Kuyini optical ukuhambisana kwemicabango njengemisho tomography amehlo?

Optical ukuhambisana kwemicabango njengemisho tomography - a non-koda (non-contact) indlela ukutadisha isakhiwo ijwabu. It ikuvumela ukuba awuthathe izithombe okucace kakhulu uma iqhathaniswa imiphumela izinqubo ultrasound. Eqinisweni, i-optical ukuhambisana kwemicabango njengemisho tomography esweni uhlobo biopsy, kuphela asikho isidingo lokuqala kocingo isampula izicubu.

Umlando omfishane

Umqondo lapho kwenziwa yesimanje ukuhambisana kwemicabango njengemisho optical tomography, akhiwa abacwaningi -Massachusetts Institute of Technology e ezikude 1980. Ngakwelinye ihlangothi, umbono ukwethula isimiso esisha zamehlo kwahlongozwa ngo-1995 usosayensi American uCarmen Puliafito. Eminyakeni embalwa kamuva, inkampani Carl Zeiss Meditec isungule ithuluzi elifanele, ebizwa ngokuthi Stratus OCT.

Okwamanje, nge imodeli yakamuva awukwazi kuphela ukufunda nezicubu ngwengwzi, kodwa futhi optical ukuhambisana kwemicabango njengemisho tomography kwemithambo yegazi i-coronary, emsipheni optic nasezintweni ezincane kakhulu.

izimiso ucwaningo

Optical ukuhambisana kwemicabango njengemisho tomography iwukuba yakha izithombe ingcaca ngesisekelo nesilinganiso ukubambezeleka isikhathi ugongolo ukukhanya ezicutshini zomzimba wafunda. I element eziyisisekelo kulesi sigaba amadivayisi izenzo superluminescent diode, ukusetshenziswa elenza kukwazeke ukwakha ongaphakeme ukuhambisana kwemicabango njengemisho ukukhanya imishayo. Ngamanye amazwi, lapho isebenze icala electron ugongolo apharathasi ihlukaniswe yaba izingxenye eziningana. Omunye ekusakazeni siqondiswe ifundelwe ukwakheka kwezicubu, elinye - ukuba esibukweni ekhethekile.

Rays kubonakala kusukela into kuthiwa wafingqa. Ngemva kwalokho, idatha kulotshwe photodetector ekhethekile. Kwakheka ulwazi schedule ivumela diagnostician sifinyelela iziphetho mayelana reflectivity ezindaweni ezithile into iphenywe. Lapho ingxenye elandelayo ekuhloleni izicubu lokuxhasa wathuthela kwesinye isikhundla.

Optical ukuhambisana kwemicabango njengemisho tomography retina kwenza kube nokwenzeka ukukhiqiza ihluzo kuyi-computer, okuyinto ngezindlela eziningi zifana imiphumela luhlolo ultrasound.

Izinkomba inqubo

Namuhla, ukwenza optical ukuhambisana kwemicabango njengemisho tomography Kunconywa sitholakele pathologies ezifana:

• I-glaucoma.
• Macular izicubu uyadabuka.
• Thrombosis ngwengwzi igazi izindlela.
• retinopathy sikashukela.
• izinqubo esiwohlozayo e isakhiwo ijwabu.
• edema Cystoid.
• Anomalies ekusebenzeni emsipheni optic.

Ngaphezu kwalokho, i-optical ukuhambisana kwemicabango njengemisho tomography we emsipheni optic inikezwa ukuhlola kusebenta ukwelashwa zokwelapha ezisetshenziswa. Ikakhulukazi, indlela yocwaningo ukhonza esisemqoka ekunqumeni izinga ukufakwa zedivayisi amanzi, okuyinto kuhlanganiswe ijwabu e-glaucoma.

Izici ukuhlola

Optical ukuhambisana kwemicabango njengemisho tomography tesifundvo kuhilela ukugxila izimpawu ezikhethekile. Ngakho-opharetha zedivayisi senziwa eziningi ezilandelanayo amaskeni kwezicubu.

