Luluphi uPhuhliso lwakutsha nje kuMfanekiso wezoNyango?

Ukususela kwiminyaka yee-1960 ukuya kweyee-1980, iMagnetic Resonance Imaging (MRI), i-computerized tomography (CT) scans, nepositron emission tomography (PET) scans ziye zahambela phambili kakhulu. Ezi zixhobo ze-imaging zonyango ezingabonakaliyo ziye zaqhubeka nokuguquka kunye nokuhlanganiswa kobukrelekrele bokufakelwa (AI), iindlela eziphuculweyo zokuqokelela idatha eluhlaza, kunye nohlalutyo lwezibalo ezininzi zeparametric, zonke ezinegalelo ekuqondeni okuphuculweyo kunye nohlalutyo lweenkqubo zethu zangaphakathi.

Ukuphuculwa kwe-PET kunye ne-CT scans

Uvavanyo oluqhelekileyo lwePET scan ludla ngokufuna phakathi kwemizuzu engama-45 kunye neyure ukuze lugqitywe yaye lunokuvelisa imifanekiso eyahlukileyo yokukhula kwethumba ebuchotsheni, emiphungeni, kumlomo wesibeleko nakweminye imimandla yomzimba. Inkqubela phambili eqhubekayo iphucule ukusebenza kwale ndlela, ibandakanya isoftware yokulungiswa kwe-blur motion kunye nokwenza uvavanyo lwe-algorithmic ukulindela indawo yobunzima ngaphakathi kwezicubu ezihambayo.

Ukufiphala kweMotion kwenzeka xa icandelo ekujoliswe kulo lihamba ngexesha lokuthathwa komfanekiso we-PET, okwenza kube nzima kakhulu ukuvavanya nokuhlalutya ubunzima okanye izicubu. Ukunciphisa intshukumo ngexesha lokuskena i-PET, iingcali zezempilo zisebenzisa i-gated ukuthenga, ukwahlula umjikelo wokuskena ube "yimigqomo" emininzi. Ngokwahlula inkqubo yokuskena kwi-8-10 imigqomo, inkqubo inokulindela indawo yobunzima obujoliswe kuyo ngexesha elithile okanye kwindawo ethile, ngokusekelwe kukhetho lomsebenzisi. Olu qikelelo lwenziwa ngokuqikelela indawo yobunzima phakathi kwemigqomo yomntu ngamnye yomjikelo. Inkqubo yokucinga ngesango ye-PET inciphisa ngokufanelekileyo ukungahambi kakuhle kwentshukumo kwisixhobo, okukhokelela ekuphuculweni koxinzelelo lomsebenzi/ixabiso lohlaziyo olusemgangathweni (SUV). Xa idatha ye-PET ihambelana nedatha ye-CT, yonke le nkqubo yaziwa ngokuba yi-4D CT scanning.

Nangona kunjalo, kukho umda owaziwayo onxulumene nale nkqubo. Ukusebenzisa iindlela ezivaliweyo zokufumana umfanekiso kubangela ingxolo eyandisiweyo ngenxa yokufunyanwa kwedatha enkulu kakhulu. Izicwangciso ezininzi zokujongana nalo mbandela ziquka i-Q-freeze, i-Oncofreeze, kunye nexesha lokuhamba ngendiza (ToF).

Ilungiswa njani imfiliba yomfanekiso kwi-PET kunye ne-CT scan

Ukulungiswa komfanekiso okusekwe kwi-Q, kusetyenziswa ukufunyanwa kwesango, kubandakanya ukuqokelelwa kunye nokubhaliswa kwayo yonke imifanekiso eyenziweyo. Olu bhaliso lwenzeka ngaphakathi kwendawo yomfanekiso, ukuqokelela kunye nokuvuselela yonke idatha eluhlaza efunyenwe kwi-PET scan ukuvelisa umfanekiso wokugqibela kunye nengxolo encitshisiweyo kunye ne-blur.

I-OncoFreeze, ubuchule besoftware yesipili, ihambelana nokukhenkcisa kwe-Q ngandlela thile, nangona yahlukile iyonke. Ukulungiswa kwentshukumo kwenziwa kwindawo ye-sinogram (isithuba sedatha eluhlaza). Emva kokufumana umfanekiso wokuqala, imifanekiso elandelayo emfiliba iqikelelwa phambili kwaye ithelekiswa nebhentshi yomsebenzi wotyando eqikelelweyo kunye ne-backproject sinogram ratios. Oku kukhokelela kumfanekiso ohlaziyiweyo wokugqibela osekwe kumfanekiso wokulungisa owenziwe luzizi.

Ukubamba amaza okuphefumla ngexesha le-PET scans kudityaniswe ne-CT scans kunokukhokelela kumgangatho womfanekiso ophuculweyo. Ukulungelelaniswa okuphuculweyo kunokuzekeliswa ngokulungelelanisa amaza e-PET scans, indlela eqhelekileyo, kunye ne-waveforms ye-CT scans, indlela esandul' ukuveliswa.

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Njengoko sonke siyazi, ukuphuhliswa kwemboni yezobuchwephesha zonyango ayinakuhlukaniswa nokuphuhliswa koluhlu lwezixhobo zonyango - ii-injection ze-agent echaseneyo kunye nezinto ezixhasayo - ezisetyenziswa kakhulu kule ndawo. E-China, edume ngoshishino lwayo lokuvelisa, baninzi abavelisi abadumileyo ekhaya nakwamanye amazwe ngokuveliswa kwezixhobo zonyango zonyango, kuquka.LnkMed. Ukusukela ekusekweni kwayo, i-LnkMed ibigxile kwintsimi yee-ejenti zokuchasa ngoxinzelelo oluphezulu. Iqela lobunjineli be-LnkMed likhokelwa yi-Ph.D. uneminyaka engaphezu kweshumi yamava kwaye uzibandakanye nzulu kuphando nophuhliso. Phantsi kokhokelo lwakhe, iCT isitofu sentloko enye, CT isitofu sentloko kabini, Isitofu se-agent ye-MRI yokuchasana, kwayeI-Angiography yoxinzelelo oluphezulu lwe-ejenti yokuchasaziyilwe ngezi mpawu: umzimba owomeleleyo noxineneyo, ujongano olufanelekileyo nolukrelekrele lokusebenza, imisebenzi epheleleyo, ukhuseleko oluphezulu, kunye noyilo oluhlala ixesha elide. Sinokubonelela ngeesirinji kunye netyhubhu ehambelana nezo mpawu zidumileyo ze-CT, iMRI, ii-injection ze-DSA Ngesimo sabo sengqondo esinyanisekileyo kunye namandla obuchwephesha, bonke abasebenzi be-LnkMed bayakumema ngokunyanisekileyo ukuba uze uhlolisise iimarike ezininzi kunye.