MRI-
ARRT Study Guide Questions/ Exam Questions with Cor
h h h h h h h
rect Verified Answers – Latest Update 2024.
h h h h h h
ThehNMVhishrotatedhtohthehphysicalhnegativehZhaxishbyhapplyingha...?h-hCorrecthAnswerh-hC)180hpulse
Increasinghwhichhparameterhishconsideredhtheh"best"htechniquehforhimprovinghimagehquality?h-
hCorrecthAnswerh-hC)NEX
Studieshhavehconcludedhthathstatichmagnetichfieldshuphtohwhathteslahproducehnohsubstantialhharmfulhbiol
ogicalheffects.h-hCorrecthAnswerh-hC)2.0
Tissueshthathhavehlowh(short)hrelaxationhtimeshhave:h-hCorrecthAnswerh-hHigherhrelaxationhrates
Nucleihinhtheirhnaturalhenviromenth(hinhthehabsencehofhahsignificanthmagnetichfield)harehaligned...h-
hCorrecthAnswerh-hRandomly
Followinghthehinjectionhofhahgadoliniumhenhancementhagent,hthehpulsehsequencehmosthcommonlyhemplo
yedhisha...h-hCorrecthAnswerh-hC)T1hweighted
EmployinghahpulsehsequencehwithhahlonghTRh&hahlonghTEhwillhresulthinhtissueshwithhahshorthT2hvaluehappe
aringhWHATh&htissueshwithhahlonghT2happearinghWHAThonhthehresultanthimage.h-hCorrecthAnswerh-
hD)Dark/bright
Whichhgradienthaxishdirectionhishtypicallyh(forheducationalhpurposes)hdesignatedhashthehslicehselectionhgra
dient?h-hCorrecthAnswerh-hC)LogicalhZhgradient
Electromagnetichcoilshplacedhstrategicallyhtohcontainhthehfringehfields.h-hCorrecthAnswerh-
h2)Activehshielding
pg.h1
,1hmilliliterhofhH2Ohcontainshhowhmanyhhydrogenhprotons?h-hCorrecthAnswerh-h6h×10htohthh23power
WhichhofhthehfollowinghstatementshishtruehforhgadoliniumhMRIhIVhenhancementhproducts?h-
hCorrecthAnswerh-hB)hproduceshrandomlyhfluctuatinghmagnetichfieldshinhitshimmediatehenviroment.
Thehmaximumhexposurehtohradiofrequencyhinh1hgramhofhtissuehis:h-hCorrecthAnswerh-
hD)hahmaximumhspatialhpeakhofh8hw/kg
Currently,hpatientsh&hpersonnelharrhexludedhfromhexposurehtohMRIhforhtheh1sthtrimesterhofhpregnancy.h-
hCorrecthAnswerh-hTrue
Thehmaximumhexposurehtohradiohfrequencyhaveragedhoverhthehheadhis:h-hCorrecthAnswerh-
hB)Nohmorehthanh3.2hw/kg
Thehrecievehsignalhamplitudehforhahpixelhusuallyhdependshonhthrhsubstance's...h-hCorrecthAnswerh-hA)hT1,hT2
,hprotonhdensity
Smallhmagnetichfieldhintoducedhtohthehhydrogenhprotonshinhorderhtohcausehthemhyohmovehfromhthehlowhe
nergyhstatehtohthehhighhenergyhstatehis...h-hCorrecthAnswerh-hC)hRFhpulse
athanyhonehtime,hhumanhbodyhtissue,hinhgeneral,hishmadehuphofh50%-90%hofhwhathsubstance?h-
hCorrecthAnswerh-hHydrogen.
oncehthehpatient'shareahofhinteresthishplacedhinhthehmainhmagnetichfieldhofhthehMRIhsystem,hthehhydrogenhprot
onshwill...h-hCorrecthAnswerh-hprecesshparallelhtohBhsubhzero
Inhmosthtissueshhydrogenhconcentrationhvariesh-hCorrecthAnswerh-h10%-htoh15%
T1hishthehmeasurementhofhtimehforhthehlongitudinalhcomponenthofhthehnethmagnetizationhvectorhto
recoverhwhathpercentagehofhitshoriginalhvaluehafterhthehapplicationhofhah90hdegreehradiohfrequencyhpulse?h-
hCorrecthAnswerh-h63%
pg.h2
,becausehofhthehspinninghmotionhofhthehhydrogenhproton,hithhashthehsamehpropertieshashahbarhmagnet.hthehhyd
rogenhprotonhspinninghmotionhgiveshitha...h-hCorrecthAnswerh-hmagnetichmoment
Magnetichresonancehimaginghishderivedhfromhthehprocesshknownhas...h-hCorrecthAnswerh-
hNuclearhmagnetichresonance
normallyhenhancinghstructureshposthgadoliniumh-hCorrecthAnswerh-hchoroidhplexus
becausehofhonlyhah10%htoh15%hvariationhinhmosthtissues,hthehtissuehcharacterhthathdoeshnothprovidehmuchhcont
rasthresolution...h-hCorrecthAnswerh-hhydrogenhconcentration
Anhinversionhrecoveryhpulsehsequencehcanhbehwhichhofhthehfollowing?h-hCorrecthAnswerh-hACC
RF.
