TSIAJ Scan

Introduction

PET scan (Positron Emission Tomography) yog cov txheej txheem kev txiav txim siab siv los saib xyuas cov haujlwm metabolic ntawm cov ntaub so ntswg thiab cov kabmob hauv lub cev. Tsis zoo li cov txheej txheem kev yees duab ib txwm muaj, xws li X-rays lossis CT scans, uas feem ntau tsom rau cov qauv ntawm lub cev, PET scan qhia tias cov ntaub so ntswg thiab lub cev ua haujlwm li cas. Qhov no tuaj yeem muab kev nkag siab zoo rau ntau yam xwm txheej, suav nrog mob qog noj ntshav, kab mob plawv, thiab mob hlwb.

PET Scan yog dab tsi?

PET scan yog ib txoj kev kuaj xyuas uas tsis muaj kev cuam tshuam uas yuav pab cov kws kho mob kuaj xyuas thiab saib xyuas ntau yam mob, xws li mob qog noj ntshav, kab mob plawv, thiab mob paj hlwb. Lub hom phiaj tseem ceeb ntawm PET scan yog txhawm rau ntsuas qhov kev ua haujlwm metabolic ntawm cov ntaub so ntswg thiab cov kabmob los ntawm kev siv cov khoom siv hluav taws xob me me (hu ua radiotracer lossis contrast agent).

PET scan ua haujlwm los ntawm kev kuaj xyuas cov hluav taws xob tawm los ntawm lub tshuab hluav taws xob tom qab nws tau nkag mus rau hauv lub cev. Lub radiotracer, uas feem ntau yog ib daim ntawv ntawm cov piam thaj, yog nqus los ntawm cov kabmob thiab cov ntaub so ntswg hauv koj lub cev. Txij li cov hlwb ua haujlwm, zoo li cov qog nqaij hlav cancer, noj cov piam thaj ntau dua li cov hlwb ib txwm muaj, PET scan tuaj yeem kuaj pom thaj chaw uas muaj kev ua haujlwm metabolic ntau dua, pab cov kws kho mob nrhiav cov kab mob lossis saib xyuas lawv cov kev nce qib.

PET Scan ua haujlwm li cas?

Cov txheej txheem ntawm PET scan muaj ob peb kauj ruam tseem ceeb:

1. Kev txhaj tshuaj ntawm Radiotracer: Lub radiotracer, ib yam khoom uas feem ntau yog ua los ntawm cov piam thaj (fluorodeoxyglucose, lossis FDG), raug txhaj rau hauv cov hlab ntsha. Ib zaug hauv koj cov hlab ntsha, tus kab mob kis thoob plaws hauv koj lub cev thiab nqus los ntawm cov ntaub so ntswg thiab lub cev. Cov cell uas muaj cov metabolism hauv siab, xws li cov qog nqaij hlav cancer, nqus tau ntau dua ntawm cov kab mob.
2. Lub Sijhawm Tos: Tom qab txhaj tshuaj radiotracer, koj feem ntau tos txog li 30 mus rau 60 feeb kom tso cai rau tus neeg taug qab mus rau hauv lub cev thiab nqus los ntawm cov ntaub so ntswg. Lub sijhawm no, koj yuav raug hais kom so hauv chav tsev ntiag tug, vim tias kev txav mus los tuaj yeem cuam tshuam rau cov txiaj ntsig.
3. Cov txheej txheem scanning: Thaum lub sijhawm tos tiav, koj pw ntawm lub rooj scanning. PET scanner, uas yog lub tshuab loj nrog lub khob noom cookie qhib, yog siv los ntes cov duab. Lub scanner kuaj pom cov hluav taws xob tawm los ntawm tus neeg taug qab thiab tsim cov duab ntxaws ntxaws ntawm thaj chaw uas muaj kev ua haujlwm metabolic siab.
4. Kev txheeb xyuas cov duab: Tom qab kuaj xyuas, tus kws kho hluav taws xob lossis tus kws kho mob nuclear tshuaj xyuas cov duab. Cov duab no qhia tias thaj chaw twg hauv lub cev tau nce kev ua haujlwm metabolic, pab txheeb xyuas qhov txawv txav xws li qog, mob, lossis lwm yam mob.

Vim li cas PET Scan Ua Haujlwm?