Kakhulu ziphazamise ucwaningo nokuhlola kungathiya izinqubo eziphumelelayo sokugembula ezifana ukuvuvukala cornea, ukopha kakhulu, opacities ezahlukene.

Ezenye ukuhambisana kwemicabango njengemisho tomography akhiwa ngesimo yezifiso ukuthi wazise abacwaningi mayelana nesimo izingxenye ezithile izicubu ku ezibukwayo kanye nemigomo ambalwa. Kusukela idatha ezilotshwe inkumbulo, bona kamuva ingase isetshenziselwe ukuqhathanisa isimo izicubu ngaphambi ukwelashwa kanye emva kokwelashwa zokwelapha.

ngeso Three-ntathu

Modern ukuhambisana kwemicabango njengemisho optical tomography kwenza kube nokwenzeka ukuba athole hhayi kuphela ihluzo mgudumbili, kodwa futhi ukukhiqiza ngeso ezintathu-ntathu of izinto. Iskena izicubu izigaba ngesivinini ivumela imizuzwana embalwa ukwakha 50,000 izithombe impahla sitholakale. Ngesisekelo Imininingwane wathola isofthiwe ekhethekile izalana qapha isakhiwo ngakuthathu into.

I elakhiwe 3D-image isisekelo ekutadisheni sendawo we kwangaphakathi iso kwezicubu. Ngakho, kuba nokwenzeka ukuchaza imingcele ecacile izilonda sokugembula, kanye kokungathembeki we Dynamics izinguquko zabo ngesikhathi.

Izinzuzo ukuhambisana kwemicabango njengemisho tomography

I-apharathasi ephumelela kunazo sokufeza tomography anokuhambisana khombisa sitholakele glaucoma. Endabeni izimoto kwalesi sigaba Ochwepheshe bayakwazi ukunquma ngokunembile izici zokugula okwakuhlalwa kuzo lapho kusaqalwa, ukukhomba sezingeni ukuqhubeka kwesifo.

Indlela ucwaningo lubaluleke sitholakele nezifo kangaka, ezifana ukonakala macular kwezicubu, lapho ngenxa izici yobudala umzimba lesiguli eqala ukubona ibala elimnyama maphakathi iso.

Tomography ngalokubumbene ngempumelelo ngokuhlanganyela nezinye izindlela zokuxilonga, ezifana angiography, i-retina fluorescence indlela. Ngokuhlanganisa izinqubo umcwaningi uthola idatha ezibalulekile ikakhulukazi enesandla okuyikona, yencazelo yezimo zezulu eziyinkimbinkimbi nokushintshashintsha isifo kanye ukukhethwa ukwelashwa okuphumelelayo.

Lapho ongenza optical ukuhambisana kwemicabango njengemisho tomography?

Kuphethe inqubo kungenzeka kuphela uma kukhona iyunithi ezikhethekile OCT. Ukuze sitholakele plan onjalo, ungakwazi iphendukele izikhungo nocwaningo lwanamuhla. Ngokuvamile, lolu hlobo imishini has a Amahhovisi ukulungiswa umbono, umtholampilo ophthalmologic yangasese.

intengo udaba

Ethwele ukuhambisana kwemicabango njengemisho tomography kudinga kokuqondisa udokotela ukuba khona, kodwa ngisho noma yimuphi uphethwe iyohlale ikhokhwe. Izindleko cwaningo inquma ubunjalo zokugula ukuhlonza elifuna ukuhlola. Ngokwesibonelo, incazelo macular izicubu amakhefu balinganiselwa ku ruble 600-700. Njengoba ephethe ingxenye anterior we imaging ijwabu kungadla isikhungo nesineke zokuxilonga ruble 800 nokuningi.

Ngokuqondene izifundo ehlangene okuhloswe ngaso ekuhloleni ukusebenza emsipheni optic, isimo Imicu yotshani ngwengwzi ukwakha imodeli unhlangothi-ntathu isitho ezibukwayo, intengo amasevisi afana namuhla uqala ruble 1800.