averagehoverhthehwholehbodyhishanswerh1.haverage
dhoverhthehheadhishanswerh2.
inhonehgramh(1gr)hofhtissuehishanswerh3.h-hCorrecthAnswerh-h1.C)hnohmorehthanh0.4hw/kg
2.A)hnohmorehthanh3.2w/kg
3.B)hmaximumhspatialhpeakhifh8hw/kg
onhT1hweightedhimageshsub-acutehhemorrhagehwillhappearhbright?h-hCorrecthAnswerh-hTRUE
whichhcharacteristichofhtissue,hinhMRI,hishthehresulthofhfasthtransitionhphenomenonh&/orhentryhphenomen
on?h-hCorrecthAnswerh-hflow/velocityheffects
radiohfrequencyhRFhcoilshthatharehplacedhclosehtohthehpatient'shbodyhspecificallyhforhstructureshthatharehsup
erficialh&harehreceivehcoilshonlyhare...h-hCorrecthAnswerh-hsurfacehcoils
chemicalhshifthartifactshwillhshowhuphonhthehimagehinhwhathgradienthdirection?h-hCorrecthAnswerh-
hB)hfrequencyhencoding
pg.h3
, coilshthathsuperimposehsmallhmagnetichfieldshwithinhthehpatienthduringhthehMRIhprocessh&hallowhforhspeci
alhencodinghare...h-hCorrecthAnswerh-hgradienthcoils
InhanhInversionhRecoveryhpulsehsequencehwhathTIhwillhproducehSTIRhfat-suppressedhpulsehsequence?h-
hCorrecthAnswerh-h80-120
ThehLarmorhprecessionalhorhresonancehfrequencyhofhhydrogenhprotonshinhahstatichmagnetichfieldhofh0.5hishappr
oximately...h-hCorrecthAnswerh-h21.288hMHz
Residual,hundesirablehgradienthmagnetichfieldshthathpersisthforhahvariablehtimehdurationhafterhthehpulsehofhele
ctricityhfromhthehgradienthpowerhsupplyhishterminatedharehknownhas...h-hCorrecthAnswerh-hEddyhCurrents
whichhparameterhinhahpulsehsequencehhelpshtohpreventh"crosshtalk"hbetweenh2hadjacenthimages?h-
hCorrecthAnswerh-hSlicehintervals
Patientshthathhavehimplantshsuchhashahpacemakerhorhneurstimulatorhshouldhnothgohbeyondhthe...h-
hCorrecthAnswerh-h5hgausshline
whenhincreasinghthehparameterhmatrix,hthehpixelhsizehwill...h-hCorrecthAnswerh-hdecrease
oncehthehMRIhpatienthishcomfortableh&hhashnohapparenthproblemhwithhthehoverallhprocedure,hithishaccep
tablehforhthehtechnologisthtohleavehthehscanninghareahwhilehahlonghscanhishunderwayh-hCorrecthAnswerh-
hfalse
thehtimehintervalhbetweenh90hdegreehRFhpulses.h-hCorrecthAnswerh-hTR
thehtissuehcharacteristichwhichhdependshmorehonhthehstateh(solid,hliquid,hgas)hofhahtissuehthanhotherhfactorh
is...h-hCorrecthAnswerh-hT2heffects
afterhah90hdegreehradiohfrequencyhpulse,hthehnethmagnetizationhvectorhbeginshtohreturnhtohequilibrium.h
WhenhNMVhishhalf-
wayhbetweenhtransverseh&hequilibrium,hwhatharehthehmagnitudeshofhthehlongitudinalhcomponenth&hthehtr
ansversehcomponent?h-hCorrecthAnswerh-hlongitudinalhcomponent=hgreaterhthanhzero
transversehcomponenth=hgreaterhthanhzero
pg.h4
ARRT Study Guide Questions/ Exam Questions with Cor
h h h h h h h
rect Verified Answers – Latest Update 2024.
