Ungakhetha Kanjani Izingcezu Ze-CT Scanner

Ukukhetha umshini wesithwebuli se-CT kuhlanganisa izici ezimbalwa ezibalulekile, nenani lezingcezu ongazithola lingelinye elibaluleke kakhulu. Kodwa-ke, ukuthola inani eliphelele lezingcezu zezidingo zakho ezithile zomtholampilo kungaba inselele.

Lesi sihloko sizobuyekeza indima ebalulekile yokubala izingcezu, sihlole ukulungiselelwa okuhlukahlukene kwesithwebuli esitholakalayo, futhi sinikeze uhlaka oluzokusiza ukuthi uhlole izinketho futhi wenze isinqumo sokutshala imali ngokuzethemba.

Yiziphi izingcezu ze-CT Scanner?

Empeleni, inani locezu libhekisela enanini lezicubu zomzimba 'izingcezu' isithwebuli se-CT esingasithwebula ngokuzungezisa okukodwa. Lokhu kuhumusha ngokuqondile isivinini nemininingwane: isikena esinezingcezu eziyi-128 singamboza i-anatomy eyengeziwe ngesikhathi esincane futhi ngokulungiswa okucolekile kunemodeli yezingcezu eziyi-16..

Ukubalwa kocezu kuthinta ngokuqondile izici ezintath ~!phoenix_var103_1!~~!phoenix_var103_2!~

l Isivinini Sokuskena : Ukubalwa kocezu okuphezulu kuvumela isithwebuli ukuthi simboze indawo enkulu ngokuzungezisa ngakunye. Lokhu kunciphisa kakhulu isikhathi sokuskena, okubalulekile ezimweni eziphuthumayo futhi kunciphisa ukufiphala kokunyakaza.

l Kwesithombe R Ukulungiswa : Ngekhono lokuthola izingcezu eziningi, isithwebuli singakhiqiza izithombe ezincanyana, ezigqagqene. Lokhu kulungele ukudala ukucaca okuphezulu, ukubukwa okuningiliziwe kwezakhiwo ezinhle ze-anatomical, njengemithambo yenhliziyo.

l I-Radiation Dose : Izikena zesimanje ze-CT ze-high-slice ngokuvamile zingaqedela ukuskena ngokushesha kangangokuthi zinciphisa isidingo sokuchayeka okuphindaphindiwe, ngaleyo ndlela kube namandla okunciphisa umthamo ophelele wemisebe esigulini.

Izinhlobo Ezihlukene Zezikena Ze-CT (Ngokusekelwe Enani Lezingcezu)

Ubuchwepheshe be-CT buye bavela ngokuphawulekayo kusukela kuzikena zakuqala zocezu olulodwa. Namuhla, imakethe inikeza izinhlobonhlobo zezinketho ezichazwa 'isibalo sezingcezu.' Ukuze sikusize uqonde umehluko, sihlukanise izinhlobo eziyinhloko zezikena kuthebula elingezansi.