PET scan yog siv rau ntau yam laj thawj, tshwj xeeb tshaj yog rau kev kuaj mob thiab tshuaj xyuas cov kab mob uas cuam tshuam rau cov metabolism hauv cov ntaub so ntswg. Nov yog qee qhov laj thawj vim li cas PET scan tuaj yeem ua tiav:

• Kev kuaj mob qog noj ntshav thiab saib xyuas: Ib qho kev siv ntau tshaj plaws ntawm PET scan yog txhawm rau kuaj thiab saib xyuas mob qog noj ntshav. Cov qog nqaij hlav cancer feem ntau yog cov metabolically nquag ua haujlwm ntau dua li cov hlwb ib txwm muaj, yog li PET scan tuaj yeem pab txheeb xyuas cov qog lossis thaj chaw ntawm kev kis mob qog noj ntshav (metastasis). Nws tseem tuaj yeem siv los saib xyuas cov txiaj ntsig ntawm kev kho mob qog noj ntshav, xws li tshuaj kho mob lossis kev kho hluav taws xob.
• Kev ntsuam xyuas mob plawv: PET scans yog siv los ntsuas cov ntshav ntws mus rau lub plawv thiab ntsuas seb cov leeg nqaij hauv lub plawv ua haujlwm zoo li cas. Nyob rau hauv cov xwm txheej ntawm cov hlab ntsha los yog lwm yam mob plawv, PET scans tuaj yeem txheeb xyuas thaj chaw ntawm lub plawv uas tsis tau txais oxygen txaus thiab cov as-ham.
• Tus Mob Neurological: PET scans yog qhov tseem ceeb hauv kev kuaj mob thiab saib xyuas cov kab mob hauv lub paj hlwb xws li Alzheimer's disease, Parkinson's disease, thiab qaug dab peg. Cov xwm txheej no tuaj yeem ua rau muaj kev hloov pauv hauv lub hlwb metabolism, uas tuaj yeem kuaj pom los ntawm PET scan, txawm tias ua ntej cov tsos mob tshwm sim.
• Kab mob thiab kab mob: PET scans yog siv los kuaj xyuas thaj chaw muaj kab mob los yog mob, tshwj xeeb tshaj yog nyob rau hauv cov pob txha kab mob (osteomyelitis) los yog cov ntaub so ntswg mos. Kev ua haujlwm metabolic ntau ntxiv hauv cov cheeb tsam no tuaj yeem kuaj pom nrog kev luam theej duab.
• Kev Npaj Ua Ntej Kev phais: Rau cov neeg mob uas raug kev phais, tshwj xeeb tshaj yog kev phais mob hlwb lossis lub plawv, PET scan yuav raug siv los txheeb xyuas cov chaw uas yuav tsum tau ua tib zoo saib xyuas thaum lub sijhawm ua haujlwm, kom ntseeg tau tias qhov kev phais zoo li zoo thiab meej npaum li qhov ua tau.
• Kev soj ntsuam kev kho mob nce qib: PET scans feem ntau yog siv los saib xyuas qhov kev kho mob zoo li cas, tshwj xeeb hauv kev kho mob qog noj ntshav. Los ntawm kev sib piv cov tshuaj ntsuam xyuas ua ntej thiab tom qab kev kho mob, cov kws kho mob tuaj yeem txiav txim siab seb cov qog puas yuav txo qis los yog xav tau kev kho mob ntxiv.

Yuav Ua Li Cas Npaj Rau PET Scan

Kev npaj rau PET scan feem ntau yog yooj yim, tab sis muaj ob peb cov lus qhia tseem ceeb uas yuav tsum tau ua kom ntseeg tau tias cov txheej txheem ua tau zoo thiab cov txiaj ntsig tau raug raws li qhov ua tau:

• Kev yoo mov: Feem ntau koj yuav raug nug kom yoo mov rau 4 mus rau 6 teev ua ntej qhov scan. Qhov no yuav pab xyuas kom meej tias cov piam thaj hauv koj lub cev ruaj khov thiab cov radiotracer yuav raug nqus los ntawm koj cov ntaub so ntswg kom raug. Koj yuav raug tso cai haus dej, tab sis koj yuav tsum tsis txhob noj lossis haus ib yam dab tsi uas muaj calories.
• Kev zam tej yam tshuaj: Qee cov tshuaj, tshwj xeeb tshaj yog cov uas cuam tshuam rau koj cov ntshav qab zib lossis kev ua haujlwm metabolic (xws li insulin lossis qee yam tshuaj rau ntshav qab zib), tuaj yeem cuam tshuam nrog kev kuaj ntshav. Nco ntsoov qhia koj tus kws kho mob txog txhua yam tshuaj uas koj noj.
• Zam kev tawm dag zog: Hauv 24 teev ua ntej qhov scan, koj yuav tsum tsis txhob muaj kev tawm dag zog lub cev. Kev tawm dag zog tuaj yeem ua rau cov leeg nqus cov piam thaj ntau dua, uas cuam tshuam rau cov txiaj ntsig scan.
• Kev co: Thaum yoo mov los ntawm cov zaub mov, nws tseem ceeb heev kom haus dej kom ntau ua ntej qhov kev ntsuam xyuas kom paub tseeb tias koj muaj dej txaus. Qhov no yuav pab kom muaj kev sib raug zoo ntawm radiotracer.
• Khaub ncaws: Koj yuav tsum hnav khaub ncaws zoo yam tsis muaj hlau zippers, nyees khawm, lossis fasteners, vim tias cov no tuaj yeem cuam tshuam nrog kev scan. Tej zaum koj yuav raug hais kom hloov mus rau hauv tsev kho mob hnav khaub ncaws ua ntej tus txheej txheem.
• Qhia rau koj tus kws kho mob txog kev mob nkeeg: Yog tias koj cev xeeb tub los yog pub niam mis, qhia rau koj tus kws kho mob paub ua ntej kuaj. Txawm hais tias qhov hluav taws xob raug hluav taws xob hauv PET scan yog tsawg, nws feem ntau zam thaum cev xeeb tub tshwj tsis yog qhov tsim nyog kiag li.

Yuav Ua Li Cas Thaum PET Scan

PET scan yog qhov tsis mob, tsis muaj kev cuam tshuam, txawm hais tias koj tuaj yeem ntsib qee qhov tsis xis nyob thaum lub sijhawm ua haujlwm. Nov yog yam uas yuav xav tau thaum lub scan:

1. Kev txhaj tshuaj ntawm Radiotracer: Ib rab koob IV me me yuav muab tso rau hauv koj cov hlab ntsha los tswj cov xov tooj cua. Kev txhaj tshuaj feem ntau yog nrawm, txawm tias qee tus neeg yuav hnov ​​​​mob me ntsis ntawm qhov txias txias lossis tsis xis nyob thaum tus kab mob raug txhaj.
2. Lub Sijhawm Tos: Tom qab txhaj tshuaj, koj yuav raug hais kom tos 30 mus rau 60 feeb thaum lub xov tooj cua yog nqus los ntawm koj cov ntaub so ntswg. Lub sijhawm no, koj yuav tsum nyob twj ywm thiab so kom txaus li sai tau.
3. Positioning rau Scan: Thaum lub sijhawm tos dhau lawm, koj yuav pw ntawm lub rooj scanning. PET scanner yog lub tshuab ua khob noom cookie loj. Koj yuav raug hais kom nyob twj ywm thaum lub tshuab ntes cov duab ntawm koj lub cev.
4. Txheej txheem duab: PET scan feem ntau kav li 20 mus rau 45 feeb. Tej zaum koj yuav raug hais kom tuav koj cov pa luv luv ntawm qee cov ntsiab lus kom tsis txhob muaj kev txav uas tuaj yeem ua rau cov duab tsis pom. CT ib feem ntawm qhov scan yuav siv sij hawm ob peb feeb xwb.
5. Post-Scan: Tom qab qhov scan, koj tuaj yeem rov pib ua haujlwm li qub. Lub radiotracer yuav raug tshem tawm ntawm koj lub cev los ntawm cov zis, yog li nws yog lub tswv yim zoo kom haus cov kua dej ntau tom qab kuaj.