h h h h h h
ThehNMVhishrotatedhtohthehphysicalhnegativehZhaxishbyhapplyingha...?h-hCorrecthAnswerh-hC)180hpulse
Increasinghwhichhparameterhishconsideredhtheh"best"htechniquehforhimprovinghimagehquality?h-
hCorrecthAnswerh-hC)NEX
Studieshhavehconcludedhthathstatichmagnetichfieldshuphtohwhathteslahproducehnohsubstantialhharmfulhbiol
ogicalheffects.h-hCorrecthAnswerh-hC)2.0
Tissueshthathhavehlowh(short)hrelaxationhtimeshhave:h-hCorrecthAnswerh-hHigherhrelaxationhrates
Nucleihinhtheirhnaturalhenviromenth(hinhthehabsencehofhahsignificanthmagnetichfield)harehaligned...h-
hCorrecthAnswerh-hRandomly
Followinghthehinjectionhofhahgadoliniumhenhancementhagent,hthehpulsehsequencehmosthcommonlyhemplo
yedhisha...h-hCorrecthAnswerh-hC)T1hweighted
EmployinghahpulsehsequencehwithhahlonghTRh&hahlonghTEhwillhresulthinhtissueshwithhahshorthT2hvaluehappe
aringhWHATh&htissueshwithhahlonghT2happearinghWHAThonhthehresultanthimage.h-hCorrecthAnswerh-
hD)Dark/bright
Whichhgradienthaxishdirectionhishtypicallyh(forheducationalhpurposes)hdesignatedhashthehslicehselectionhgra
dient?h-hCorrecthAnswerh-hC)LogicalhZhgradient
Electromagnetichcoilshplacedhstrategicallyhtohcontainhthehfringehfields.h-hCorrecthAnswerh-
h2)Activehshielding
pg.h1
,1hmilliliterhofhH2Ohcontainshhowhmanyhhydrogenhprotons?h-hCorrecthAnswerh-h6h×10htohthh23power
WhichhofhthehfollowinghstatementshishtruehforhgadoliniumhMRIhIVhenhancementhproducts?h-
hCorrecthAnswerh-hB)hproduceshrandomlyhfluctuatinghmagnetichfieldshinhitshimmediatehenviroment.
Thehmaximumhexposurehtohradiofrequencyhinh1hgramhofhtissuehis:h-hCorrecthAnswerh-
hD)hahmaximumhspatialhpeakhofh8hw/kg
Currently,hpatientsh&hpersonnelharrhexludedhfromhexposurehtohMRIhforhtheh1sthtrimesterhofhpregnancy.h-
hCorrecthAnswerh-hTrue
Thehmaximumhexposurehtohradiohfrequencyhaveragedhoverhthehheadhis:h-hCorrecthAnswerh-
hB)Nohmorehthanh3.2hw/kg
Thehrecievehsignalhamplitudehforhahpixelhusuallyhdependshonhthrhsubstance's...h-hCorrecthAnswerh-hA)hT1,hT2
,hprotonhdensity
Smallhmagnetichfieldhintoducedhtohthehhydrogenhprotonshinhorderhtohcausehthemhyohmovehfromhthehlowhe
nergyhstatehtohthehhighhenergyhstatehis...h-hCorrecthAnswerh-hC)hRFhpulse
athanyhonehtime,hhumanhbodyhtissue,hinhgeneral,hishmadehuphofh50%-90%hofhwhathsubstance?h-
hCorrecthAnswerh-hHydrogen.
oncehthehpatient'shareahofhinteresthishplacedhinhthehmainhmagnetichfieldhofhthehMRIhsystem,hthehhydrogenhprot
onshwill...h-hCorrecthAnswerh-hprecesshparallelhtohBhsubhzero
Inhmosthtissueshhydrogenhconcentrationhvariesh-hCorrecthAnswerh-h10%-htoh15%
T1hishthehmeasurementhofhtimehforhthehlongitudinalhcomponenthofhthehnethmagnetizationhvectorhto
recoverhwhathpercentagehofhitshoriginalhvaluehafterhthehapplicationhofhah90hdegreehradiohfrequencyhpulse?h-
hCorrecthAnswerh-h63%
pg.h2
,becausehofhthehspinninghmotionhofhthehhydrogenhproton,hithhashthehsamehpropertieshashahbarhmagnet.hthehhyd
rogenhprotonhspinninghmotionhgiveshitha...h-hCorrecthAnswerh-hmagnetichmoment
Magnetichresonancehimaginghishderivedhfromhthehprocesshknownhas...h-hCorrecthAnswerh-
hNuclearhmagnetichresonance
normallyhenhancinghstructureshposthgadoliniumh-hCorrecthAnswerh-hchoroidhplexus
becausehofhonlyhah10%htoh15%hvariationhinhmosthtissues,hthehtissuehcharacterhthathdoeshnothprovidehmuchhcont
rasthresolution...h-hCorrecthAnswerh-hhydrogenhconcentration
Anhinversionhrecoveryhpulsehsequencehcanhbehwhichhofhthehfollowing?h-hCorrecthAnswerh-hACC
RF.
