Magnetic resonance imaging

MRI uses ________ to visualize tissue while CT uses __________

• protons

• radiation

High field and low field MRIs refer to the _________ of the field

power

Intensity refers to how ________ the image will be

bright

A series of RF pulses is referred to as a __________

sequence

Repetition time and time between repeating series of pulses and echoes is called what

TR

Echo time and time from center of the RF pulse to the center of the echo is called what

TE

The image showed in an MRI is the energy captures from ______ returning to normal orientation

protons

radiofrequency that happens in pulses is called ____

RF

Fat is ___ in t1 and ___ in t2

• bright

• bright

Fluid is ____ in t1 and ______ in t2

• bright

• dark

soft tissue is ___ in t1 and ___ t2

• intermediate

• intermediate

Using a _________ will cancel out the signal from certain things to allow you to see more

flair

What are the name for lesions visualized by MRI in the brain

• intra axial

• extra axial

• intraventricular

In GE bleeding will appear __________

hypointense

Why is MRI useful

• climates superimposition

• better resolution for small structures

• better tissue contrast

• intravenous contrast medium for enhancement of tissues and vasculatures