Txhais cov txiaj ntsig ntawm PET Scan

Cov txiaj ntsig ntawm PET scan yog txhais los ntawm kws kho hluav taws xob lossis kws kho mob nuclear. Cov duab tsim los ntawm kev luam theej duab yuav pom cov cheeb tsam ntawm kev ua haujlwm metabolic siab, uas yuav qhia tau tias muaj kev txawv txav. Nov yog qhov koj tuaj yeem xav tau los ntawm kev txhais cov txiaj ntsig ntawm PET scan:

• Cov txiaj ntsig qub: Hauv ib tus neeg muaj kev noj qab haus huv, PET scan yuav tsum ua kom pom qhov ua tau zoo, ua haujlwm metabolic hauv lub cev thiab cov ntaub so ntswg. Tsis muaj qhov chaw ntawm qhov txawv txav yuav tshwm sim, thiab lub cev yuav tsum tshwm sim raws li qhov xav tau.
• Cov txiaj ntsig txawv txav:
  • Cancer: Cov qog nqaij hlav qog noj ntshav yuav haus cov piam thaj ntau dua li cov hlwb ib txwm muaj, yog li thaj chaw ntawm kev ua haujlwm metabolic (qhov kub kub) tuaj yeem qhia tias muaj cov qog. PET scans tuaj yeem pab txiav txim qhov loj thiab qhov chaw ntawm cov qog, thiab seb puas mob qog noj ntshav (metastasized) mus rau lwm qhov chaw.
  • Kab Mob Plawv: Cov cheeb tsam ntawm lub plawv nrog cov ntshav tsis txaus tuaj yeem ua rau txo qis kev ua haujlwm metabolic. PET scans tuaj yeem pab txheeb xyuas thaj tsam ntawm ischemia (tsis muaj ntshav txaus) lossis kev puas tsuaj los ntawm lub plawv nres dhau los.
  • Neurological Disorders: Hauv cov xwm txheej zoo li Alzheimer's kab mob, Parkinson's disease, lossis qaug dab peg, PET scans tuaj yeem nthuav tawm cov qauv txawv txav ntawm lub hlwb metabolism, pab cov kws kho mob kuaj xyuas thiab saib xyuas kev mob ntawm cov kab mob no.
  • Kab mob los yog Inflamation: PET scans tuaj yeem kuaj pom cov kab mob lossis mob, xws li abscesses, osteomyelitis (mob pob txha), lossis kab mob plab hnyuv.
• Kev ntsuam xyuas tom qab: Yog tias pom qhov tshwm sim txawv txav, koj tus kws kho mob yuav pom zoo kom kuaj ntxiv lossis kuaj biopsy kom paub meej qhov kev kuaj mob. PET scans feem ntau siv nrog rau lwm txoj hauv kev, xws li CT lossis MRI, kom tau txais daim duab tiav ntawm qhov xwm txheej.

Kev pheej hmoo thiab teeb meem ntawm PET Scan

Thaum PET scans feem ntau muaj kev nyab xeeb, muaj qee qhov kev pheej hmoo thiab kev txiav txim siab:

• Radiation Exposure: Txawm hais tias tus nqi hluav taws xob hauv PET scan yog qhov tsawg, nws tseem yog ib hom hluav taws xob ionizing. Kev raug hluav taws xob los ntawm ib qho scan feem ntau suav tias muaj kev nyab xeeb rau cov tib neeg feem ntau, tab sis nws yog ib qho tseem ceeb kom tsis txhob muaj cov tshuaj ntsuam xyuas, tshwj xeeb tshaj yog thaum cev xeeb tub.
• Kev tsis haum: Txawm hais tias tsis tshua muaj, qee tus neeg yuav muaj kev tsis haum rau lub xov tooj cua. Cov tsos mob yuav muaj xws li pob khaus, khaus, lossis o. Nco ntsoov qhia rau koj tus kws kho mob yog tias koj muaj kev fab tshuaj.
• Claustrophobia: Qee tus neeg yuav ntsib kev ntxhov siab lossis claustrophobia hauv PET scanner, uas yog lub tshuab kaw. Yog tias koj ntshai, qhia koj tus kws kho mob ua ntej, vim tias tej zaum yuav muaj txoj hauv kev los pab koj tswj cov kev xav no.

Tus neeg mob FAQs Txog PET Scan

• PET scan yog dab tsi, thiab vim li cas nws thiaj ua tiav?

  PET scan yog ib txoj hauv kev siv los saib xyuas cov haujlwm metabolic ntawm lub cev thiab cov ntaub so ntswg hauv lub cev. Nws yog feem ntau siv rau kev kuaj mob qog noj ntshav, kab mob plawv, thiab mob hlwb, nrog rau kev saib xyuas kev kho mob.

• PET scan yuav siv sijhawm ntev npaum li cas?

