Iisiqinisi isithombewazalwa ngawo-1950 futhi wayengumkhiqizo omuhle kakhulu.Ukubukeka kwakhe kwaqeda umlando wokuthwebula izithombe zesikrini.Yenza umthamo we-X-ray fluoroscopy wehliswe kakhulu kuleyo nkathi, ukusebenziseka kalula kukachwepheshe kwaba ngcono kakhulu, futhi isiguli kanye nochwepheshe bathola izinga elikhulu lokuvikelwa.
Ngokufanayo, ngokuthuthukiswa kobuchwepheshe, ama-intensifiers wesithombe afikile namuhla, futhi angena kancane kancane ekugugeni, futhi isiphetho sokushintshwa sekuyisikhathi eside sihleliwe.Ngokuthuthuka kobuchwepheshe obuhlukahlukene bezithombe eziguqukayo, ubuchwepheshe bezithombe zokuqinisa izithombe buqedwa kancane kancane.
Namuhla, ngeke ngithande inkumbulo yokuqinisa isithombe lapha, kodwa ngihlaziye kuphela ukuthi kungani isiqinisekisi sesithombe sisusiwe nawo wonke umuntu.Ngicabanga ukuthi kunezizathu ezimbalwa:
Okokuqala: ifomethi yokuthwebula incane, futhi kulula ukuyigeja nokuyixilonga.
Njengoba kungabonakala emfanekisweni ongezansi, uhlangothi lwesobunxele luyisithombe esakhiwe ukukhuliswa kwe-imaging kwawo wonke umgudu wokugaya ukudla, okungaqukatha kuphela ingxenye yengxenye ehloliwe kuhlaka olulodwa;uhlangothi lwesokudla wumfanekiso wamanje ojwayelekile wezinga elikhulu, elingaqukatha yonke Indawo yonke yokuhlolwa komgudu wokugaya ukudla ingaba lula kakhulu ukubhekwa nokuxilongwa.
Ngaphansi kwezimo ezijwayelekile, lapho usebenzisa ukuthwebula okugqamisa ukugqama, kuyadingeka ukuthi uqhubeke unyakazisa indawo yokuthuthukisa ithunzi, ulandele ukugeleza kwe-ejenti yokuqhathanisa, futhi uhlole isikhathi sangempela, ukuze uthwebule kangcono indawo yesilonda, kodwa Ukuhlola ngezinga lokugeleza kwe-ejenti ehlukile esheshayo, kulula ukwenza Ucingo alukwazi ukuhambisana nokunyakaza, ngakho alukwazi ukubonwa.Isibonelo, ku-esophagography, kulula ukuvela isenzakalo sokukhuphuka kokuqhathanisa nokuhlukaniswa kwe-ejenti yokuqhathanisa.
Ifomethi encane yokuthwebula isibe isizathu esibaluleke kakhulu sokuthuthukiswa okulinganiselwe kokwandiswa kwesithombe.Ngakho-ke, kungenzeka yini ukwenza isithunzi sibe sikhulu?Eqinisweni, kungabonakala kusukela kumgomo wokusebenza wokwanda kwesithunzi ukuthi ngokwanda kwefomethi yokucabanga, ivolumu yokwanda kwesithunzi nayo iyashintsha kakhulu, futhi ekugcineni ayikwazi ukusetshenziswa ngokubambisana nawo wonke umshini, ngakho-ke ukwanda kwethunzi kwamanje okukhulu kungafinyelela amayintshi angu-12 kuphela, okuvame ukusetshenziswa Eziyinhloko ziyi-7/9inch.
Okwesibili, kulula ukuhlanekezelwa nokuhlanekezelwa, futhi kulula ukuphuthelwa futhi kuhlolwe kabi.
Ngenxa yomgomo wayo wokusebenza, iziqinisi zesithombe zijwayele ukuhlanekezelwa nokuhlanekezelwa.Ukuhlanekezela Kunezinhlobo ezimbili eziyinhloko zokuhlanekezela: eyodwa iwukuhlanekezela kwejiyomethri okuyisiyingi;enye i-asymmetrical, evame ukubizwa ngokuthi i-S-distortion.
