Dab tsi yog qhov kho qhov muag coherence tomography ntawm lub qhov muag?

Cov txheej txheem:

Dab tsi yog qhov kho qhov muag coherence tomography ntawm lub qhov muag?
Dab tsi yog qhov kho qhov muag coherence tomography ntawm lub qhov muag?

Video: Dab tsi yog qhov kho qhov muag coherence tomography ntawm lub qhov muag?

Video: Dab tsi yog qhov kho qhov muag coherence tomography ntawm lub qhov muag?
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Anonim

Optical coherence tomography yog ib txoj hauv kev uas tsis cuam tshuam (tsis sib cuag) rau kev kawm txog cov qauv ntawm lub qhov muag. Nws tso cai rau koj kom tau txais cov duab daws teeb meem siab dua piv rau cov txiaj ntsig ntawm cov txheej txheem ultrasound. Qhov tseeb, optical coherence tomography ntawm lub qhov muag yog ib hom biopsy, tsuas yog rau thawj tus tsis tas yuav siv cov ntaub so ntswg.

optical coherence tomography
optical coherence tomography

A Brief History

Lub tswv yim tom qab niaj hnub kho qhov muag sib txuas tomography tau tsim los ntawm cov kws tshawb fawb ntawm Massachusetts Institute of Technology rov qab rau xyoo 1980s. Nyob rau hauv lem, lub tswv yim ntawm kev taw qhia ib tug tshiab txoj cai rau ophthalmology tau npaj nyob rau hauv 1995 los ntawm American kws tshawb fawb Carmen Pouliafito. Ob peb xyoos tom qab ntawd, Carl Zeiss Meditec tau tsim cov cuab yeej kom phim, uas yog hu ua Stratus OCT.

Tam sim no, nrog kev pab los ntawm cov qauv tshiab, nws tuaj yeem tsis tsuas yog kawm cov ntaub so ntswg ntawm lub qhov muag xwb, tab sis kuj tseem muaj kev sib txuas ntawm optical coherence tomography ntawm cov hlab ntsha coronary, cov hlab ntsha ntawm cov hlab ntsha ntawm lub microscopic.

optical coherence tomography ntawm lub qhov muag
optical coherence tomography ntawm lub qhov muag

cov ntsiab lus tshawb fawb

Optical coherence tomography muaj nyob rau hauv kev tsim cov duab nraaj raws li kev ntsuas ntawm lub sijhawm ncua thaum lub teeb pom kev zoo los ntawm cov ntaub so ntswg hauv kev kawm. Lub ntsiab tseem ceeb ntawm cov khoom siv ntawm pawg no yog superluminescent diode, kev siv uas ua rau nws muaj peev xwm tsim cov kab teeb ci ntawm qhov tsis sib xws. Hauv lwm lo lus, thaum lub cuab yeej qhib, lub teeb hluav taws xob tau muab faib ua ob peb ntu. Ib lub kwj deg yog coj mus rau thaj tsam ntawm cov ntaub so ntswg kawm, lwm qhov - mus rau ib daim iav tshwj xeeb.

Rays reflected los ntawm cov khoom yog summed. Tom qab ntawd, cov ntaub ntawv raug kaw los ntawm ib qho tshwj xeeb photodetector. Cov ntaub ntawv tsim tawm ntawm daim duab tso cai rau tus kws kuaj mob kos cov lus xaus txog qhov kev xav ntawm tus kheej cov ntsiab lus ntawm cov khoom hauv kev kawm. Thaum ntsuas cov ntaub so ntswg tom ntej, kev txhawb nqa tau tsiv mus rau lwm txoj haujlwm.

Optical coherence tomography ntawm retina ua rau nws muaj peev xwm tsim cov duab ntawm lub computer saib uas muaj ntau txoj hauv kev zoo ib yam li cov txiaj ntsig ntawm kev kuaj ultrasound.

optical coherence tomography ntawm retina
optical coherence tomography ntawm retina

Qhia rau tus txheej txheem

Hnub no, kho qhov muag pom kev tomography tau pom zoo rau kev kuaj mob xws li:

  • Glaucoma.
  • Macular ntaub so ntswg.
  • thrombosis ntawm txoj kev ncig ntawm retina.
  • YDiabetic retinopathy.
  • cov txheej txheem degenerative hauv cov qauv ntawm cov ntaub so ntswg.
  • YCystoido.
  • Anomalies hauv kev ua haujlwm ntawm lub paj hlwb.

Tsis tas li ntawd, kho qhov muag coherence tomography ntawm cov hlab ntsha ntawm lub paj hlwb raug sau los ntsuas qhov ua tau zoo ntawm cov txheej txheem kho mob siv. Tshwj xeeb, txoj kev tshawb fawb no yog qhov tseem ceeb hauv kev txiav txim siab qhov zoo ntawm kev teeb tsa ntawm cov twj tso kua dej uas ua ke rau hauv cov ntaub so ntswg ntawm qhov muag hauv glaucoma.

optical coherence tomography ntawm lub paj hlwb
optical coherence tomography ntawm lub paj hlwb

Txoj kev kuaj mob

Optical coherence tomography suav nrog kev tsom mus rau qhov kev pom ntawm cov cim tshwj xeeb. Nyob rau hauv cov ntaub ntawv no, tus neeg teb xov tooj ntawm cov cuab yeej ua ib tug xov tooj ntawm sequential ntaub so ntswg scans.

