ARRT MRI MOCK REGISTRY
QUESTIONS WITH CORRECT ANSWERS
When simaging sa sgeriatric spatient, swhile sperforming sa sPCA sMRA ssequence, swhat
simaging sparameter smight sthe soperator sadjust?
sA. sField sof sview
sB. sPresaturation sband slocation
sC. sSlice sthickness
sD. sVENC
sE. sContrast sinjection srate s- sANS--VENC
As sthe snumber sof sphase sencodings sis sincreased sfrom s256 sto s512, sSNR s(signal sto
snoise sratio):
sA. sIncreases
sB. sDecreases
sC. sDoubles
sD. sDoes snot schange
sE. sQuadruples s- sANS--Decreases
A smagnetic svector spossesses sattributes sof sboth s__________ sand s_____________.
sA. sStrength; smagnitude
sB. sDirection; spurpose
sC. sStrength; sflow
sD. sMagnitude; sdirection s- sANS--Magnitude; sdirection
What selement sin sthe sbody sis sthe sprincipal snucleus sutilized sin sclinical sMR simaging?
sA. sHelium
sB. sHydrogen
sC. sOxygen
sD. sCalcium s- sANS--Hydrogen
Which sof sthe sfollowing sbest sdescribes san sIR ssequence?
sA. sA s180° spulse sfollowed sby sa s90°/180° scombination
sB. sA s90° spulse sfollowed sby sa s180° spulse
sC. sA strain sof sgradient sechoes
sD. sA strain sof sspin sechoes s- sANS--A s180° spulse sfollowed sby sa s90°/180°
scombination
Gradient secho ssequences srequiring shigh ssignal sfrom sfluid sare sknown sas sall sof sthe
sfollowing sEXCEPT:
sA. sT2* sgradient secho
sB. sSteady-state sgradient secho
sC. sCoherent sgradient secho
,sD. sIncoherent sgradient secho s- sANS--Incoherent sgradient secho
The smedial sand slateral srectus smuscles sare slocated sin sthe:
sA. sEars
sB. sPosterior spelvic sregion
sC. sProximal scalves
sD. sEyes
sE. sSuperior sshoulder sregions
sF. sSoft stissues sof sthe sneck s- sANS--Eyes
Reducing sthe snumber sof slines sfilled sin sk-space swill sproduce san simage:
sA. sWith sa sdecrease sin sspatial sresolution
sB. sWith sa sincrease sin sspatial sresolution
sC. sWith san sdecrease sin soverall sSNR
sD. sWith san sincrease sin soverall sSNR
sE. sWith sa sreduced soverall sscan stime
sF. sB, sC sand sE sonly
sG. sA, sD sand sE sonly s- sANS--A, sD sand sE sonly
Reducing sthe snumber sof slines sfilled sin sk-space sreduces sthe snumber sof sphase
sencoding ssteps, sresulting sin sshorter sscan stime, san sincrease sin soverall sSNR, sbut sa
sdecrease sin sspatial sresolution.
The ssmallest sobject sthat scan sbe sresolved sin san simage sacquired swith sa s24cm sFOV
sand sa s272 sx s272 smatrix sis s_________ smm.
sA. s0.76mm
sB. s0.88mm
sC. s0.93mm
sD. s1.13mm
sE. s1.24mm s- sANS--0.88mm
To sproduce san simage sbased son sdifferences sin sT1, sthe stime sinterval sbetween s90°
sexcitation spulses sshould sbe:
sA. sLong
sB. sShort
sC. sRefocussed
sD. sInverted s- sANS--Short
The senergy sused sto sform sMRI simages sis s____________ sthe spatient's stissues.
sA. sEmitted sfrom
sB. sAttenuated sby
sC. sAmplified sfrom
sD. sReflected soff s- sANS--Emitted sfrom
, Referencing sthe sCenters sfor sDisease sControl sand sPrevention s(CDC), swhat stype sof
sisolation sprecautions sshould sbe sused sfor sHIV-positive spatients sin sthe sMRI ssuite?