	I-Low-Slice CT Scanner	I-Mid-Slice CT Scanner	High-Slice CT Scanner	I-Ultra-High-Slice CT Scanner
Ukubala Ucezu	4, 8, 16	32, 64	128, 256	320, 640
Izinzuzo	1. Izindleko eziphansi zangaphambili 2. Ukusebenza nokugcinwa okulula	1. Ibhalansi enhle yejubane, ukulungiswa kanye nezindleko 2. Iphatha izivivinyo ezijwayelekile kanye nezikhethekile	1. Ukuskena okusheshayo 2. Ukulungiswa okuphezulu 3. Kuhle kakhulu kumacala ayinkimbinkimbi	1. Ukulungiswa okuphezulu kakhulu 2. Isithombe sesikhathi sangempela esiguqukayo 3. Amakhono okucwaninga athuthukile
Ukulinganiselwa	1. Izikhathi zokuskena ezinde 2. Ukusebenza okuphansi kwesiguli 3. Amandla okuxilonga alinganiselwe	1. Kungase kube nzima nesithombe senhliziyo esisheshayo 2. Ukulungiswa kwemininingwane emincane kunomkhawulo	1. Ukutshalwa kwezimali kokuqala okuphezulu 2. Ukwenyuka kwezindleko zesondlo	1. Izindleko eziphezulu kakhulu zokuthenga nezokusebenza 2. Igunyazwe kuphela kwizicelo ezikhethekile kakhulu
Izicelo Ezijwayelekile	1. Izikena zekhanda/umgogodla/umkhawulo 2. Ukuthwebula isithombe sesisu/i-pelvis jikelele 3. Izifundo eziyisisekelo zamathambo/amalunga	1. Isithombe sokuhlukumezeka kwesimo esiphuthumayo 2. Izikena zesifuba/ zesisu 3. I-imaging ye-vascular eyisisekelo	1. I-Cardiac CT angiography (CCTA) 2. Izifundo eziphezulu ze-vascular 3. I-Advanced oncology imaging	1. Ukuthwebula kwenhliziyo okuthuthukisiwe 2. Ukuthwebula kwemizwa 3. Ucwaningo lwezithombe olusebenzayo
Ideal For	1. Imitholampilo emincane 2. Izinsiza ezigxile ezivivinyweni ezijwayelekile	1. Izibhedlela zomphakathi 2. Izikhungo zokunakekelwa okuphuthumayo 3. Izilungiselelo zomtholampilo eziguquguqukayo	1.  Izibhedlela ezinkulu 2. ezizinikele Izikhungo zokuthwebula 3. Izakhiwo zamacala ayinkimbinkimbi	1. Izikhungo zezokwelapha zezemfundo 2. R search izikhungo 3. Izikhungo ezikhethekile zenhliziyo/zemithambo

Izinto Ezibalulekile Okufanele Zicatshangwe Lapho Ukhetha I -CT Scanner

Ukukhetha isithwebuli se-CT esifanele kuhilela okungaphezu nje kokucaciswa kobuchwepheshe. Kudinga ukuhlolwa ngokucophelela kokuthi isithwebuli sizohambisana kanjani nezidingo zakho zokusebenza zansuku zonke, imigomo yomtholampilo, namaqiniso ezezimali. Izinto ezilandelayo zizosiza ekuqondiseni inqubo yakho yokwenza izinqumo.

l Inani labantu Besiguli
Ukuqonda izinhlobo nenani leziguli ozihlinzekayo kubalulekile ekunqumeni isithwebuli esifanele.
①  Iminyaka Yesiguli : Iziguli zezingane kanye neziguli zingase zibe nzima ukuhlala zinganyakazi ngesikhathi sokuskenwa ngenxa yokungaphatheki kahle noma ukukhathazeka, okwandisa ingcuphe yama-artifacts anyakazayo. Izikena ze-CT ezinocezu oluphezulu zinenzuzo kulezi zimo, njengoba isivinini sazo sokuthola ngokushesha sifinyeza isikhathi sokuskena futhi sinciphisa ukufiphala okuhlobene nokunyakaza.
②  Umthamo Wesiguli : Ezindaweni ezinomphumela ophezulu njengeminyango ematasa yezimo eziphuthumayo noma izibhedlela ezinkulu, izikena ze-CT ezinocezu oluphezulu zikhethwa ngenxa yekhono lazo lokuhlola ngokushesha. Lokhu kusiza ukunciphisa izikhathi zokulinda kwesiguli futhi kuthuthukisa ukusebenza kahle komsebenzi.
③  Isethulo Sesiguli : Ezimeni zokuhlukumezeka noma izimo eziyinkimbinkimbi, lapho isikhathi nokunemba kubalulekile ekuxilongweni nasekulashweni, izikena ze-CT ezinocezu oluphezulu zivame ukukhethwa ngenxa yekhono lazo lokuthwebula ngokushesha izithombe zokucaca okuphezulu zezifunda eziningi zomzimba ekutholweni okukodwa. Ngokuphambene, izikena ze-CT ezinocezu oluphansi zingase zanele ezifundweni ezivamile noma ezingaphuthumi, lapho isivinini sokuskena esinensayo samukelekayo futhi ikhwalithi yesithombe ihlala yanele ukuxilonga.

