Temporomandibular JointLocalizer: Joint derangement Sagial oblique: - refer to the axial plane - orient the scan perpendicular to the condyle of the mandible (i.e., of the same side)

TemporomandibularJoint

MRIProtocolsoftheESSRArthri<sSubcommi=ee

Recommenda<onsoftheESSRArthri<sSubcommi=eefortheUseofMagne<cResonanceImaginginMusculoskeletalRheuma<cDiseases.SeminMusculoskeletRadiol2015;19:396–411

Ax=axial

CE=contrastenhanced

Cor=coronal

FOV=fieldofview

FS=fatsuppressed

PD=protondensity

Sag=sagi=al

TE=echo<me(ms)

TMJ=Temporomandibularjoint

TR=repe<<on<me(ms)

Acronyms

MRIscan

•  Pa<entinsupineposi<onwiththeheadfirst

•  Headcoil

Localizer:Inflammatorydisease

Coronal plane: refer to the axial plane, orient the scan parallel to thecondyleofthemandible(i.e.,ofthesamesidethathastobeexamined).Checkthecorrectposi<oningonthesagi=alplane.

Axial plane: refer to the sagi=al plane, orient the scan parallel to thehardpalateandcovertheen<reTMJfrom thecorpuscallosum uptotheangleofthejaw.If the head is <lted, the angula<on has to be adjusted on the coronalplane.

Sagi0alplane:refertotheaxialplane,orientthescanperpendiculartothe condyle of the mandible (i.e., of the same side that has to beexamined).Checkthecorrectposi<oningontheothertwoplanes.If the head is <lted, the angula<on has to be adjusted on the coronalplane.

CorT1(orAxT1)

AxT2FS(orSTIRorTIRM)

CorT2FS(orSTIRorTIRM)

CorT2

RecommendedSequences:Inflammatorydisease

Localizer:Jointderangement

Sagi0aloblique:-  refertotheaxialplane-  orient the scanperpendicular to the

condyleof themandible (i.e., of thesameside)

-  check the correct posi<oning on theothertwoplanes

-  thenumberofsliceshastocoverthejointfromsidetoside

TheMRscanhastobeperformed:•  withthemouthopenedandclosed•  ontherightandontheleaTMJ

SagobliquePDFSmouthclosed SagobliquePDFSmouthopened

RecommendedSequences:Jointderangement

SagobliquePDmouthclosed SagobliquePDmouthopened

RecommendedSequences:Jointderangement

MRIprotocols

RecommendedSequences

FOV(mm)

Slicethickness(mm)

TR(ms)

TE(ms)

Matrix

CorT1 230 3 420-620 10 256x256

AxT2 230 5 2500-5500 90 256x256

CorT2FS 230 3 2500-5000 100 256x256

CorT2 230 3 2200-3200 100 256x256

CET1FS(forsynovi<sand/orostei<s)

140 2.5 420-620 10 256x256

PDFSobliquemouthclosed&opened

140 2.5 2200-3200 24 256x256

PDobliquemouthclosed&opened

140 2.5 2200-3200 24 256x256

Inflammatory

disease

Joint

derangem

ent

•  AndreaKlauser,Austria•  IwonaSudoł-Szopińska,Poland

Contributors

ProjectCoordinators

•  ChiaraGiraudo,Italy•  HannesPlatzgummer,Austria