BE 304 Modern MRI

What is the average B in a medical MRI machine

• 7T

• 1T

• 1.5T

• 4T

Tags

NGSS.HS-PS2-5

Why is the magnet super conducting?

• Lots of electricity flows through it

• It's made of the perfect alloy

• It is kept at a very low temperature (~10K)

What type of image is this

• T1w MRI

• PET

• T2w MRI

• CT

Trivia: Why shouldn't you go near an MRI machine unless you are getting scanned? (multiple correct choices)

• You'll get dizzy and knocked out by the magnetic field

• The strong magnets can wipe your credit card

• Your keys will get sucked in by the strong magnet

• The radiation will scar you

Is this spine normal?

• Yes

• No

Who invented MRI?

• Paul Lauterbur

• J. R. Oppenheimer

• John Dalton

• Albert Einstein

(DAILY DOUBLE) Match T1 and T2 to its properties

• T1: Caused by gravitational interactions

  T2: Caused by electrostatic interactions

• T1: The part that acts after T2 decay

  T2: The first decay pattern observed

• T1: Caused by excited electrons

  T2: Caused by radioactive decay

• T1: Caused by Larmor Procession

  T2: Caused by Spin - Spin interactions

Tags

NGSS.HS-PS2-4

What are the key parts of MRI? (select all that apply)

• Radio Frequency Coils (RF)

• Radioactive isotope

• Gradient Coil (G)

• Scintillator

• Main Magnet (B naught)

True or False: Contrast Agent is REQUIRED for MRI imaging

• True

• False

When does the main magnet of an MRI turn off?

• On Weekends

• Never

• At night

• During Holidays