers

Why is hydrogen highly sensitive to magnets in an MRI?

Because it behaves like a tiny magnet Signup and view all the answers

What is the ratio of the magnetic field strength to the frequency of precession called?

Gyromagnetic ratio Signup and view all the answers

What are the 7 MRI active nuclei, and what does this mean?

<ol> <li>Hydrogen, 2. Oxygen, 3. Carbon, 4. Nitrogen, 5. Sodium, 6. Fluorine, and 7. Potassium. These nuclei are capable of being aligned with an external magnetic field in an MRI.</li> </ol> Signup and view all the answers