sA. sRespiratory
sB. sDroplet
sC. sStandard s(universal)
sD. sEnteric
sE. sContact s- sANS--Standard s(universal)
___________ scould sbe sused sto sline sthe swalls sand/or sfloors sof sthe sMR smagnet
sroom sto sreduce sthe sfringe sfield, sand sis sdefined sas s__________ sshielding.
sA. sCopper; sactive
sB. sSteel; sactive
sC. sCopper; spassive
sD. sSteel; spassive
sE. sLead; sactive s- sANS--Steel; spassive
If sthe sTR sin sa sgradient secho ssequence sis sless sthan sthe sT2 s(or sT2*), sthe sresulting
scondition sis sknown sas:
sA. sSpin sdown
sB. sSteady sstate
sC. sSpin sdephasement
sD. sThermal sequilibrium s- sANS--Steady sstate
Which stype sof sblood scell sis sresponsible sfor sphagocytosis?
sA. sLeukocyte
sB. sErythrocyte
sC. sLymphocyte
sD. sPlatelet s- sANS--Leukocyte
Which sof sthe sfollowing, sin san sMRA ssequence, saids sin sminimizing sthe sloss sof
ssignal sdue sto sdephasing swithin sa svoxel:
sA. sLong sTE
sB. sShort sTR
sC. sSmaller svoxel ssize
sD. sShort sTE
sE. sC sand sD s- sANS--C sand sD
In sorder sto sacquire san sintracranial sarterial sblood sflow ssequence, sa spresaturation
spulse swould sbe sapplied sin swhich slocation?
sA. sBelow sthe sheart
sB. sAnterior sto sbrain
sC. sInferior sto sslice sgroup
sD. sSuperior sto sslice sgroup s- sANS--Superior sto sslice sgroup
Which sof sthe sfollowing sbest sdescribes san sEPI ssequence?
sA. sA s180° spulse sfollowed sby sa s90°/180° scombination
QUESTIONS WITH CORRECT ANSWERS
When simaging sa sgeriatric spatient, swhile sperforming sa sPCA sMRA ssequence, swhat
simaging sparameter smight sthe soperator sadjust?
sA. sField sof sview
sB. sPresaturation sband slocation
sC. sSlice sthickness
sD. sVENC
sE. sContrast sinjection srate s- sANS--VENC
As sthe snumber sof sphase sencodings sis sincreased sfrom s256 sto s512, sSNR s(signal sto
snoise sratio):
sA. sIncreases
sB. sDecreases
sC. sDoubles
sD. sDoes snot schange
sE. sQuadruples s- sANS--Decreases
A smagnetic svector spossesses sattributes sof sboth s__________ sand s_____________.
sA. sStrength; smagnitude
sB. sDirection; spurpose
sC. sStrength; sflow
sD. sMagnitude; sdirection s- sANS--Magnitude; sdirection
What selement sin sthe sbody sis sthe sprincipal snucleus sutilized sin sclinical sMR simaging?
sA. sHelium
sB. sHydrogen
sC. sOxygen
sD. sCalcium s- sANS--Hydrogen
Which sof sthe sfollowing sbest sdescribes san sIR ssequence?