Isizathu sokuhlanekezela kwejiyomethri ukuthi ukuvela kwesithombe se-X-ray endaweni egobile kukhiqiza isithombe esikhulu sento esendizeni yokungena emaphethelweni esikrini sokufaka kunaphakathi nendawo.Lokhu kuhlanekezela kuhlobene nejometri yesikrini sokufaka kanye nokuhluka komthombo we-X-ray.kuncike endaweni, ngakho kubizwa ngokuthi ukuhlanekezela kwejometri.Ilensi enokuhlanekezeka okunegethivu izonxephezela ngokwengxenye ukuhlanekezela okuhle ngenxa yokugoba kwesikrini sokufaka, ngaleyo ndlela yehlise ukuhlanekezela kukonke kwesithombe esiphumayo, kodwa ukuhlanekezela akukwazi ukugwenywa.
Olunye uhlobo lokuhlanekezela lubizwa ngokuthi i-S-distortion, okungenxa yesici sesici esimise okwe-S sezinto ezine-rectilinear, isenzakalo esibangelwa ukuphazamiseka kwenkundla kazibuthe yomhlaba noma izizibuthe ezinhlanhlathayo ezivela ezintweni ezizungezile.
Impela kungenxa yokuhlanekezela nokuhlanekezela (njengoba kuboniswe esithombeni esingezansi) ukuthi kuphazamisa kakhulu imiphumela yokuhlolwa kokuxilonga yezithombe ze-X-ray, okungase kuholele kalula ekuxilongweni okuphuthelwe kanye nokungaxilongwa kahle.
Okwesithathu, ukugqama kwesithombe kuphansi, okulula ukukugeja nokungahlonzwa kahle.
Njengamanje, ububanzi obuguquguqukayo bokuthwebula kwe-X-ray okujwayelekile bungu-14-bhithi noma u-16-bhithi, kuyilapho ububanzi obuguquguqukayo bokuqinisa isithombe buyi-10-bit kuphela.Ngamanye amazwi, ububanzi obuguquguqukayo bemikhiqizo yamanje yesithombe eguqukayo evamile izikhathi eziyi-16 noma izikhathi ezingu-32 kunefilimu.
Ububanzi obuguqukayo buhlukile, futhi umphumela unjengoba kukhonjisiwe esithombeni esingezansi.Ibanga eliguquguqukayo elingakwesokunxele ngokusobala libi kakhulu kunalelo elingakwesokudla, ngakho ukucoleka nombala wesithombe kuhluke kakhulu.
Isithombe sokwanda kwesithunzi siboniswa esithombeni esingezansi.Ibanga eliguquguqukayo lamabhithi ayi-10 ngeke likwazi ukuzisiza ekubhekeni izilonda ezinomehluko omncane ekuminyaneni kwesithombe, ikakhulukazi ezinguqukweni ze-pathological ze-imaging exudative kanye nesabalalisayo njengezinguquko zakuqala zamaphaphu akwa-SARS.Akunakuxilongwa ngendlela efanele, okungaholela kalula ekuxilongweni okugejiwe kanye nokuxilongwa okungalungile.
Ubuchwepheshe buyashintsha usuku nosuku, futhi izinguquko zemikhiqizo ziyazamazama umhlaba.Iziqinisi zesithombesebedlulile ezinsukwini zabo ezikhazimulayo futhi bafinyelele ekugcineni kwezimpilo zabo.Kuzoba khona impumelelo eyengeziwe ekuxilongweni kwezithombe zezokwelapha.Ukukhumbula okwedlule nokubheka phambili esikhathini esizayo, yonke into ekugcineni izoba umlando.
Uma unentshisekelo ngemikhiqizo yethu, wamukelekile ukuthi uthintane.
Isikhathi sokuthumela: Feb-18-2022