Images obtain contrast through
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T1 recovery, T2 decay, and proton or spin density
Colors for Fat and Water for T1 image (spin lattice relaxation)
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Water is dark fat is bright (easier to detect)
TR = most important control, in extrinsic, must be short (500 ms) a longer
version of this would be 2000
*if too long it'll start to look the same, all will go back to B0
, TE- 500
TR- 60
MRI principles rely on
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the spinning motion of specific nuclei present in biological tissues
FID
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MRI signal, free induction decay
Why we use protons
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It is magnetic, has motion and charge
Isotopes
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, atoms with the same number of protons but different number of neutrons
Alignment Quantum Theory
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describes the properties of electromagnetic radiation in terms of discrete
quanitities of energy called quanta
Water molecule atoms
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spaced far apart
The rate of decay
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exponential process
Fat T1 and T2 times
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Give this one a try later!
T1 recovery, T2 decay, and proton or spin density
Colors for Fat and Water for T1 image (spin lattice relaxation)
Give this one a try later!
Water is dark fat is bright (easier to detect)
TR = most important control, in extrinsic, must be short (500 ms) a longer
version of this would be 2000
*if too long it'll start to look the same, all will go back to B0
, TE- 500
TR- 60
MRI principles rely on
Give this one a try later!
the spinning motion of specific nuclei present in biological tissues
FID
Give this one a try later!
MRI signal, free induction decay
Why we use protons
Give this one a try later!
It is magnetic, has motion and charge
Isotopes
Give this one a try later!
, atoms with the same number of protons but different number of neutrons
Alignment Quantum Theory
Give this one a try later!
describes the properties of electromagnetic radiation in terms of discrete
quanitities of energy called quanta
Water molecule atoms
Give this one a try later!
spaced far apart
The rate of decay
Give this one a try later!
exponential process
Fat T1 and T2 times
Give this one a try later!
