Iumfanekiso wokuqinisawazalwa ngoo-1950 kwaye yayiyimveliso entle kakhulu.Inkangeleko yakhe yagqiba imbali yemifanekiso yesikrini.Yenze idosi ye-X-ray ye-fluoroscopy yancitshiswa kakhulu ngelo xesha, ukulungelelaniswa komchwephesha kwaphuculwa kakhulu, kwaye isigulane kunye nochwephesha bafumana ukhuseleko olukhulu.
Ngokufanayo, ngophuhliso lwetekhnoloji, i-intensifiers yemifanekiso ifikile namhlanje, kwaye ngokuthe ngcembe bangena ebudaleni, kwaye ikamva lokutshintshwa sele lilungiselelwe ixesha elide.Ngokuqhambuka kwetekhnoloji yemifanekiso eyahlukeneyo eguqukayo, itekhnoloji yokuqinisa umfanekiso iyapheliswa ngokuthe ngcembe.
Namhlanje, andizukuyixabisa inkumbulo yomfanekiso wokuqinisa umfanekiso apha, kodwa ndihlalutye kuphela ukuba kutheni umfanekiso wokuqinisa uphelisiwe nomntu wonke.Ndicinga ukuba kukho izizathu ezimbalwa:
Okokuqala: ifomathi yomfanekiso incinci, kwaye kulula ukuyiphosa kunye nokuxilongwa kakubi.
Njengoko kunokubonwa kumzobo ongezantsi, icala lasekhohlo ngumfanekiso owenziwe ngumfanekiso wokwandiswa kwe-digestive tract yonke, enokuthi iqulethe inxalenye yecandelo elihloliweyo kwisakhelo esinye;icala lasekunene yindlela yangoku yokulinganisa ubungakanani obukhulu, enokuthi iqulathe yonke Indawo yokuhlola indawo yokwetyisa inokuba lula ngakumbi ukujongwa kunye nokuxilongwa.
Phantsi kweemeko eziqhelekileyo, xa usebenzisa umfanekiso ophucula umahluko, kuyimfuneko ukuqhubeka nokuhambisa indawo yokwandisa isithunzi, ulandele indlela yokuhamba ye-arhente yochaso, kwaye wenze uphononongo lwexesha lokwenyani, ukuze ubambe ngcono indawo yesilonda, kodwa ukwenzela Uhlolo olukhawulezayo lokuqukuqela kwearhente yokuchasa, kulula uku Isixhobo asikwazi ukuqhubeka nentshukumo, ngoko ke asinakujongwa.Ngokomzekelo, kwi-esophagography, kulula ukuvela isenzeko sokwandiswa kokwahluka kunye nokuchithwa kwe-agent echaseneyo.
Ifomathi yomfanekiso omncinci ibe sisizathu esibaluleke kakhulu sophuhliso oluncinci lokunyuswa komfanekiso.Ngoko, ngaba kunokwenzeka ukwenza isithunzi sibe sikhulu?Enyanisweni, kunokubonwa kumgaqo osebenzayo wokunyuka kwesithunzi ukuba ngokunyuka kwefomathi yokucinga, umthamo wokwanda kwesithunzi nawo utshintsha kakhulu, kwaye ekugqibeleni awukwazi ukusetyenziswa ngokuhambelana nomatshini wonke, ngoko ke ukwanda kwesithunzi okwangoku kunokufikelela kwi-intshi ezili-12 kuphela, ezisetyenziswa ngokuqhelekileyo Ezona ziphambili ziyi-7/9inch.
Okwesibini, kulula ukugqwetheka nokugqwetheka, kwaye kulula ukuphoswa kunye nokuchazwa kakubi.
Ngenxa yomgaqo wayo wokusebenza, i-intensifiers yemifanekiso ijwayele ukuphazamiseka kunye nokuphazamiseka.Ukuphazamiseka Kukho iintlobo ezimbini eziphambili zokuphazamiseka: enye yi-circular balanced geometric distortion;enye i-asymmetrical, edla ngokubizwa ngokuba yi-S-distortion.
