Uma kukhulunywa ngezithombe zezokwelapha, kusetshenziswa ubuchwepheshe obubili obujwayelekileama-detectors ama-flat panelfuthiiziqinisekiso zesithombe.Bobabili lobu buchwepheshe busetshenziselwa ukuthwebula nokuthuthukisa izithombe ngezinjongo zokuxilonga, kodwa bakwenza ngezindlela ezahlukene.
Ama-flat panel detectors awuhlobo lobuchwepheshe be-digital radiography obusetshenziselwa ukuthwebula izithombe ze-X-ray.Ahlanganisa iphaneli elincanyana, eliyisicaba eliqukethe igridi yamaphikseli kanye nongqimba lwe-scintillator.Lapho ama-X-ray edlula emzimbeni futhi exhumana ne-scintillator, ikhipha ukukhanya, okube sekuguqulelwa ekubeni isignali kagesi ngamaphikseli.Lesi siginali sibe sesicutshungulwa futhi sisetshenziselwa ukwakha isithombe sedijithali.
Ngakolunye uhlangothi, ama-intensifiers wesithombe asetshenziswa ku-fluoroscopy, inqubo evumela izithombe zesikhathi sangempela zezingxenye zomzimba ezihambayo.Iziqinisekiso zesithombe zisebenza ngokukhulisa ukukhanya okukhiqizwa lapho ama-X-ray ehlangana nesikrini se-phosphor.Ukukhanya okukhulisiwe kube sekuthwetshulwa ikhamera futhi kusetshenzwe ukuze kwakhiwe isithombe.
Omunye umehluko omkhulu phakathi kwezitholi zamaphaneli ayisicaba kanye neziqinisekisi zesithombe yindlela ezithwebula ngayo futhi zicubungule ngayo izithombe.Izitholi zephaneli eyisicaba ziyidijithali futhi zikhiqiza izithombe ezinokulungiswa okuphezulu ezifanele kokubili ukucabanga okumile nokuguquguqukayo.Iziqinisi zesithombe, ngakolunye uhlangothi, zikhiqiza izithombe ze-analog ngokuvamile eziphansi ngokulungiswa futhi ezifaneleke kakhulu ukuthwebula izithombe zesikhathi sangempela.
Omunye umehluko phakathi kobuchwepheshe obubili ukuzwela kwabo kuma-X-ray.Izitholi zephaneli eyisicaba zizwela kakhulu kuma-X-ray, okuvumela ukuthi kusetshenziswe imithamo ephansi yemisebe ngesikhathi sokuthwebula.Lokhu kubaluleke kakhulu ezinqubweni zezingane kanye nokungenelela, lapho ukunciphisa ukuvezwa kwemisebe kubalulekile.Iziqinisi zesithombe, ngenkathi zisakwazi ukukhiqiza izithombe zekhwalithi ephezulu, ngokuvamile zidinga imithamo ephezulu yemisebe.
Ngokuya ngosayizi nokuphatheka, izitholi zephaneli eyisicaba zivame ukuba zinkulu futhi aziphatheki kancane kuneziqinisi izithombe.Lokhu kungenxa yokuthi izitholi zamaphaneli ayisicaba ziqukethe indawo engaphezulu yokuthwebula izithombe, kuyilapho iziqinisekisi zesithombe zivame ukuba zincane futhi zilula, okuzenza zifaneleke kakhulu izinhlelo zokusebenza zezithombe zeselula.
Izindleko nazo ziyisici okufanele icatshangelwe lapho uqhathanisa izitholi zephaneli eyisicaba kanye neziqinisi zesithombe.Izithungatha zephaneli eyisicaba zivame ukubiza kakhulu kuneziqinisi izithombe, okuzenza zingafinyeleleki kalula kwezinye izikhungo zokunakekelwa kwempilo.Kodwa-ke, izindleko eziphakeme zezitholi zamaphaneli ayisicaba ngokuvamile zivunyelwa ikhwalithi yazo yesithombe ephakeme kanye nezidingo zomthamo wemisebe ephansi.
Sekukonke, kokubili izitholi zamaphaneli ayisicaba kanye neziqinisayo zesithombe zinezinzuzo kanye nokubi zazo, futhi ukukhetha phakathi kobuchwepheshe obubili kuncike ezidingweni ezithile zokucabanga zesikhungo sokunakekelwa kwezempilo.Nakuba izitholi zamaphaneli ayisicaba zifaneleka kakhulu ekufanekiseni kwedijithali kokucaca okuphezulu, iziqinisekisi zesithombe zingcono ku-fluoroscopy yesikhathi sangempela futhi ziphathwa kalula futhi zonga imali.Njengoba ubuchwepheshe buqhubeka buthuthuka, kungenzeka ukuthi bobabili ubuchwepheshe buzoqhubeka buthuthuka futhi buhlale ndawonye embonini yezithombe zezokwelapha.
Isikhathi sokuthumela: Jan-10-2024