Ua kom nyuaj rau kev kawm thiab tiv thaiv kev kuaj mob zoo muaj peev xwm ntawm cov txheej txheem pathological xws li corneal edema, profuse hemorrhages, txhua yam opacities.

Cov txiaj ntsig ntawm coherence tomography yog tsim los ntawm cov txheej txheem uas qhia rau tus kws tshawb fawb txog lub xeev ntawm qee qhov chaw ntawm cov nqaij mos ntawm qhov muag thiab qhov ntau. Txij li cov ntaub ntawv tau txais raug kaw rau hauv lub cim xeeb ntawm lub cuab yeej, lawv tuaj yeem siv los sib piv lub xeev ntawm cov ntaub so ntswg ua ntej pib kho thiab tom qab siv cov kev kho mob.

3D rendering

Niaj hnub nimno kho qhov muag coherence tomography ua rau nws tuaj yeem tau txais tsis tau tsuas yog ob-seem graphs, tab sis kuj los tsim peb-dimensional visualization ntawm cov khoom hauv kev kawm. Kev txheeb xyuas cov ntaub so ntswg ntawm kev kub ceev tso cai rau koj los tsim ib qhontau tshaj 50,000 cov duab ntawm cov khoom kuaj mob. Raws li cov ntaub ntawv tau txais, software tshwj xeeb rov tsim cov qauv peb-dimensional ntawm cov khoom ntawm lub monitor.

Cov duab 3D tsim tawm yog lub hauv paus rau kev kawm sab hauv topography ntawm cov ntaub so ntswg qhov muag. Yog li, nws tuaj yeem txiav txim siab thaj tsam meej ntawm cov kab mob neoplasms, nrog rau txhim kho cov kev hloov pauv ntawm lawv cov kev hloov pauv raws sijhawm.

ua ib qho optical coherence tomography
ua ib qho optical coherence tomography

Qhov zoo ntawm coherence tomography

Cov cuab yeej tomography zoo tshaj plaws hauv kev kuaj mob glaucoma. Nyob rau hauv rooj plaub ntawm kev siv cov cuab yeej ntawm pawg no, cov kws tshaj lij tau txais lub sijhawm los txiav txim siab nrog qhov tseeb ntawm cov xwm txheej hauv kev txhim kho pathology nyob rau theem pib, txhawm rau txheeb xyuas qhov kev loj hlob ntawm tus kab mob.

Txoj kev tshawb fawb yog qhov tseem ceeb hauv kev kuaj mob xws li cov kab mob sib kis ntawm cov ntaub so ntswg, uas, vim muaj hnub nyoog ntawm cov yam ntxwv ntawm lub cev, tus neeg mob pib pom qhov chaw dub nyob hauv nruab nrab. ntawm qhov muag.

Coherence tomography yog siv nrog rau lwm cov txheej txheem kuaj mob, xws li fluorescein angiography ntawm lub retina. Los ntawm kev sib txuas cov txheej txheem, tus kws tshawb fawb tau txais cov ntaub ntawv tseem ceeb tshwj xeeb uas ua rau muaj kev kuaj mob kom raug, kev txiav txim siab ntawm qhov nyuaj ntawm pathology thiab kev xaiv kev kho mob zoo.

Kuv tuaj yeem tau txais qhov kho qhov muag pom kev tomography nyob qhov twg?

Cov txheej txheem tsuas yog ua tau yog tias muaj kev tshwj xeebOCT khoom. Kev kuaj mob ntawm cov phiaj xwm no tuaj yeem siv rau hauv cov chaw tshawb fawb niaj hnub no. Feem ntau, cov chav kho qhov muag thiab cov chaw kho mob ntiag tug muaj cov khoom siv zoo li no.

optical coherence tomography ntawm cov hlab ntsha coronary
optical coherence tomography ntawm cov hlab ntsha coronary

Nqe

Kev ua kom pom kev sib raug zoo tomography tsis tas yuav muaj kev xa mus los ntawm tus kws kho mob tuaj koom, tab sis txawm tias muaj ib qho, kev kuaj mob yuav raug them tas li. Tus nqi ntawm txoj kev tshawb no txiav txim qhov xwm ntawm pathology, uas yog tsom rau kev txheeb xyuas qhov kev kuaj mob. Piv txwv li, kev txiav txim siab ntawm macular ruptures yog kwv yees li ntawm 600-700 rubles. Thaum tomography ntawm cov ntaub so ntswg ntawm lub qhov muag sab nrauv tuaj yeem raug nqi rau tus neeg mob ntawm qhov chaw kuaj mob 800 rubles lossis ntau dua.

Raws li kev tshawb fawb dav dav tsom rau kev ntsuas kev ua haujlwm ntawm cov hlab ntsha ntawm lub paj hlwb, lub xeev ntawm cov retinal fibers, tsim cov qauv peb sab ntawm lub cev pom, tus nqi rau cov kev pabcuam niaj hnub no pib los ntawm 1800 rubles.

Pom zoo: