ARRT PRINCIPLES OF MRI FINAL EXAM REVIEW
Study online at https://quizlet.com/_4mo1yf
1. 3D gradient echo axial views can be used in cervical Thin, contiguous sections
spine imaging to provide of the spine, the ability
to reformat into any oth-
er imaging plane, retro-
spectively, the ability to get
either T1, spin density or
T2* information by chang-
ing parameters.
2. In complete spine imaging, to rule out metastatic le- metastatic lesions en-
sions of the spinal cord, contrast enhancement can be hance and normal cord
used with T1 weighted images because does not
3. Due to the differences in frequencies across the mag- use gradients, use sat
netic field we bands, s. suse sditterent scoils
4. To avoid the "magic angle" (an artifactual brightness use sa slonger sTE, sreposi-
seen in the smedial ssegment sof sthe sposterior shorn stion sthe sknee, sorient sthe saf-
sof
the slateral smeniscus swhen sshort sTEs sare sused) sartifact s fectedsanatomysto
sanoth-
when simaging sthe sknee, er sangle
5. To sbest svisualize sthe santerior scruciate sligament externally srotate sthe sleg
son sknee sMR sabout s15
6. When susing sMRA sto sevaluate sintracranial 3D stime sof sflight sMRA sor
svascularity,
flow swithin ssmaller svessels scan sbest sbe sdemonstrated s 3DsphasescontrastsMRA
by
7. To sproduce sthe secho, sa sgradient secho spulse ssequence s asgradientsmagnetic
sfield
uses
, ARRT PRINCIPLES OF MRI FINAL EXAM REVIEW
Study online at https://quizlet.com/_4mo1yf
8. The s rate s of s dephasing s due s to s inhomogeneities only
s is scalled
T2 sinhomogeneity
, ARRT PRINCIPLES OF MRI FINAL EXAM REVIEW
Study online at https://quizlet.com/_4mo1yf
9. If sthe sTR sof sa sgradient secho spulse ssequence sis steady sstate
sconsid- serably sless sthan sthe sT2 s(and sT2*), sthe
scondition sthat swill sexist sis sknown sas
10. The sgradient sthat sis son sduring sthe sproduction sof frequency
sthe secho sis sthe s encoding sgradient
11. The sgradient sthat sis son slongest sis sthe s encod- sfrequency
ing sgradient
12. The sfour sphases sof sa sspin secho spulse ssequence, Excitation, sencoding, srefo-
sin scorrect sorder, sare scusing, sreadout.
13. Using san sNSA sof s3, sif sa sphase sresolution sof s192 576 stimes
sis sdesired, sthen sthe sTR smust sbe srepeated
14. In sa sfast sspin secho ssequence, sthe seffective sTE sis Low samplitude sphase sen-
sthe secho sthat sis sperformed swith sthe scoding sgradient.
15. In sa s2D smultiecho spulse ssequence, sETL s= s8, sscan Number sof ssignals saver-
stime sis sgiven sby sthe sequation sTR sx saged sx snumber sof sphase
sencodings s/ sthe snumber
sof sechoes.
16. When susing sMRA sto sevaluate sextracranial svascular 2D stime sof sflight sMRA
sflow, ssuch sas sthat swithin scommon scarotid sarteries,
sa srecommended stechnique sis
17. When s using s bright s blood s MRA s to s evaluate placed sinferior sto sthe sac-
s peripheral svascular sflow, ssuch sas sthat swithin sthe squired sslices
sarteries sof sthe slegs, ssaturation spulses sare
18. In s a s 3D s acquisition, s the s slices s are s produced s by A sphase sencoding sgradi-
ent sapplied sin sthe sslice sdi-
Study online at https://quizlet.com/_4mo1yf
1. 3D gradient echo axial views can be used in cervical Thin, contiguous sections
spine imaging to provide of the spine, the ability
to reformat into any oth-
er imaging plane, retro-
spectively, the ability to get
either T1, spin density or
T2* information by chang-
ing parameters.
2. In complete spine imaging, to rule out metastatic le- metastatic lesions en-
sions of the spinal cord, contrast enhancement can be hance and normal cord
used with T1 weighted images because does not
3. Due to the differences in frequencies across the mag- use gradients, use sat
netic field we bands, s. suse sditterent scoils
4. To avoid the "magic angle" (an artifactual brightness use sa slonger sTE, sreposi-
seen in the smedial ssegment sof sthe sposterior shorn stion sthe sknee, sorient sthe saf-
sof
the slateral smeniscus swhen sshort sTEs sare sused) sartifact s fectedsanatomysto
sanoth-
when simaging sthe sknee, er sangle
5. To sbest svisualize sthe santerior scruciate sligament externally srotate sthe sleg
son sknee sMR sabout s15
6. When susing sMRA sto sevaluate sintracranial 3D stime sof sflight sMRA sor
svascularity,
flow swithin ssmaller svessels scan sbest sbe sdemonstrated s 3DsphasescontrastsMRA
by
7. To sproduce sthe secho, sa sgradient secho spulse ssequence s asgradientsmagnetic
sfield
uses
, ARRT PRINCIPLES OF MRI FINAL EXAM REVIEW
Study online at https://quizlet.com/_4mo1yf
8. The s rate s of s dephasing s due s to s inhomogeneities only
s is scalled
T2 sinhomogeneity
, ARRT PRINCIPLES OF MRI FINAL EXAM REVIEW
Study online at https://quizlet.com/_4mo1yf
9. If sthe sTR sof sa sgradient secho spulse ssequence sis steady sstate
sconsid- serably sless sthan sthe sT2 s(and sT2*), sthe
scondition sthat swill sexist sis sknown sas
10. The sgradient sthat sis son sduring sthe sproduction sof frequency
sthe secho sis sthe s encoding sgradient
11. The sgradient sthat sis son slongest sis sthe s encod- sfrequency
ing sgradient
12. The sfour sphases sof sa sspin secho spulse ssequence, Excitation, sencoding, srefo-
sin scorrect sorder, sare scusing, sreadout.
13. Using san sNSA sof s3, sif sa sphase sresolution sof s192 576 stimes
sis sdesired, sthen sthe sTR smust sbe srepeated
14. In sa sfast sspin secho ssequence, sthe seffective sTE sis Low samplitude sphase sen-
sthe secho sthat sis sperformed swith sthe scoding sgradient.
15. In sa s2D smultiecho spulse ssequence, sETL s= s8, sscan Number sof ssignals saver-
stime sis sgiven sby sthe sequation sTR sx saged sx snumber sof sphase
sencodings s/ sthe snumber
sof sechoes.
16. When susing sMRA sto sevaluate sextracranial svascular 2D stime sof sflight sMRA
sflow, ssuch sas sthat swithin scommon scarotid sarteries,
sa srecommended stechnique sis
17. When s using s bright s blood s MRA s to s evaluate placed sinferior sto sthe sac-
s peripheral svascular sflow, ssuch sas sthat swithin sthe squired sslices
sarteries sof sthe slegs, ssaturation spulses sare
18. In s a s 3D s acquisition, s the s slices s are s produced s by A sphase sencoding sgradi-
ent sapplied sin sthe sslice sdi-
