Vula Izikena Ze-MRI Ziqeda Ukwesaba Kwe-Claustrophobic
Ukubuka: 0 Umbhali: Isikhathi Sokushicilela Isihleli Sesayithi: 2023-08-09 Umsuka: Isayithi
Buza
I-Magnetic resonance imaging (MRI) ingenye yezindlela ezibaluleke kakhulu zokuthwebula izithombe zezokwelapha namuhla.Isebenzisa amandla kazibuthe aqinile kanye nama-radiofrequency pulses ukuze ithole izithombe zezicubu zomuntu ezinokulungiswa okuphezulu, idlala indima ebalulekile ekuxilongeni izifo eziningi.Kodwa-ke, izikena ze-MRI zendabuko zinesakhiwo se-tubular esivalekile, okuphoqa iziguli ukuthi zilale zinganyakazi emhubheni omncane phakathi nokuskena.Lokhu kudala ukucindezeleka okukhulu kwengqondo, ikakhulukazi ezinganeni, abadala, kanye neziguli ezine-claustrophobia, njengoba ukulala ngaphakathi emhubheni ovalekile kungase kungakhululeki kakhulu.Ngaphezu kwalokho, umsindo omkhulu ukhiqizwa ngokuqhubekayo phakathi nokuhlolwa kwe-MRI, okunezela ngokwengeziwe ekuphathekeni kwesiguli.Izikena ze-MRI ezivulekile zathuthukiswa kanjalo ukuze zithuthukise kakhulu ulwazi lwesiguli.
Isici esikhulu kunazo zonke se-MRI evulekile yizibuthe ezimise okwe-C noma ezimise okwe-O ezidala ukufinyelela okuvulekile kuzo zombili izinhlangothi zebhore.Iziguli zibekwe endaweni evulekile ukuze zikwazi ukubona indawo engaphandle esikhundleni sokuvaleka endaweni encane.Lokhu kunciphisa kakhulu ukukhathazeka kwesiguli kanye nemizwa yokuvalelwa.Ukwengeza, i-MRI yokufinyelela evulekile ikhiqiza kuphela ama-decibel angu-70 omsindo, ukwehla okungama-40% ukusuka kumadecibel angu-110 ezikena ze-MRI ezivaliwe zendabuko, okuvumela inqubo yokuskena enethezeke kakhudlwana.
Okumise okwe-C
Okumise okwe-O
Mayelana nezingxenye zesistimu, i-MRI evulekile igcina izingxenye eziyinhloko zesikena se-MRI esivamile, okuhlanganisa uzibuthe oyinhloko okhiqiza inkambu yamagnetic eqinile emile, amakhoyili e-gradient akhiqiza izinkambu ze-gradient, namakhoyili e-RF okuvusa amadlingozi nokutholwa kwesignali.Amandla ensimu kazibuthe oyinhloko ku-MRI evulekile asengafinyelela ku-0.2 kuya ku-3 Tesla, ngokuhambisana ne-MRI evamile.I-MRI evulekile iphinde ihlanganise izakhiwo ezengeziwe zokusekela isiguli kanye nezindlela zokumisa ukuze kuhlangatshezwane nokucushwa okuvulekile kanye nezidingo zokuma kwesiguli.Sekukonke, ngenkathi ithuthukisa isipiliyoni sesiguli, i-MRI evulekile igcina izimiso eziyisisekelo ze-imaging resonance magnetic futhi isengakwazi ukunikeza izithombe zekhwalithi ephezulu zezicubu zomuntu.
Uma kuqhathaniswa ne-MRI evamile evaliwe, i-MRI evulekile inezinzuzo eziyinhloko ezilandelayo:
1. Kunciphisa kakhulu ukwesaba kwe-claustrophobic.Idizayini evulekile iqinisekisa ukuthi iziguli azizizwa zivalelwe ngaphakathi emhubheni omncane, okunikeza indawo ezolile ikakhulukazi ezinganeni, abantu abadala, noma iziguli ezine-claustrophobic.Lokhu kuthuthukisa ukuthobela imithetho futhi kuvumela ukutholwa kwezikena zekhwalithi ephezulu.
2. Umsindo owehliswe ngokuphawulekayo, okuvumela ukuskena okunethezekile.Amazinga omsindo we-MRI avulekile cishe aphansi ngo-40% kunezinhlelo ezivaliwe.Umsindo oncishisiwe unciphisa ukukhathazeka kwesiguli, uvumele izikhathi ezinde zokuskena kanye nokutholwa kwesithombe okunemininingwane eyengeziwe.
