ARRT MRI MOCK REGISTRY QUESTIONS AND CORRECT VERIFIED ANSWERS

ARRT MRI MOCK REGISTRY QUESTIONS
AND CORRECT VERIFIED ANSWERS
WhenA2imagingA2aA2geriatricA2patient,A2whileA2performingA2aA2PCAA2MRAA2sequence,A2w
hatA2imagingA2parameterA2mightA2theA2operatorA2adjust?
A2A.A2FieldA2ofA2view
A2B.A2PresaturationA2bandA2location
A2C.A2SliceA2thickness
A2D.A2VENC
A2E.A2ContrastA2injectionA2rateA2-A2Ans--VENC


AsA2theA2numberA2ofA2phaseA2encodingsA2isA2increasedA2fromA2256A2toA2512,A2SNRA2(sig
nalA2toA2noiseA2ratio):
A2A.A2Increases
A2B.A2Decreases
A2C.A2Doubles
A2D.A2DoesA2notA2change
A2E.A2QuadruplesA2-A2Ans--Decreases


AA2magneticA2vectorA2possessesA2attributesA2ofA2bothA2__________A2andA2___________
__.
A2A.A2Strength;A2magnitude
A2B.A2Direction;A2purpose
A2C.A2Strength;A2flow
A2D.A2Magnitude;A2directionA2-A2Ans--Magnitude;A2direction


WhatA2elementA2inA2theA2bodyA2isA2theA2principalA2nucleusA2utilizedA2inA2clinicalA2MRA2ima
ging?
A2A.A2Helium
A2B.A2Hydrogen
A2C.A2Oxygen
A2D.A2CalciumA2-A2Ans--Hydrogen


WhichA2ofA2theA2followingA2bestA2describesA2anA2IRA2sequence?
A2A.A2AA2180°A2pulseA2followedA2byA2aA290°/180°A2combination
A2B.A2AA290°A2pulseA2followedA2byA2aA2180°A2pulse
A2C.A2AA2trainA2ofA2gradientA2echoes
A2D.A2AA2trainA2ofA2spinA2echoesA2-A2Ans--AA2180°A2pulseA2followedA2byA2aA290°/
180°A2combination

GradientA2echoA2sequencesA2requiringA2highA2signalA2fromA2fluidA2areA2knownA2asA2allA2of
A2theA2followingA2EXCEPT:
A2A.A2T2*A2gradientA2echo
A2B.A2Steady-stateA2gradientA2echo

,A2C.A2CoherentA2gradientA2echo
A2D.A2IncoherentA2gradientA2echoA2-A2Ans--IncoherentA2gradientA2echo


TheA2medialA2andA2lateralA2rectusA2musclesA2areA2locatedA2inA2the:
A2A.A2Ears
A2B.A2PosteriorA2pelvicA2region
A2C.A2ProximalA2calves
A2D.A2Eyes
A2E.A2SuperiorA2shoulderA2regions
A2F.A2SoftA2tissuesA2ofA2theA2neckA2-A2Ans--Eyes


ReducingA2theA2numberA2ofA2linesA2filledA2inA2k-spaceA2willA2produceA2anA2image:
A2A.A2WithA2aA2decreaseA2inA2spatialA2resolution
A2B.A2WithA2aA2increaseA2inA2spatialA2resolution
A2C.A2WithA2anA2decreaseA2inA2overallA2SNR
A2D.A2WithA2anA2increaseA2inA2overallA2SNR
A2E.A2WithA2aA2reducedA2overallA2scanA2time
A2F.A2B,A2CA2andA2EA2only
A2G.A2A,A2DA2andA2EA2onlyA2-A2Ans--A,A2DA2andA2EA2only




ReducingA2theA2numberA2ofA2linesA2filledA2inA2k-
spaceA2reducesA2theA2numberA2ofA2phaseA2encodingA2steps,A2resultingA2inA2shorterA2scan
A2time,A2anA2increaseA2inA2overallA2SNR,A2butA2aA2decreaseA2inA2spatialA2resolution.


TheA2smallestA2objectA2thatA2canA2beA2resolvedA2inA2anA2imageA2acquiredA2withA2aA224cm
A2FOVA2andA2aA2272A2xA2272A2matrixA2isA2_________A2mm.
A2A.A20.76mm
A2B.A20.88mm
A2C.A20.93mm
A2D.A21.13mm
A2E.A21.24mmA2-A2Ans--0.88mm


ToA2produceA2anA2imageA2basedA2onA2differencesA2inA2T1,A2theA2timeA2intervalA2betweenA
290°A2excitationA2pulsesA2shouldA2be:
A2A.A2Long
A2B.A2Short
A2C.A2Refocussed
A2D.A2InvertedA2-A2Ans--Short


TheA2energyA2usedA2toA2formA2MRIA2imagesA2isA2____________A2theA2patient'sA2tissues.
A2A.A2EmittedA2from
A2B.A2AttenuatedA2by
A2C.A2AmplifiedA2from
A2D.A2ReflectedA2offA2-A2Ans--EmittedA2from

, ReferencingA2theA2CentersA2forA2DiseaseA2ControlA2andA2PreventionA2(CDC),A2whatA2type
A2ofA2isolationA2precautionsA2shouldA2beA2usedA2forA2HIV-
positiveA2patientsA2inA2theA2MRIA2suite?
A2A.A2Respiratory
A2B.A2Droplet
A2C.A2StandardA2(universal)
A2D.A2Enteric
A2E.A2ContactA2-A2Ans--StandardA2(universal)


___________A2couldA2beA2usedA2toA2lineA2theA2wallsA2and/
orA2floorsA2ofA2theA2MRA2magnetA2roomA2toA2reduceA2theA2fringeA2field,A2andA2isA2definedA2
asA2__________A2shielding.
A2A.A2Copper;A2active
A2B.A2Steel;A2active
A2C.A2Copper;A2passive
A2D.A2Steel;A2passive
A2E.A2Lead;A2activeA2-A2Ans--Steel;A2passive


IfA2theA2TRA2inA2aA2gradientA2echoA2sequenceA2isA2lessA2thanA2theA2T2A2(orA2T2*),A2theA2re
sultingA2conditionA2isA2knownA2as:
A2A.A2SpinA2down
A2B.A2SteadyA2state
A2C.A2SpinA2dephasement
A2D.A2ThermalA2equilibriumA2-A2Ans--SteadyA2state


WhichA2typeA2ofA2bloodA2cellA2isA2responsibleA2forA2phagocytosis?
A2A.A2Leukocyte
A2B.A2Erythrocyte
A2C.A2Lymphocyte
A2D.A2PlateletA2-A2Ans--Leukocyte


WhichA2ofA2theA2following,A2inA2anA2MRAA2sequence,A2aidsA2inA2minimizingA2theA2lossA2ofA
2signalA2dueA2toA2dephasingA2withinA2aA2voxel:
A2A.A2LongA2TE
A2B.A2ShortA2TR
A2C.A2SmallerA2voxelA2size
A2D.A2ShortA2TE
A2E.A2CA2andA2DA2-A2Ans--CA2andA2D


InA2orderA2toA2acquireA2anA2intracranialA2arterialA2bloodA2flowA2sequence,A2aA2presaturatio
nA2pulseA2wouldA2beA2appliedA2inA2whichA2location?
A2A.A2BelowA2theA2heart
A2B.A2AnteriorA2toA2brain
A2C.A2InferiorA2toA2sliceA2group
A2D.A2SuperiorA2toA2sliceA2groupA2-A2Ans--SuperiorA2toA2sliceA2group