sA. sA s180° spulse sfollowed sby sa s90°/180° scombination
sB. sA s90° spulse sfollowed sby sa s180° spulse
sC. sA strain sof sgradient sechoes
sD. sA strain sof sspin sechoes s- sANS--A s180° spulse sfollowed sby sa s90°/180°
scombination
Gradient secho ssequences srequiring shigh ssignal sfrom sfluid sare sknown sas sall sof sthe
sfollowing sEXCEPT:
sA. sT2* sgradient secho
sB. sSteady-state sgradient secho
sC. sCoherent sgradient secho
,sD. sIncoherent sgradient secho s- sANS--Incoherent sgradient secho
The smedial sand slateral srectus smuscles sare slocated sin sthe:
sA. sEars
sB. sPosterior spelvic sregion
sC. sProximal scalves
sD. sEyes
sE. sSuperior sshoulder sregions
sF. sSoft stissues sof sthe sneck s- sANS--Eyes
Reducing sthe snumber sof slines sfilled sin sk-space swill sproduce san simage:
sA. sWith sa sdecrease sin sspatial sresolution
sB. sWith sa sincrease sin sspatial sresolution
sC. sWith san sdecrease sin soverall sSNR
sD. sWith san sincrease sin soverall sSNR
sE. sWith sa sreduced soverall sscan stime
sF. sB, sC sand sE sonly
sG. sA, sD sand sE sonly s- sANS--A, sD sand sE sonly
Reducing sthe snumber sof slines sfilled sin sk-space sreduces sthe snumber sof sphase
sencoding ssteps, sresulting sin sshorter sscan stime, san sincrease sin soverall sSNR, sbut sa
sdecrease sin sspatial sresolution.
The ssmallest sobject sthat scan sbe sresolved sin san simage sacquired swith sa s24cm sFOV
sand sa s272 sx s272 smatrix sis s_________ smm.
sA. s0.76mm
sB. s0.88mm
sC. s0.93mm
sD. s1.13mm
sE. s1.24mm s- sANS--0.88mm
To sproduce san simage sbased son sdifferences sin sT1, sthe stime sinterval sbetween s90°
sexcitation spulses sshould sbe:
sA. sLong
sB. sShort
sC. sRefocussed
sD. sInverted s- sANS--Short
The senergy sused sto sform sMRI simages sis s____________ sthe spatient's stissues.
sA. sEmitted sfrom
sB. sAttenuated sby
sC. sAmplified sfrom
sD. sReflected soff s- sANS--Emitted sfrom
, Referencing sthe sCenters sfor sDisease sControl sand sPrevention s(CDC), swhat stype sof
sisolation sprecautions sshould sbe sused sfor sHIV-positive spatients sin sthe sMRI ssuite?
sA. sRespiratory
sB. sDroplet
sC. sStandard s(universal)
sD. sEnteric
sE. sContact s- sANS--Standard s(universal)
___________ scould sbe sused sto sline sthe swalls sand/or sfloors sof sthe sMR smagnet
sroom sto sreduce sthe sfringe sfield, sand sis sdefined sas s__________ sshielding.
sA. sCopper; sactive
sB. sSteel; sactive
sC. sCopper; spassive
sD. sSteel; spassive
sE. sLead; sactive s- sANS--Steel; spassive
If sthe sTR sin sa sgradient secho ssequence sis sless sthan sthe sT2 s(or sT2*), sthe sresulting
scondition sis sknown sas:
sA. sSpin sdown
sB. sSteady sstate
sC. sSpin sdephasement
sD. sThermal sequilibrium s- sANS--Steady sstate
Which stype sof sblood scell sis sresponsible sfor sphagocytosis?
sA. sLeukocyte
sB. sErythrocyte
sC. sLymphocyte
sD. sPlatelet s- sANS--Leukocyte
Which sof sthe sfollowing, sin san sMRA ssequence, saids sin sminimizing sthe sloss sof
ssignal sdue sto sdephasing swithin sa svoxel:
sA. sLong sTE
sB. sShort sTR
sC. sSmaller svoxel ssize
sD. sShort sTE
sE. sC sand sD s- sANS--C sand sD
In sorder sto sacquire san sintracranial sarterial sblood sflow ssequence, sa spresaturation
spulse swould sbe sapplied sin swhich slocation?
sA. sBelow sthe sheart
sB. sAnterior sto sbrain
sC. sInferior sto sslice sgroup
sD. sSuperior sto sslice sgroup s- sANS--Superior sto sslice sgroup
Which sof sthe sfollowing sbest sdescribes san sEPI ssequence?
sA. sA s180° spulse sfollowed sby sa s90°/180° scombination
