WHICH FLOW PHENOMENON IS CAUSED BY FLOWING SPINS ENTERING INTO THE
VOXEL WITH A PHASE THAT DIFFERS FROM THAT OF THE STATIONARY TISSUE
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INTRAVOXEL REPHASING
DESCRIBE HOW A HAHN ECHO IS CREATED
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RESULT OF ANY TWO SUCCESSIVE 90 DEGREE RF PULSES
,WHICH IMAGING PARAMETER(S) CONTROL(S) THE AMOUNT OF RECOVERY THAT
OCCURS WHEN PERFORMING A GRADIENT ECHO PULSE SEQUENCE?
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TR AND FLIP ANGLE
NAME ONE APPLICATION OF BALANCED GRADIENT ECHO SEQUENCE
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CARDIAC
GREAT VESSELS
CERVICAL SPINE
INTERNAL AUDITORY CANALS
CSF FLOW
HOW MANY LINES OF KSPACE ARE FILLED DURING EACH TR IN A FSE FAST SPIN
ECHO
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IT DEPENDS ON THE ECHO TRAIN LENGTH SELECTED BY THE
TECHNOLOGIST
DO GBCAS CROSS THE INTACT BLOOD BRAIN BARRIER?
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, NO
...UHM IM NOT SURE SHE'S RIGHT ABOUT THIS ONE...
STUDY GUIDE NUMBER 2
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INVERSION RECOVERY PULSE SEQUENCE
IN THE STEADY STATE, THE NMV IS COMPRISED OF A LONGITUDINAL (Mz) TANT
TRANSVERSE (Mxy) COMPONENT AT ALL TIMES. WHAT ARE THE OPTIMAL
PARAMETER RANGES TO INDUCE THE STEADY STATE
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TR 20 - 50 MS
FLIP ANGLE 30-45
WHICH GRADIENT IS APPLIED TO REWIND (OR SPEED UP THE REPHSING OF) THE
RESIDUAL TRANSVERSE MAGNETIZATION, SO THAT THE SIGNAL SAMPLED
DURING READOUT IS COMPOSED OF THE GRADIENT ECHO AND THE STIMULATED
ECHO?
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, THE PHASE ENCODING GRADIENT ***
IDK Y
DEFINE T2*
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T2 DECAY CAUSED BY BOTH MAGNETIC FIELD INHOMOGENEITIES AND
SPIN-SPIN INTERACTIONS
NAME THE FOUR FACTORS THAT INFLUENCE THE AMOUNT OF IN-FLOW EFFECT
(ENTRY SLICH PHENOMENON) PRESENT IN THE IMAGE. WHICH IS THE MOST
SIGNIFICANT
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FLOW DIRECTION (MOST)
TR
SLICE THICKNESS
FLOW VELOCITY
SPINS MUST BE MANIPULATED IN TWO WAYS TO PRODUCE A USEFUL SIGNAL.
NAME THEM
Give this one a try later!
VOXEL WITH A PHASE THAT DIFFERS FROM THAT OF THE STATIONARY TISSUE
Give this one a try later!
INTRAVOXEL REPHASING
DESCRIBE HOW A HAHN ECHO IS CREATED
Give this one a try later!
RESULT OF ANY TWO SUCCESSIVE 90 DEGREE RF PULSES
,WHICH IMAGING PARAMETER(S) CONTROL(S) THE AMOUNT OF RECOVERY THAT
OCCURS WHEN PERFORMING A GRADIENT ECHO PULSE SEQUENCE?
Give this one a try later!
TR AND FLIP ANGLE
NAME ONE APPLICATION OF BALANCED GRADIENT ECHO SEQUENCE
Give this one a try later!
CARDIAC
GREAT VESSELS
CERVICAL SPINE
INTERNAL AUDITORY CANALS
CSF FLOW
HOW MANY LINES OF KSPACE ARE FILLED DURING EACH TR IN A FSE FAST SPIN
ECHO
Give this one a try later!
IT DEPENDS ON THE ECHO TRAIN LENGTH SELECTED BY THE
TECHNOLOGIST
DO GBCAS CROSS THE INTACT BLOOD BRAIN BARRIER?
Give this one a try later!
, NO
...UHM IM NOT SURE SHE'S RIGHT ABOUT THIS ONE...
STUDY GUIDE NUMBER 2
Give this one a try later!
INVERSION RECOVERY PULSE SEQUENCE
IN THE STEADY STATE, THE NMV IS COMPRISED OF A LONGITUDINAL (Mz) TANT
TRANSVERSE (Mxy) COMPONENT AT ALL TIMES. WHAT ARE THE OPTIMAL
PARAMETER RANGES TO INDUCE THE STEADY STATE
Give this one a try later!
TR 20 - 50 MS
FLIP ANGLE 30-45
WHICH GRADIENT IS APPLIED TO REWIND (OR SPEED UP THE REPHSING OF) THE
RESIDUAL TRANSVERSE MAGNETIZATION, SO THAT THE SIGNAL SAMPLED
DURING READOUT IS COMPOSED OF THE GRADIENT ECHO AND THE STIMULATED
ECHO?
Give this one a try later!
, THE PHASE ENCODING GRADIENT ***
IDK Y
DEFINE T2*
Give this one a try later!
T2 DECAY CAUSED BY BOTH MAGNETIC FIELD INHOMOGENEITIES AND
SPIN-SPIN INTERACTIONS
NAME THE FOUR FACTORS THAT INFLUENCE THE AMOUNT OF IN-FLOW EFFECT
(ENTRY SLICH PHENOMENON) PRESENT IN THE IMAGE. WHICH IS THE MOST
SIGNIFICANT
Give this one a try later!
FLOW DIRECTION (MOST)
TR
SLICE THICKNESS
FLOW VELOCITY
SPINS MUST BE MANIPULATED IN TWO WAYS TO PRODUCE A USEFUL SIGNAL.
NAME THEM
Give this one a try later!