  Cov txheej txheem duab tiag tiag yuav siv li 20 mus rau 45 feeb. Txawm li cas los xij, tag nrho cov txheej txheem, suav nrog kev npaj thiab tos lub sijhawm rau lub xov tooj cua kom nqus tau, yuav siv sijhawm li 90 feeb.

• Cov txheej txheem PET puas raug mob?

  PET scan nws tus kheej tsis mob. Qee qhov tsis xis nyob yuav tshwm sim thaum txhaj tshuaj radiotracer, tab sis qhov no feem ntau yog me me. Lub scan tsis yog invasive thiab tsis cuam tshuam qhov mob.

• Kuv yuav npaj li cas rau kev kuaj PET?

  Koj yuav tsum tau yoo mov rau 4 mus rau 6 teev ua ntej scan, zam kev tawm dag zog 24 teev ua ntej, thiab qhia rau koj tus kws kho mob txog cov tshuaj koj noj, tshwj xeeb tshaj yog cov uas cuam tshuam rau cov metabolism hauv qabzib.

• Puas yog PET scan muaj kev nyab xeeb?

  Yog lawm, PET scans feem ntau muaj kev nyab xeeb, txawm hais tias lawv cuam tshuam nrog cov hluav taws xob me me. Cov txiaj ntsig ntawm kev kuaj mob kom raug thiab saib xyuas cov xwm txheej zoo li mob qog noj ntshav lossis kab mob plawv tshaj qhov txaus ntshai rau tib neeg feem coob.

• Kev kuaj PET puas tuaj yeem kuaj pom txhua yam mob qog noj ntshav?

  Thaum PET scans muaj txiaj ntsig zoo ntawm kev kuaj pom ntau hom mob qog noj ntshav, lawv yuav tsis pom txhua yam, tshwj xeeb tshaj yog tias mob qog noj ntshav tsis qhia txog kev ua haujlwm metabolic. Lwm yam kev ntsuam xyuas cov duab yuav raug siv los ua kom tiav PET scan.

• Yuav ua li cas yog PET scan?

  PET scans yog qhov tseeb heev rau kev kuaj xyuas thiab saib xyuas cov xwm txheej zoo li mob qog noj ntshav, kab mob plawv, thiab mob hlwb. Txawm li cas los xij, cov txiaj ntsig tsis zoo lossis tsis muaj qhov tsis zoo tuaj yeem tshwm sim, yog li PET scans feem ntau siv nrog rau lwm yam kev sim.

• Kuv puas tuaj yeem noj lossis haus ua ntej PET scan?

  Koj yuav tsum tsis txhob noj lossis haus dej li 4 mus rau 6 teev ua ntej kuaj. Kev haus dej feem ntau yog tso cai, tab sis koj yuav tsum tsis txhob haus dej qab zib lossis caffeine vim lawv tuaj yeem cuam tshuam nrog cov txiaj ntsig kev xeem.

• Yuav ua li cas tom qab PET scan?

  Tom qab qhov scan, koj tuaj yeem rov pib ua haujlwm li qub. Lub radiotracer yuav tawm hauv koj lub cev mus rau lub sijhawm, yog li nws tau qhia kom haus dej kom ntau los pab tshem tawm.

• Nws yuav siv sijhawm ntev npaum li cas thiaj li tau txais cov txiaj ntsig ntawm PET scan?

  Cov txiaj ntsig feem ntau muaj nyob rau hauv 24 mus rau 48 teev, tom qab kws kho mob radiologist tau txheeb xyuas cov duab thiab xa daim ntawv tshaj tawm mus rau koj tus kws kho mob.

xaus

PET scan yog ib qho cuab yeej kuaj xyuas muaj txiaj ntsig uas muaj cov ncauj lus kom ntxaws txog cov metabolism thiab ua haujlwm ntawm cov ntaub so ntswg thiab cov kabmob hauv lub cev. Nws lub peev xwm los kuaj xyuas cov mob xws li mob qog noj ntshav, kab mob plawv, thiab cov kab mob paj hlwb ua rau nws yog ib feem tseem ceeb ntawm cov tshuaj niaj hnub. Kev nkag siab txog cov txheej txheem, yuav npaj li cas, thiab txhais cov txiaj ntsig tau li cas tuaj yeem pab daws txhua qhov kev txhawj xeeb thiab xyuas kom koj paub meej. Nco ntsoov sab laj nrog koj tus kws kho mob yog tias koj muaj lus nug lossis kev txhawj xeeb txog tus txheej txheem PET scan.