l Indawo Ehloliwe kanye Nenhloso
Indawo yomzimba ehlolwayo kanye nenjongo yokuxilonga ithonya kakhulu ikhono lesikena elidingekayo.
Ngokuhlolwa kwekhanda okujwayelekile, isifuba esingahlukanisi noma izifundo zesisu, kanye nokuhlolwa okuvamile, ama-CT s canner aphakathi nocezu oluphansi kuya kwamaphakathi ngokuvamile anele. Lezi zivivinyo ngokuvamile azidingi ukulungiswa okuphezulu kwesikhashana noma kwendawo okudingekayo ezinhlelweni zokusebenza ezithuthuke kakhulu.
Kodwa-ke, ezifundweni ezikhethekile ezifana ne-coronary CT angiography (CTA), ukubalwa kwezingcezu kuba bucayi. Nakuba imihlahlandlela incoma okungenani isithwebuli se -CT esingu-64-slice , ukwenza i-coronary CTA kusistimu yeziqephu ezingu-64 kungaba inselele ngenxa yokuba sengozini enkulu kuma-artifact okushaya kwenhliziyo. Izikena ezinocezu oluphezulu (isb., ucezu oluyi-128 nangaphezulu) zihlinzeka ngokulungiswa okuphezulu, ukubekezelela ukushaya kwenhliziyo okungcono, kanye nekhwalithi yesithombe engaguquki, okuholela ekuxilongeni okuthembeke kakhulu kanye nezinqubo zokucabanga ezenziwe lula.

l Isabelomali kanye Nesamba Sezindleko Zobunikazi
Ukucatshangelwa kwezimali kudlulela ngale kwenani lokuthenga lokuqala.
Izikena ze-CT ze-high-slice zibandakanya ukutshalwa kwezimali kwangaphambili okuphezulu, kanye nezindleko ezikhulayo zamandla, ukunakekelwa, kanye nokuthuthukiswa okungenzeka. Amasistimu we-low-slice, ngenkathi enikeza isivinini esilinganiselwe nokulungiswa, ngokuvamile athengeka kakhulu ukuwathola, ukusetshenza, nokuwanakekela.
Isinqumo sokugcina kufanele silinganisele izidingo zomtholampilo nokusimama kwezezimali, siqinisekise ukuthi isikena esikhethiwe sihlangabezana nezidingo zokuxilonga kanye nesabelomali sokusebenza sesikhathi eside.

Isiphetho

Kafushane, ukukhetha kwesibalo se-CT scanner akukhona nje ukukhetha inombolo ephezulu kakhulu etholakalayo; imayelana nokufanisa ubuchwepheshe nezidingo zakho ezithile zomtholampilo, inani lesiguli, kanye nezinkinga zezimali. Kusukela ekuthuthukiseni isivinini nokulungiswa kokunakekelwa okubucayi kanye nokuxilongwa okuyinkimbinkimbi kuya ekuqinisekiseni ukusebenza kahle kwezindleko zokuthwebula okujwayelekile, ukubalwa kweziqephu ezifanele kuthinta ngokuqondile amandla akho okuxilonga, ukusebenza kahle, kanye nokuzinza kwezezimali kwesikhathi eside. Ngokukala ngokucophelela izici ezichazwe kulo mhlahlandlela  -  izicelo zakho zomtholampilo eziyinhloko, inani lesiguli  kanye nenani eliphelele lobunikazi  -  ungadlulela ngale kwezicaciso ukuze wenze ukutshalwa kwezimali ngokuzethemba, ukwaziswa okuzosebenza ngempumelelo ekusebenzeni kwakho iminyaka ezayo.