3. Ukuguquguquka okwengeziwe futhi kufinyeleleke kuzo zonke iziguli.Ukufinyelela okuvulekile nomsindo oncishisiwe kwenza ukuhlola kube lula kubasebenzisi bezihlalo zabakhubazekile, iziguli zohlaka, noma labo abanezinkinga zokuhamba.Izikena ze-MRI ezivulekile zingaskena iziguli ngokuqondile ngaphandle kokudluliselwa okucindezelayo ngokomzimba nangokwengqondo.
4. Inika amandla izinhlelo zokusebenza zokungenelela.Umklamo ovulekile unikeza ukufinyelela okulula ezigulini ngesikhathi sokuskena, kusiza izinqubo zokungenelela eziqondiswa yi-MRI.Odokotela bangahlinza iziguli ngesikhathi sangempela kuyilapho beqhubeka bethwebula indawo yokwelashwa.
Kunemikhawulo ethile ye-MRI evulekile uma iqhathaniswa nezinhlelo ezivaliwe:
1. Ikhwalithi yesithombe ingaba ngaphansi kancane, ikakhulukazi ekuhlukeni kwezicubu ezithambile nokucaca.Idizayini evulekile isho ukuthi indawo kazibuthe ayihlangani kakhulu kunamasilinda avamile avalelwe, okuholela emugqeni wegrediyenti owehlisiwe kanye nokulungiswa kwesithombe sokugcina esiphansi.Lokhu kugqame kakhulu kuzikena ze-MRI ezivulekile zenkundla ephansi.Izikena ezivulekile ze-1.5T noma ze-3T eziqinile zinganxephezela inhomogeneity yenkambu ngokucwebezela okuthuthukisiwe kanye nedizayini yokulandelana kwenhliziyo.Kodwa ngokwethiyori, amasilinda avalelwe ahlala enika amandla izinkambu ezilungiselelwe kangcono nezifanayo.
2. Ukusebenza kwezithombe ezisezingeni eliphansi ezigulini ezikhuluphele ngenxa yezinkambu kazibuthe ezingalingani.Iziguli ezikhuluphele zinevolumu enkulu yomzimba, futhi idizayini evulekile idonsa kanzima ukugcina i-homogeneous magnetic field coverage phezu kwazo.Izikena ze-MRI ezivalekile zendabuko zidinga kuphela ukuthuthukisa ukufana kwensimu endaweni encane yomhubhe oyi-cylindrical, zithole imiphumela engcono ezigulini ezinkulu.Kodwa abathengisi be-MRI abavulekile basebenzela izixazululo ezenziwe ngokwezifiso ezifana nokuvuleka okubanzi kwesiguli namandla enkundla aqinile ukubhekana nalo mkhawulo.
3. Isakhiwo esiyinkimbinkimbi esiholela ezindlekweni eziphakeme zokuthenga nokunakekela.Idizayini evulekile idinga amajiyometri wekhoyili kazibuthe kanye ne-gradient, kanye namasistimu okuphatha isiguli angokwezifiso.Lokhu kukhula kwenkimbinkimbi yokwakha kuhumushela ezindlekweni zokuqala eziphezulu uma kuqhathaniswa nozibuthe abayisilinda abavaleleke bamandla ensimu alinganayo.Ngaphezu kwalokho, ukwakheka okungajwayelekile kozibuthe be-MRI abavulekile kubenza kube nzima ukubabeka ngaphakathi kwengqalasizinda ekhona yesibhedlela eyenzelwe amabhore e-MRI avalelwe.Ukunakekela isikhathi eside nokugcwalisa kabusha i-helium nakho kuyabiza ngenxa yemvelo yangokwezifiso yezinhlelo ze-MRI ezivulekile.Kodwa ezigulini ezizuza kakhulu ekwakhiweni okuvulekile, lezi zindleko ezengeziwe zingathethelelwa.
Kafushane, izikena ze-MRI zezakhiwo ezivulekile zinqoba ubuthakathaka bezinhlelo ze-MR ezivaliwe zendabuko futhi zithuthukisa kakhulu ukunethezeka nokwamukelwa kwesiguli.Bahlinzeka ngendawo yokuskena enobungane ezuzisa iziguli eziningi.Ngokuthuthuka okuqhubekayo, i-MRI evulekile izothola ukusetshenziswa okubanzi komtholampilo, ikakhulukazi ezigulini ezikhathazekile, zezingane, asebekhulile, kanye neziguli ezingakwazi ukuhamba.
