Ochwepheshe bezokunakekelwa kwempilo kanye neziguli bathembele ku-magnetic resonance imaging (MRI) kanyeUkuskena kwe-CTubuchwepheshe bokuhlaziya izicubu ezithambile nezitho zomzimba, ukuthola izinkinga ezahlukahlukene kusukela ezifweni eziwohlokayo kuya ezimila ngendlela engahlaseli. Umshini we-MRI usebenzisa insimu enamandla yamagnetic kanye namaza omsakazo akhiqizwe yikhompyutha ukukhiqiza izithombe ezinqamula izigaba. Ngakho-ke, ikhwalithi ye-MRI incike ekufaneni kwensimu yamagnetic - ngisho nomkhondo omncane wamagnetism ngaphakathi kwesithwebuli se-MRI ungaphazamisa insimu futhi wehlise ikhwalithi yesithombe se-MRI.
Indlela i-MRI esebenza ngayo ezingeni eliphezulu
Imishini ye-MRI esijwayelene nayo namuhla isebenza ngesimiso se-nuclear magnetic resonance (NMR). Ngokukhethekile, ama-molecule angaphakathi komzimba womuntu aqukethe i-hydrogen, kanti i-nucleus ye-athomu ye-hydrogen yakhiwe yi-proton eyodwa esebenza njengomagnet ene-north pole ne-south pole. Lapho kusetshenziswa insimu yamagnetic, ama-spin awo, okuyisici sezinhlayiya ezincane, aqondana ngokulinganayo. Njengoba isiguli sifakwa ngaphakathi kwe-MRI scanner tube, ama-spin ama-proton kuma-molecule omzimba ayaqondana, wonke abheke ohlangothini olufanayo, afana nebhendi elihambayo elizilolonga enkundleni yebhola.
Noma kunjalo, ngisho nokwehluka okuncane kakhulu ensimini yamagnetic kungabangela ama-proton ukuthi avumelane ngezindlela ezahlukene, okusho ukuthi ngeke asabele ngendlela efanayo ku-stimulus. Lokhu kungafani kungadida ama-algorithms okuthola. Eqinisweni, lokhu kutholwa okungajwayelekile, umsindo wesignali oweqile, noma ukushintshashintsha okungahleliwe kobukhulu besignali kungabangela izithombe ezingenalutho. Isithombe esisezingeni eliphansi singase siholele ekuxilongweni okungalungile futhi, ngenxa yalokho, izinqumo zokwelapha ezingalungile.
(Njengoba sonke sazi, ukuthwebula izithombe kudinga ukuqedwa nge-ejenti yokwehlukanisa okuphakathi, futhi kudinga ukufakwa emzimbeni wesiguli ngokusebenzisaama-injector anamandla aphezulukanye ne-isirinji namapayipi. I-LnkMed ingumkhiqizi ogxile ekusizeni ekulethweni kwama-contrast agents. Yakhiwe ngokuzimelaI-MRIumehlukoumjovo, Umjovo we-CT scanfuthiUmjovo we-DSAKuye kwasatshalaliswa ezibhedlela emazweni amaningi ukuze kuhlinzekwe ngezinsizakalo zokunakekelwa kwezokwelapha. Ama-injector ethu awangeni manzi, aguquguquka kakhulu, futhi alungele abasebenzi bezokwelapha ukuhamba nokusebenza; asebenzisa ukuxhumana kwe-Bluetooth, umqhubi akadingi ukuchitha isikhathi esiningi ekubekeni nasekusetheni; izingxenye zokufaka esikhundleni zamahhala uma isevisi yangemva kokuthengisa itholakala. I-LnkMed izibophezele ekuhlinzekeni ngemikhiqizo nezinsizakalo ezisezingeni eliphezulu zei-radiology kanye nokuthwebula izithombe.
Uma unesithakazelo, wamukelekile ukubuza ngale imeyili:info@lnk-med.com)
Ukukhetha Izinto Eziyingxenye Kubalulekile
Ukuba khona kwezingxenye zikagesi ngaphakathi komhubhe wesikena se-MRI kunamandla okuphazamisa ukufana kwensimu, futhi ngisho nenani elincane kakhulu likagesi lingathinta ikhwalithi yesithombe se-MRI. Ngenxa yalokho, kubalulekile kubakhiqizi bemishini yezokwelapha ukuthi bafune izingxenye, njenge-fixed capacitors, i-trimmer capacitors, i-inductors, kanye nezixhumi, ezakhiwe ngezinsimbi ezihlanzekile kakhulu ezingenayo i-magnetism elinganisekayo.
Ukunamathela kule mfuneko kuqala ngezinqubo zokulandelela eziqinile kanye nokuhlola, kanye nesisekelo esiqinile sobuchwepheshe besayensi yezinto zokwakha. Isibonelo, ama-capacitor amaningi aklanywe ngokuqeda kwesithiyo se-nickel ukuze kulondolozwe ukushintshwa; noma kunjalo, izakhiwo zikagesi ze-nickel zenza i-capacitor ingafaneleki ukusetshenziswa ezinhlelweni zokuthwebula izithombe. Ngokufanayo, ithusi lezentengiselwano, enye into esetshenziswa njalo, nayo ayifanelekeli lezi zinhloso.
Ukunaka imininingwane ngokucophelela ezingeni lezingxenye kuvimbela ukuphambuka futhi kunciphisa isidingo sokulungiswa kwesithombe. Ngenxa yalokho, odokotela bangakwazi ukuhlola nokuhlola iziguli ngempumelelo ngaphandle kokudinga izinqubo eziphazamisayo kakhulu.
Isikhathi sokuthunyelwe: Mashi-13-2024
