Le khasiUkuqina kwesithombewazalwa ngawo-1950s futhi wayengumkhiqizo omuhle. Ukubukeka kwakhe kwaqeda umlando wokucabanga kwesikrini. Kwenze umthamo we-X-ray Fluoroscopy wehliswe kakhulu kuleyo nkathi, ukusebenziseka lula kochwepheshe kwathuthuka kakhulu, futhi isiguli kanye nochwepheshe bathola isivikelo esikhulu.
Ngokufanayo, ngokuthuthukiswa kobuchwepheshe, ukuqiniswa kwezithombe sekufikile namuhla, futhi kancane kancane bangenele ukuguga, futhi isiphetho sokufakwa esikhundleni sekuyisikhathi eside sahlelwa. Ngokuphumelela kobuchwepheshe bezithombe ezinamandla ashukumisayo, ubuchwepheshe bezithombe zokuqinisa isithombe bususwa kancane kancane.
Namuhla, ngeke ngikwazise inkumbulo yesithombe sokuqina lapha, kepha kuphela ukuhlaziya ukuthi kungani isithombe sokuqina kwesithombe siqedwe nawo wonke umuntu. Ngicabanga ukuthi kunezizathu ezimbalwa:
Okokuqala: Ifomethi yokucabanga incane, futhi kulula ukuphuthelwa yi-misdiagnose.
Njengoba kungabonakala kusuka kubutho elingezansi, uhlangothi lwesobunxele luyisithombe esakhiwa ukungezwani okwezithombe kokugayayo kwepheshana lokugaya ukudla, elingenza kuphela ingxenye yengxenye ehloliwe kufreyimu eyodwa; Uhlangothi lwesokunene luyimfanekiso omkhulu wamanje esilinganiselwe, esingaqukatha sonke isiza sokuhlola sepheshana lokugaya ukudla singaba lula ngokwengeziwe ngokubukwa nokuxilongwa.
Ngaphansi kwezimo ezijwayelekile, lapho usebenzisa ukucabanga okuhlukile kokucabanga, kuyadingeka ukuhambisa ngokuqhubekayo isikhundla sokwenza ngcono isithunzi, futhi kuhlolwe kangcono i-ejenti ye-ejenti, kodwa kulula ukuyithwebula i-avent e-agent, ngakho-ke akwazi ukuhambisana nokunyakaza, ngakho-ke akukwazi ukubonwa. Isibonelo, ku-esophagography, kulula ukuvela nto yokwandisa okuhlukile kanye nokwehlukaniswa kwe-ejenti yokungafani.
Ifomethi encane yokucabanga isibe isizathu esibaluleke kakhulu sokuthuthukiswa okulinganiselwe kokungezelwa kwesithombe. Ngakho-ke, kungenzeka yini ukwenza isithunzi sibe sikhulu? Eqinisweni, kungabonakala kusuka kumgomo osebenzayo wethunzi kwandisa lokho ngokwanda kwefomethi yokucabanga, ivolumu yalo lonke isithunzi ishintsha kakhulu, ngakho-ke ukwanda kwesithunzi esikhulu kuphela kungafinyelela kuphela amasentimitha ayi-7 / 9inch.
Okwesibili, kulula ukuhlanekezelwa futhi kuhlanekezelwe, futhi kulula ukuphuthelwa futhi kungaziwa kahle.
Ngenxa yemigomo yayo yokusebenza, ukuqina kwesithombe kuthambekele ekuhlanekezelweni nasekuhlanekezeleni. Ukuhlanekezela Kunezinhlobo ezimbili eziphambili zokuhlanekezela: enye iyisiyingi sokulwa kwejometri elilinganiselayo; enye yi-asymmetrical, evame ukubizwa ngokuthi ukuhlanekezela.
Isizathu sokuhlanekezela kwejometri ukuthi ukuqagela kwesithombe se-X-ray esiya ebusweni be-egobile kukhiqiza isithombe esikhudlwana sento endizeni yokungena emaphethelweni wesikrini sokufaka esikrinini sokufaka esikrinini sokufaka ku-phakathi. Lokhu kuhlanekezela kuhlobene ne-geometry yesikrini sokufaka kanye nokuhlukahluka komthombo we-X-ray. Ukuncika kwesikhundla, ngakho-ke ibizwa ngokuthi ukuhlanekezela kwe-geometrical. I-lens enokuhlanekezela okungalungile izonxephezela ngokwengxenye kokuhlanekezela okuhle ngenxa ye-curvature yesikrini sokufaka, ngaleyo ndlela kuncishiswe ukuhlanekezela kwesithombe esiphelele, kepha ukuhlanekezela akunakugwenywa.
Olunye uhlobo lokuhlanekezela lubizwa ngokuthi ukuhlanekezela, okubangelwa isithombe esimise okwenziwe ngesimo sezinto ezixakile, into ebangelwa ukuphazamiseka kusuka kumandla kazibuthe omhlaba noma amandla kazibuthe aphambukayo avela emishini ezungezile.
Kuyinto ngokunembile ngenxa yokuhlanekezela nokuhlanekezela (njengoba kukhonjisiwe kwisibalo esingezansi) ukuthi kuphazamisa kakhulu imiphumela yokuhlolwa kokuhlonza kwezithombe ze-X-ray, ezingaholela kalula ekuxilongeni okuphuthelwe kanye ne-misdiagnosis.
Okwesithathu, umehluko wesithombe uphansi, okulula ukuphuthelwa futhi kungaziwa kahle.
Njengamanje, uhla olushukumisayo lwe-X-ray imaging nge-14-bit noma i-16-bit, ngenkathi uhla olushukumisayo lokuqina kwesithombe lungenza kuphela i-10-bit. Ngamanye amagama, uhla olushukumisayo lwemikhiqizo yamanje yokulinganisa yokucabanga enamandla izikhathi eziyi-16 noma izikhathi ezingama-32 ezenziwa yifilimu.
Ibanga elishukumisayo lihlukile, futhi umphumela uba njengoba kukhonjisiwe kwisibalo esingezansi. Ibanga elishukumisayo ngakwesokunxele ngokusobala libi kakhulu kunalokho kwesokudla, ngakho-ke ubuciko nombala wesithombe buhluke kakhulu.
Isithombe sokukhuphuka kwesithunzi sikhonjiswa esithombeni esingezansi. Uhla lwama-Dynamic lwe-BITS luzosiza ekuboneni kwezilonda ngomehluko omncane ngokuguquguquka kwesithombe, ikakhulukazi ezinguquko ezikhuphukayo kanye nezinguquko ezifana nezinguquko ze-SARS Lung. Akunakutholakale kahle, okungaholela ekuxilongeni okuphuthelwe kanye ne-misdiagnosis.
Ubuchwepheshe bushintsha ngosuku ngalunye oludlulayo, futhi ushintsho lomkhiqizo luzamazama komhlaba.Ukuqina kwesithombebadlule ezinsukwini zabo ezikhazimulayo futhi bafinyelela ekugcineni kwezimpilo zabo. Kuboshelwe ukuba kube ngaphezulu kokuhlonza ekuhlolweni kokucabanga kwezokwelapha. Ukukhumbula okwedlule futhi kubheke phambili esikhathini esizayo, konke kuzogcina sekungumlando.
Uma unentshisekelo ngemikhiqizo yethu, wamukelekile ukubonisana.
Isikhathi sePosi: Feb-18-2022