X-ray computed tomography (CT) yakashandura mifananidzo yezvokurapa, ichipa mifananidzo yakadzama yemuviri wemunhu. Pakati pekubudirira kweX-ray CT masisitimu ndeye X-ray chubhu, iyo inoburitsa maX-ray anodiwa pakufungidzira. Kufambira mberi kwetekinoroji kwazvino kwakaunza madhijitari ekutarisisa kureba (VFDDs) muX-ray CT masisitimu, kuvandudza kunaka kwemufananidzo uye kugona kwekuongorora. Ichi chinyorwa chinoongorora zvakanakira maVFDD muX-ray CT masisitimu uye mabatiro avanoita nemachubhu eX-ray kuvandudza mhedzisiro yevarwere.
Kunzwisisa variable focus detector kure
A variable focus detector inoreva kukwanisa kwe X-ray CT system kugadzirisa zvine simba chinhambwe pakati pe X-ray chubhu ne detector. Chinyakare CT masisitimu anowanzo shandisa yakagadziriswa yakatarisa, iyo inodzikamisa kuita kwemifananidzo uye kunaka. Nekutsigira shanduko yekutarisa, yemazuva ano maCT masisitimu anogona kukwirisa maitiro ekufungidzira zvichienderana nezvinodiwa zvega yega scan.
Wedzera kunaka kwemufananidzo
Imwe yemabhenefiti ekutanga eVFDD muX-ray CT masisitimu yakagadziridzwa zvakanyanya kunaka kwemufananidzo. Nekugadzirisa kureba kwekutarisa, sisitimu inogona kukwidziridza kugadziriswa kwenzvimbo uye kusiyanisa, zvichikonzera kujeka, mifananidzo yakawanda. Izvi zvinonyanya kubatsira munzvimbo dzakaoma dzeanatomical, uko kunyatso kufungidzira kwakakosha pakuongorora kwakaringana. Iyo X-ray chubhu inoita basa rakakosha mukuita uku, sezvo ichikwanisa kuverengerwa zvichienderana neyakagadziriswa kureba kuti ibudise iyo yakakwana radiation dosi, kuve nechokwadi chemhando yemufananidzo inochengetedzwa pasina kukanganisa kuchengetedzwa kwemurwere.
Kuvandudzwa kwedosi kushanda zvakanaka
Imwe mukana wekusiyana-siyana yekutarisa detector kureba ndeyekuvandudzwa kwedosi kushanda. Muchinyakare yakatarwa-yakatarisana masisitimu, iyo radiation dose inowanzo yunifomu zvisinei nenzvimbo yekufungidzira. Izvi zvinogona kukonzera kuratidzwa kusingakoshi mune dzimwe nzvimbo uye kusaratidzwa mune dzimwe. Iine VFDD, iyo X-ray chubhu inogona kugadzirisa radiation kubuda zvichibva pachinhambwe kubva kune detector, ichigonesa kunyatso kuburitsa dose. Izvi hazvingodzikisi kuratidzwa kweradiation yevarwere asiwo zvinovandudza kuchengetedzwa kwese kwemaitiro ekufungidzira.
Mamwe maprotocol anochinjika ekufungidzira
Kuunzwa kweVFDD kunobvumira kuchinjika kukuru mumaprotocol ekufungidzira. Makiriniki anogona kugadzirisa kureba kwekutarisa zvichienderana nezvinodiwa nemurwere uye nzvimbo yekufarira. Semuenzaniso, kureba kwefocal kureba kunogona kubatsira zvakanyanya pakufananidza nhengo dzemuviri dzakakura, nepo kureba kwepakati kupfupi kungave kwakakodzera kune zvidiki, zvakaomarara zvimiro. Uku kuchinjika kunovimbisa kuti maX-ray CT masisitimu anogona kuchinjika kune akasiyana siyana emakiriniki, achiaita chishandiso chakasiyana-siyana chekuongorora kufungidzira.
Yakavandudzwa 3D kuvakazve
Variable-focus detectors zvakare inobatsira pakuvandudza matatu-dimensional (3D) kuvakazve kugona. Nekutora mifananidzo pamadaro akatarisana akasiyana, iyo sisitimu inogona kuburitsa yakanyatsojeka 3D modhi yeanatomical zvimiro. Izvi zvinonyanya kukosha mukuronga kwekuvhiya uye kuongororwa kwekurapa, uko kwakaringana mifananidzo ye3D yakakosha kune zvinobudirira mhedzisiro. Kuvimbika kwezvigadziriso izvi kunowedzerwa nekugona kweX-ray chubhu kupa inowirirana, mifananidzo yemhando yepamusoro pamadaro akasiyana.
mukupedzisa
Muchidimbu, kubatanidzwa kweanosiyana-siyana anotarisisa kureba ma detectors (VFDDs) muX-ray CT masisitimu anomiririra kufambira mberi kwakakosha muhunyanzvi hwekufungidzira hwekurapa. Nekugadzirisa hukama pakati peX-ray chubhu uye detector, VFDDs inosimudzira mhando yemufananidzo, inovandudza dhigirii kushanda, uye inopa kuchinjika kukuru mumaprotocol ekufungidzira. Sezvo ndima yeradiology ichienderera mberi, izvi zvitsva pasina mubvunzo zvinotungamira kune simba rakawanda rekuongorora uye nekuvandudza kutarisirwa kwevarwere. Remangwana reX-ray CT masisitimu rakajeka, uye maVFDD achagadzira nzira yemhinduro dzakanyatsojeka uye dzinoshanda dzekufungidzira.
Nguva yekutumira: Sep-15-2025