I-X-ray computed tomography (CT) iguqule umfanekiso wezonyango, inika imifanekiso eneenkcukacha ezinqamlezileyo zomzimba womntu. Eyona nto iphambili ekusebenzeni kweenkqubo ze-X-ray ze-CT ilele ityhubhu ye-X-ray, eyenza i-X-rays eyimfuneko kwi-imaging. Uphuculo lwakutsha nje lwetekhnoloji luye lwazisa i-variable focus distance detectors (VFDDs) kwiinkqubo ze-X-ray CT, eziphucula umgangatho wemifanekiso kunye nokukwazi ukuxilonga. Eli nqaku liphonononga iingenelo ze-VFDD kwiinkqubo ze-X-ray ze-CT kunye nendlela ezisebenzisana ngayo neetyhubhu ze-X-ray ukuphucula iziphumo zesigulane.
Ukuqonda umgama oguquguqukayo wesixhobo sokujonga
Umtshina wokugxila oguquguqukayo ubhekiselele kwisakhono senkqubo ye-X-ray ye-CT ukulungelelanisa ngokuguquguqukayo umgama phakathi kombhobho we-X-ray kunye nomtshini. Iinkqubo zeCT zesiqhelo zisebenzisa ugxininiso olungaguqukiyo, olunciphisa ukuguquguquka kwemifanekiso kunye nomgangatho. Ngokuxhasa ugxininiso oluguquguqukayo, iinkqubo ze-CT zanamhlanje zinokwandisa inkqubo yokucinga ngokusekelwe kwiimfuno ezithile zeskena ngasinye.
Phucula umgangatho womfanekiso
Enye yeenzuzo eziphambili ze-VFDD kwiinkqubo ze-X-ray ze-CT ziphuculwe kakhulu umgangatho womfanekiso. Ngokuhlengahlengisa ubude bojoliso, inkqubo inokuphucula ukusonjululwa kwendawo kunye nokwahlukileyo, okukhokelela kwimifanekiso ecacileyo, eneenkcukacha ezingakumbi. Oku kunenzuzo ngakumbi kwiindawo ezintsonkothileyo ze-anatomical, apho umfanekiso ochanekileyo uyimfuneko ukuxilongwa ngokuchanekileyo. Ityhubhu ye-X-reyi idlala indima ebalulekileyo kule nkqubo, njengoko inokulinganiswa ngokusekwe kubude obulungelelanisiweyo bogxininiso ukuze inike idosi yemitha yemitha elona ilungileyo, iqinisekisa umgangatho womfanekiso ugcinwa ngaphandle kokubeka esichengeni ukhuseleko lwesigulane.
Ukuphuculwa kokusebenza kwedosi
Olunye uncedo lokuguquguquka komgama wokujonga umgama kukuphuculwa kokusebenza kwethamo. Kwiinkqubo zemveli ezigxininisiweyo, ithamo lokusasazeka ngemitha lifana ngokufanayo nokuba ikweyiphi na indawo yokucinga. Oku kunokukhokelela ekutyhilekeni ngokungeyomfuneko kwezinye iindawo kunye nokungatyhileki kancinci kwezinye. Nge-VFDD, ityhubhu ye-X-ray inokulungelelanisa ukukhutshwa kwemitha ngokusekelwe kumgama osuka kwi-detector, eyenza ukuhanjiswa kwedosi echanekileyo ngakumbi. Oku akunciphisi ukuvezwa kwemitha yesigulana kuphela kodwa kuphucula ukhuseleko olupheleleyo lwenkqubo yokucinga.
Iiprothokholi zomfanekiso oguquguqukayo ngakumbi
Ukuqaliswa kwe-VFDD kuvumela ukuguquguquka okukhulu kwiiprotokholi zokucinga. Oogqirha banokuhlengahlengisa ubude bogxininiso ngokusekwe kwiimfuno ezithile zesigulana kunye nommandla womdla. Umzekelo, ubude befocal ubude bunokuba luncedo ngakumbi xa kusenziwa umfanekiso wamalungu amakhulu omzimba, ngelixa ubude obufutshane obugxininise bunokufaneleka ngakumbi kwizinto ezincinci, ezintsonkothileyo. Oku kulungelelaniswa kuqinisekisa ukuba iinkqubo ze-X-ray ze-CT ziyakwazi ukulungelelanisa kwiimeko ezahlukeneyo zeklinikhi, okwenza zibe sisixhobo esineendlela ezininzi zokuxilonga.
Ukwakhiwa kwakhona kwe-3D eyongeziweyo
Izixhobo zokujonga izinto eziguquguqukayo zikwanegalelo ekuphuculweni kwesakhono sokwakha kwakhona macala amathathu (3D). Ngokuthatha imifanekiso kwimigama eyahlukeneyo egxininisekileyo, inkqubo inokuvelisa imodeli echanekileyo ye-3D yezakhiwo ze-anatomical. Oku kuluncedo ngakumbi kucwangciso lotyando kunye novavanyo lonyango, apho imifanekiso echanekileyo ye-3D ibalulekile kwiziphumo eziyimpumelelo. Ukuthembeka kolu lwakhiwo luphuculwe kukukwazi kwetyhubhu yeX-reyi ukubonelela ngokuhambelana, imifanekiso ekumgangatho ophezulu kwimigama eyahlukahlukeneyo.
ukuququmbela
Isishwankathelo, ukuhlanganiswa kwee-variable focus distance detectors (VFDDs) kwiinkqubo ze-X-ray ze-CT zibonisa ukuqhubela phambili okubonakalayo kwi-teknoloji ye-imaging yezokwelapha. Ngokwandisa ubudlelwane phakathi kwetyhubhu ye-X-ray kunye ne-detector, ii-VFDDs ziphucula umgangatho womfanekiso, ziphucula ukusebenza kwethamo, kunye nokubonelela ngokuguquguquka okukhulu kwiiprothokholi zokucinga. Njengoko icandelo leradiyoloji liqhubela phambili, olu tshintsho ngokungathandabuzekiyo luya kukhokelela kubuchule obunamandla bokuxilonga kunye nokhathalelo lwezigulane oluphuculweyo. Ikamva leenkqubo ze-X-ray ze-CT liqaqambile, kwaye ii-VFDDs ziya kuvula indlela yezisombululo ezichanekileyo nezisebenzayo.
Ixesha lokuposa: Sep-15-2025