Which frequencies does an MRI machine use? Is it microwaves?

  • #1

KIAaze

1
0
Hi,

Which frequencies does an MRI machine use? Is it microwaves?
Would prolonged exposure to it be damaging to the body?
 
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  • #2
http://lmgtfy.com/?q=how+do+MRIs+work" [Broken] :tongue:
 
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  • #3
The actual signal information that is used for reconstructing the MRI images comes from radio-frequency (RF) magnetic fields, oscillating millions of times per second (MHz range).

The FDA and other advisory bodies have recommendations for limiting things such as the rate of switching of the RF gradient fields and the RF power levels, but I think the current consensus is that these things do not pose serious risks to the patient as used in MRI.
 
  • #4
bobze said:
http://lmgtfy.com/?q=how+do+MRIs+work" [Broken] :tongue:

That was wonderful.

Nuclear Magnetic Resonance imaging is actually a very advanced concept...it involves quantum mechanics and was worthy of a nobel prize.

Enjoy the reading
 
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1. What frequencies does an MRI machine use?

MRI machines use radio frequencies in the range of 1-100 MHz (megahertz).

2. Are these frequencies similar to those used in microwaves?

No, the frequencies used in MRI machines are much lower than those used in microwaves. Microwaves typically operate in the range of 2.45 GHz (gigahertz).

3. How do these frequencies create images in an MRI machine?

The radio frequencies used in MRI machines are used to excite the protons in the body's tissues. This creates a magnetic field that is detected by the machine and used to create images.

4. Are there any potential health risks associated with these frequencies?

No, the frequencies used in MRI machines are non-ionizing and do not have enough energy to cause damage to cells or tissues.

5. Can these frequencies interfere with other medical devices or electronics?

Yes, there is a potential for interference with other medical devices or electronics. This is why strict safety protocols are in place to ensure that MRI machines are properly shielded and operated in a controlled environment.

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