Isizathu sokugqwetheka kwejiyometri kukuba ukuboniswa komfanekiso we-X-reyi kwindawo egobileyo kuvelisa umfanekiso omkhulu wento kwinqwelo-moya yokungena emaphethelweni esikrini sokufaka kunophakathi.Oku kuphazamiseka kuhambelana nejometri yesikrini sokufaka kunye nokwahluka komthombo we-X-ray.ixhomekeke kwisikhundla, ngoko ibizwa ngokuba yi-geometrical distortion.I-lens enokuphazamiseka okungahambi kakuhle iya kuhlawulela ngokuyinxenye ukugqwesa okulungileyo ngenxa yokugoba kwesikrini sokufaka, ngaloo ndlela kuncitshiswe ukugqwesa ngokubanzi komfanekiso ophumayo, kodwa ukugqwesa akunakugwenywa.
Olunye uhlobo lokugqwesa lubizwa ngokuba yi-S-distortion, ngenxa yesimo somfanekiso ongu-S wezinto ze-rectilinear, isenzeko esibangelwa kuphazamiseko lwemagnethi yoMhlaba okanye umhlaba wemagnethi olahlekileyo ovela kwizixhobo ezingqongileyo.
Kuchanekileyo ngenxa yokuphazamiseka kunye nokuphazamiseka (njengoko kubonisiwe kumzobo ongezantsi) ukuphazamisa kakhulu iziphumo zokuhlolwa kwe-X-ray yemifanekiso, enokuthi iholele ngokulula ekuxilongweni okuphosiweyo kunye nokuxilongwa kakubi.
Okwesithathu, ukuchasana komfanekiso kuphantsi, okulula ukuphosakela kunye nokuxilongwa kakubi.
Okwangoku, uluhlu oluguquguqukayo lwe-imaging ye-X-reyi eqhelekileyo yi-14-bit okanye i-16-bit, ngelixa uluhlu oluguquguqukayo lokuqinisa umfanekiso luyi-10-bit kuphela.Ngamanye amazwi, uluhlu oluguquguqukayo lwemveliso yangoku ye-imaging eguquguqukayo ngamaxesha angama-16 okanye amaxesha angama-32 efilimu.
Uluhlu oluguquguqukayo luhlukile, kwaye umphumo uboniswe kumfanekiso ongezantsi.Uluhlu oluguquguqukayo ngasekhohlo ngokucacileyo lubi kakhulu kunolusekunene, ngoko ke ubuhle kunye nombala womfanekiso wahluke kakhulu.
Umfanekiso wokunyuka kwesithunzi uboniswe kumzobo ongezantsi.Uluhlu oluguquguqukayo lweebits ezili-10 aluyikunceda ekuqwalaselweni kwezilonda ezinomahluko omncinci kuxinaniso lwemifanekiso, ngakumbi kwi-exudative kunye ne-diffuse ye-imaging ye-pathological utshintsho olufana notshintsho lwe-SARS emiphungeni.Ayinakufunyaniswa ngokuchanekileyo, nto leyo inokukhokelela ngokulula ekuphosweni koxilongo kunye noxilongo olugwenxa.
Itekhnoloji iyatshintsha suku ngalunye, kwaye utshintsho lwemveliso luyagungqisa umhlaba.Iziqinisekisi zomfanekisobaye badlula kwiimini zabo ezizukileyo kwaye bafikelele esiphelweni sobomi babo.Kunyanzelekile ukuba kubekho impumelelo engaphezulu kuxilongo lwemifanekiso yezonyango.Ukukhumbula ixesha elidlulileyo kunye nokujonga phambili kwikamva, yonke into ekugqibeleni iya kuba yimbali.
Ukuba unomdla kwiimveliso zethu, wamkelekile ukubonisana.
Ixesha lokuposa: Feb-18-2022