Medisch Beeldvormende en Radiotherapeutische Technieken
Minor MB1
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By: moniquehemminga • 4 year ago
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Inhoudsopgave
GRADIËNT ECHO.................................................................................2
DE BASIS............................................................................................................... 2
UITLEG FID EN T2*.................................................................................................. 5
GRADIËNT TECHNIEKEN............................................................................................. 6
Coherente gradiëntecho...................................................................................... 6
incoherent gradiëntecho...................................................................................... 6
Steady state free precession................................................................................7
STUDIE ONDERDEEL 7............................................................................................... 9
FLOW FENOMENEN............................................................................12
4 PRINCIPES VAN FLOW........................................................................................... 12
VRAGEN BIJ STUDIEONDERDEEL 1:............................................................................. 12
HET TOF-FENOMEEN.............................................................................................. 13
TOV in een SE sequentie..................................................................................13
TOV in GRE-sequentie...................................................................................... 13
Entry-slice fenomenen...................................................................................... 14
Flow fenomenen compensatie............................................................................16
ARTEFACTEN.....................................................................................20
BLURRING............................................................................................................ 20
CHEMICAL SHIFT.................................................................................................... 20
ALIASING/WRAP AROUND/GHOSTING..........................................................................20
PARTIAL VOLUME ARTEFACT..................................................................................... 21
PHASE-MISMAPPING/GHOSTING................................................................................. 21
SUSCEPTIBILITY..................................................................................................... 21
STREEPARTEFACT.................................................................................................. 21
MRA.................................................................................................22
VRAGEN BIJ STUDIEONDERDEEL 1.............................................................................. 22
AANTEKENINGEN LES MRA-020............................................................................... 23
VASCULAIR AND CARDIC IMAGING......................................................25
CONVENTIONELE MRI TECHNIEKEN............................................................................25
Black blood imaging...................................................................................... 26
Bright blood imaging..................................................................................... 26
MRA................................................................................................................... 26
Digitale subtratie MRA.................................................................................. 27
Time of flight MRA......................................................................................... 27
EXTRA INFORMATIE...........................................................................28
GRADIËNTEN........................................................................................................ 28
Plakselectie..................................................................................................... 28
Fasecodering................................................................................................... 29
Frequentiecodering........................................................................................... 29
SEQUENTIES......................................................................................................... 30
Turbo Spin Echo Sequentie (TSE/FSE/RSE)........................................................30
Inversion Recovery (IR)..................................................................................... 30
Short TI Inversion Recovery(STIR)......................................................................30
FLuid Attenduated Inversion Recoverie (FLAIR)....................................................30
AANTEKENINGEN COLLEGE MRI-BASIS 6....................................................................31
BIJLAGE............................................................................................32
BIJLAGE 1............................................................................................................ 32
BIJLAGE 2............................................................................................................ 33
BIJLAGE 3............................................................................................................ 34
, Gradiënt echo
De basis
2
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