1. Which one of these are not an example of an MRI active nuclei? (23) Sodium…

1. This isn’t an instance for an MRI activ.
nuclei? (23) Sodium (12), Carb (1) Hydrogen (31) – All
All of the above

2. We’re ready use these causes due to all of the above.
hydrogen in MRI EXCEPT:

The Massive Magnetic Second of Odd Mass # is Abundance within the Physique.
Elevated Absorption of RF

3.Resonance at 1.5T is required for excitation
Ship RF roughly at ________ MHz

42, 21, 62, 124

4. This regulation explains how a transferring firm is expounded to a different.
{An electrical} area could be created by making a magnetic area.
__________.

Faraday’s Legislation, Einstein’s Legislation, Kelvin’s Legislation, Ohm’s Legislation,
Mansfield’s regulation

5. True or false: Whereas the strengths of all MRI fields are comparable,
Machines can have completely different orientations, however the magnetic traces that run in the identical route could also be of various varieties.
The fixed flux of change will probably be there.

True

False

6. Precessional frequency at 1.5T for hydrogen is:

52.47Hz

63.86MHz

42.57 MHz

63.86Hz

42.57 MHz.

7. True or False. There’ll all the time extra hydrogen protons
They align with the route that the principle magnetic area is heading.
Earlier than receiving an RF, you should oppose it.

False

True

8. The radio should transmit Hydrogen resonance indicators so as to enable for this.
Frequency (RF) excitation pulse should match __________

Sign to noise ratio, Gyromagnetic Ratio and Larmor Frequency
Larmor Frequency & Gyromagnetic Ratio, Sign to Noise Ratio
& Gyromagnetic Ratio

9. That is the distinction between parallel and common.
Anti-parallel protons are often known as the ____________.

Part

No Induction Decay Price (FID).

Frequency

Web Magnetization Vector

Gyromagnetic Ratio

10. The Hydrogen gyromagnetic ration is _____.

63.86 MHz x Tesla

42.57 Hz x Gauss

42.57 MHz x Tesla

127.71 MHz x Tesla

11. That is the distinction between parallel and common.
Anti-parallel spins are often known as the ________.

Frequency of Larmor

Ernst Angle

Electromagnetic Vector

Web Magnetization Vector