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Exam (elaborations)

MRI EXAM QUESTIONS WITH COMPLETE ANSWERS.

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MRI EXAM QUESTIONS WITH COMPLETE ANSWERS.

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MRI EXAM QUESTIONS WITH
COMPLETE ANSWERS

Question vv13: vvFMRI vvis vva vvrapid vvMR vvtechnique vvthat vvacquires vvimages vvof vvthe
vvbrain vvduring vvan vvactivity vvor vvstimulus vvand vvat vvrest. vvThe vvmost vvimportant
vvphysiological vveffect vvthat vvproduces vvMR vvsignal vvintensity vvchanges vvbetween vva
vvstimulus vvand vva vvrest vvis vvcalled vvBlood vvOxygenation vvLevel vvDependence
vv(BOLD). vvWhich vvpulse vvsequence vvis vvused vvin vvFMRI vvspecifically vvbecause
vvBOLD vveffects vvare vvvery vvshort vvlived? vv


a. vvConventional vvspin vvecho vv
b. vvEcho vvimaging
c. vvFast vvgradient vvecho
d. vvFast vvspin vvecho
e. vvTurbo vvecho vv- vvAnswer vvc. vvfast vvgradient vvecho

What vvMRI vvimage vvwill vvbe vvproduced vvwith vva vvspin vvecho vvpulse vvsequence
vvhaving vva vvshort vvTR vvand vvshort vvTE vvvalue?
vva. vvDWI
b. vvFLAIR
c. vvPDWI
d. vvT1WI
e. vvT2WI vv- vvAnswer vvD. vvT1wi

Which vvMRI vvpulse vvsequence vvuses vva vv90º vvexcitation vvpulse vvfollowed vvby vv180º
vvrephasing vvpulse vvfollowed vvby vvan vvecho vvas vvseen vvin vvthe vvfigure vvbelow? vv
vv
vv
a. vvConventional vvspin vvecho
b. vvFast vvspin vvecho
c. vvFLAIR
d. vvGradient vvecho vve. vvSTIR vv- vvAnswer vvConventional vvspin vvecho

Which vvextrinsic vvcontrast vvparameter vvcontrols vvhow vvimaging vvis vvderived vvin
vvdiffusion vvweighted vvimaging? vv


a. vvB vvfactor
b. vvFlip vvangle

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