averagehoverhthehwholehbodyhishanswerh1.haverage
dhoverhthehheadhishanswerh2.
inhonehgramh(1gr)hofhtissuehishanswerh3.h-hCorrecthAnswerh-h1.C)hnohmorehthanh0.4hw/kg
2.A)hnohmorehthanh3.2w/kg
3.B)hmaximumhspatialhpeakhifh8hw/kg
onhT1hweightedhimageshsub-acutehhemorrhagehwillhappearhbright?h-hCorrecthAnswerh-hTRUE
whichhcharacteristichofhtissue,hinhMRI,hishthehresulthofhfasthtransitionhphenomenonh&/orhentryhphenomen
on?h-hCorrecthAnswerh-hflow/velocityheffects
radiohfrequencyhRFhcoilshthatharehplacedhclosehtohthehpatient'shbodyhspecificallyhforhstructureshthatharehsup
erficialh&harehreceivehcoilshonlyhare...h-hCorrecthAnswerh-hsurfacehcoils
chemicalhshifthartifactshwillhshowhuphonhthehimagehinhwhathgradienthdirection?h-hCorrecthAnswerh-
hB)hfrequencyhencoding
pg.h3
, coilshthathsuperimposehsmallhmagnetichfieldshwithinhthehpatienthduringhthehMRIhprocessh&hallowhforhspeci
alhencodinghare...h-hCorrecthAnswerh-hgradienthcoils
InhanhInversionhRecoveryhpulsehsequencehwhathTIhwillhproducehSTIRhfat-suppressedhpulsehsequence?h-
hCorrecthAnswerh-h80-120
ThehLarmorhprecessionalhorhresonancehfrequencyhofhhydrogenhprotonshinhahstatichmagnetichfieldhofh0.5hishappr
oximately...h-hCorrecthAnswerh-h21.288hMHz
Residual,hundesirablehgradienthmagnetichfieldshthathpersisthforhahvariablehtimehdurationhafterhthehpulsehofhele
ctricityhfromhthehgradienthpowerhsupplyhishterminatedharehknownhas...h-hCorrecthAnswerh-hEddyhCurrents
whichhparameterhinhahpulsehsequencehhelpshtohpreventh"crosshtalk"hbetweenh2hadjacenthimages?h-
hCorrecthAnswerh-hSlicehintervals
Patientshthathhavehimplantshsuchhashahpacemakerhorhneurstimulatorhshouldhnothgohbeyondhthe...h-
hCorrecthAnswerh-h5hgausshline
whenhincreasinghthehparameterhmatrix,hthehpixelhsizehwill...h-hCorrecthAnswerh-hdecrease
oncehthehMRIhpatienthishcomfortableh&hhashnohapparenthproblemhwithhthehoverallhprocedure,hithishaccep
tablehforhthehtechnologisthtohleavehthehscanninghareahwhilehahlonghscanhishunderwayh-hCorrecthAnswerh-
hfalse
thehtimehintervalhbetweenh90hdegreehRFhpulses.h-hCorrecthAnswerh-hTR
thehtissuehcharacteristichwhichhdependshmorehonhthehstateh(solid,hliquid,hgas)hofhahtissuehthanhotherhfactorh
is...h-hCorrecthAnswerh-hT2heffects
afterhah90hdegreehradiohfrequencyhpulse,hthehnethmagnetizationhvectorhbeginshtohreturnhtohequilibrium.h
WhenhNMVhishhalf-
wayhbetweenhtransverseh&hequilibrium,hwhatharehthehmagnitudeshofhthehlongitudinalhcomponenth&hthehtr
ansversehcomponent?h-hCorrecthAnswerh-hlongitudinalhcomponent=hgreaterhthanhzero
transversehcomponenth=hgreaterhthanhzero
pg.h4
