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8/18/2019 Ppt Pet (Positron Emission Tomography)
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KELOMPOK 2
1. Ary Lasminar Firdani(P1337430214089)
2. M. Ainul Mala (P1337430214048)
3. Yulistya Metta (P1337430214066)
4. Lisia (P1337430214024)
. M. !"a#y $ra%an (P1337430214068)
2 C
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PET (POSITRON EMISSION
TOMOGRAPHY ) and SPECT (&$'LP*+,+' M$&&$+' -+MP,!
,+M+/AP*Y)
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Prinsip Pencitraan Kedokteran Nuklir
•
Menuna#an radioisotop seaaisumer sinar amma denan eneri 8011 #e.
• /adiist5 dimasu##an #edalam ran
tuu yan di5eri#sa (in vivo).• +ran tubuh memencarkan radiasi
detektor mencatat 5a5aran diluar tuu.
•
Radiasi diubah menadi caha!a aayadiua menadi data di"ital data diitaldirekonstruksi menadi citradia"nostik#
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&P-, (&inle Ptn missin-m5uted ,mra5y)
te#ni# 5enitraan menuna#an sinar"amma secara tomo"ra% .
: *al ini sanat miri5 denan 5enitraannu#lir #ed#teran 5lanar #n;ensinalmenuna#an #amera amma (amma
amera). 'amun &P-, mam5u memeri#an3! in
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Men"enal SPECT
, &'()*an Metde sederana denan sinledetetr
, &'+)an ?en -lassen @: /etilinear &anner
, &'+, *al Aner @:Pin *le
A#ir t &'+)an Penunaan #ristal 'a$ dan PM,
, &'-, ul B d%ards mem5er#enal#an
amar tmraC yan diasil#an le Aner-amera.
, &'., 5enunaan compton camera untu#&P-,
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SPECT
1. amma -amera denandesain khusus.
•. Mem5unyai 1 2 atau 3detector head .
•. Ma#in anya# detetr eada#uisisi data ma#in e5at.
2./tatin amma -ameraberputar &.)/* ,-)/menelilini 5asien.
: A#uisisi data le detetr
•.!ida5at#an 1 seri amarmatriD dinami 5lanar.
•. ,erdiri dari 64 amar 5ada
matriD (128 D 128)
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• : ntu# menurani#eteratasan &P-, (#limatrdan %a#tu 5enamilan data)
ma#a : dilen"kapi den"andua atau ti"a kamerasintilasi !an" dapatber"erak men"elilin"ipasien.
: !enan multi #e5ala #ameradimun#in#an untu#menuna#an #limatr resolusi relati0 tin""i 5adasuatu atas #uantum mttledalam 5enitraan diandindenan #e5ala #amera tunal(amma amera)
*ead amera
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limatr yanumum diuna#an
5ada 5esa%at &P-,adala kolimatorparallel*hole.
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3 # Rekonstruksi data le#m5uter
1iltered back Proection
E!alam eera5a 0ormat transaDial saital rnal5lanar dan 3 dimensi.
: mem5enarui #ualitasdari 5rses ini
1. -llimatin
2. A#uisisi 5er slie
3. Gumla dari array 4. Gumla irisan yan
di5erle di se#itar lin#aran
. Gara#
6. Atenuasi tuu
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SPECT 7ORK $
http://var/www/apps/conversion/tmp/scratch_1/Molecular%20Nuclear%20Medicine-%20making%20personalized%20treatment%20a%20reality.mp4http://var/www/apps/conversion/tmp/scratch_1/Molecular%20Nuclear%20Medicine-%20making%20personalized%20treatment%20a%20reality.mp4
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Per#emanan dari amma #ameramen=adi &P-,
a. Menuna#an radio0armaka !an"seenis.
. PeruaanImodi%kasi 5adainstrumen 5enan#a5 radiasi(#limatr dan dete#tr). ,u=uannyauntu# menan#a5 eneri
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?eera5a 5eredaan eneri radi
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!alam tmraC denan emisi ada3 #eteratasan
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P, (P+&$,/+' M$&&$+' ,+M+/AP*Y)
5emeri#saan non*invasi0 yan da5at menamar#an0un"si seluler dari tuu #itasecara , dimensi denanmenuna#an radio0armaka.
P, san a#an mendete#sia#ti;itas metali dari selsel
tuu #ita. &elsel #an#er yana#ti< mem5unyai a#ti;itasmetali yan erlei.
(
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Pen!akit Kanker
• -e# u5 5eneaan #an#er sensiti;itas yan tini dalam mendete#sidini lesi #an#er stadium a%al
• Memeda#an stadium #an#er denan te5at
• Menari sumer #an#er atau #an#er 5rimer mau5un asil 5enyearannya(metastase)
•
Memantau dan mene;aluasi asil 5enatan 5erasi #emtera5i danraditera5i
Pen!akit Tumor
• MenidentiC#asi tumr anas atau =ina# serta tin#at #eanasannya
• Menu#ur denan te5at lin#u5 5enyinaran raditera5i #e sasaran tumr
• Memantu menentu#an 5sisi tumr yan te5at untu# mela#u#an tusu#an(i5sy)
Pen!akit :antun"
• Menentu#an #elainan tt =antun.
• Menentu#an ;iailitas sel tt =antun
Pen!akit Otak
• Menentu#an #elainan
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?eri#ut 5er#emanan s5et menu=u P,
• Ftn amma meru5a#an radiasi annihilasi• /adinu#lida C=N=O= 5emanar 5sitrn
di5rdu#si denan c!clotron
• >ata koinsiden (dete#trsir#uit)
• Konstruksi "antr! dan detektor se5erti5ada -, san
• Pencitraan 5lanar rsssetinal rnal.
•
Reolusi "ambar am5ir sama denan&P-,
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/adi
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&'YAA PM?AA
ntu# memba?a radioisotop di5erlu#anradi
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(aan radia#ti
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/an#aian yan da5at menidentiC#asi
intera#si dalam %a#tu ersamaan diseutanniilatin inidene detetin (A-!).Penitraan menuna#an anniilatininidene detetin (A-!) seaai
pen""anti kolimator untu# mem5erle5rye#si distriusi a#ti;itas dalam tuu.
anniilasi.
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ele#trn
enersinya #emar4)#+& MeB5
a n n i 6
i l a s i .
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O7 >OES 9 PET SC9N 7ORK $
http://var/www/apps/conversion/tmp/scratch_1/How%20Does%20a%20PET%20Scan%20Work.mp4http://var/www/apps/conversion/tmp/scratch_1/How%20Does%20a%20PET%20Scan%20Work.mp4
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P, (P+&$,/+' M$&&$+' ,+M+/AP*Y)
• *A&$L !A/$ P,&-A'
AO$AL-+/+'AL
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P, (P+&$,/+' M$&&$+' ,+M+/AP*Y)
• KELED;9N PET
1. $n
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Kelemahan dan Kelebihan SPECTdibandin"kan den"an PET
• -itra &P-, mem5unyai sensitiCtasdan detail yan #uran diandinP,.
• ,e#nli &P-, tida# semaal P,#arena &P-, enter lei mudadia#ses @: tida# arus erl#asi
de#at denan 5artile aeleratr.
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