Masifunde ngovavanyo lweMagnetoencephalography (MEG), olubonisa indlela esebenza ngayo ingqondo yakho.

Ngaba wakha weva ngolu vavanyo olubizwa ngokuba yi-`(Magnetoencephalography)` okanye `(MEG)`? Mhlawumbi wena okanye umntu omaziyo uxelelwe ukuba enze oku ngugqirha. Musa ukoyika, le yindlela yovavanyo ephucukileyo kakhulu, kwaye ayilimazi imizimba yethu nangayiphi na indlela. Namhlanje, siza kuthetha ngolu vavanyo lwe-`(MEG)` ngendlela elula onokuyiqonda.

Yintoni i-MEG? Kulula kakhulu!

Ngamafutshane, `(MEG)` luvavanyo olulinganisa amasimi emagnethi aveliswa yimisinga yombane engqondweni yakho. Khawuthelekelele, kufana nemiyalezo emincinci yombane etshintshiselwana ngaphakathi kwengqondo yethu. Lo mbane udala intsimi yemagnethi. Loo masimi emagnethi yileyo ilinganiswa ngulo matshini `(MEG)`.

Oku kuvumela oogqirha ukuba babone umsebenzi wobuchopho bakho njengemephu. Oku kunceda kakhulu kwiimeko ezifana nesifo sokuwa , apho banokubona khona ngqo apho kuvela khona isifo sokuwa kwengqondo .

Eyona nto ibalulekileyo kukuba olu vavanyo aluyonakalisi umzimba ('olungenasivayi'). Oko kuthetha ukuba akufuneki ufake iinaliti okanye wenze utyando. Awuchatshazelwa yimitha efana ne-'(X-ray)'. Phakathi kweendlela ezikhoyo ngoku, le `(MEG)` yeyona ndlela iphambili yokurekhoda nokuhlalutya umsebenzi wobuchopho.

Ziziphi iindlela zokusebenzisa uvavanyo lwe-MEG?

Iingcali ze-neurologists kunye neengcali ze-neurosurgeon zisebenzisa olu vavanyo (MEG) ngezizathu ezibini eziphambili:

1. Vavanya umsebenzi wengqondo yakho ozenzekelayo. Oku kunokunceda ekufumaneni indawo echanekileyo yokuxhuzula kumntu onesifo sokuxhuzula. Oku kubaluleke kakhulu ekucwangciseni utyando lwesifo sokuxhuzula. Khawuthelekelele uSamantha enesifo sokuxhuzula kwaye udinga utyando. Emva koko oogqirha benza i-MEG ukuze babone ukuba leliphi icala lobuchopho elibangelwa kukuxhuzula, baze bajolise kuloo ndawo kuphela baze benze utyando.

2. Hlola indlela ingqondo yakho esabela ngayo kwizinto ezibangela umdla.Oku kuvumela ukuba kudweliswe ngokuchanekileyo iindawo zobuchopho ezinxulumene nokuhamba, iimvakalelo, ulwimi, umbono, njl. Oku kuluncedo kakhulu ekucwangciseni utyando kubantu abaneethumba zobuchopho.

Ukongeza, i-MEG ikwayinxalenye ebaluleke kakhulu yophando lwe-neurological and psychiatric, apho izazinzulu zenza uphando ukuze ziqonde ngakumbi ukusebenza kwengqondo yomntu.

Uvavanyo lwe-MEG lusebenza njani? Luyinzululwazi kancinci, kodwa lulula!

Iiseli zemithambo-luvo ezikwiingqondo zethu ziyanxibelelana ngokuvelisa ii-voltages ezincinci zombane. Xa le mizila yombane ihamba, idala intsimi yemagnethi. Ezo ntsimi zemagnethi ziyafunyanwa, zirekhodwe, kwaye zihlalutywe zii-sensors zemagnethi ezibuthathaka kumatshini we-MEG.

Kodwa, le magnethi eveliswa yingqondo yakho ibuthathaka kakhulu. Ke ngoko, kufuneka iinkqubo zesensor ezikhethekileyo ukuze zibambe loo mqondiso. Ezi nkqubo ziqulathe iikhoyili ezincinci, ezinesisombululo esiphezulu. Ezi ziqhagamshelwe kwizixhobo ezibizwa ngokuba yi-SQUIDs – izixhobo zokuphazamisa i-quantum. Kukho ezingaphezu kwama-300 zezi sensors ngaphakathi kwisixhobo esifana nesigcina-ntloko osinxiba ngexesha lovavanyo.

Ngelixa ulele ungashukumi, ngamanye amaxesha umamele izandi, okanye wenza into efana nokujonga imifanekiso, ii-sensors ezikule helmethi, kunye nesoftware yekhompyutha ekhethekileyo, zisebenza kunye ukufumanisa nokurekhoda umsebenzi weeseli zemithambo-luvo. I-MEG irekhoda imiqondiso eqhelekileyo nengaqhelekanga engqondweni rhoqo nge-millisecond . La mandla emagnethi emva koko aboniswa kwiscreen sekhompyutha kunye nomfanekiso we-anatomical wobuchopho bakho. Oku kukuvumela ukuba "uchaze" apho imisebenzi ethile yobuchopho iqala khona kwaye yenzeka nini.

Ulungiselela njani uvavanyo lwe-MEG?

Ukuba uvavanywa yi-MEG, ugqirha wakho uza kukuxelela ukuba kufuneka uyeke ukutya okanye ukusela ngaphambi kovavanyo. Uza kukuxelela nokuba kufuneka wenze naluphi na utshintsho kumayeza akho okanye kwimisebenzi yakho yemihla ngemihla.

• Musa ukunxiba izinto zokuthambisa okanye iimveliso zeenwele ngomhla wovavanyo. Zinokuphazamisana novavanyo.
• Kwakhona, awunakukwazi ukuza nezinto zesinyithi kwigumbi lovavanyo. Umzekelo, ubucwebe, iiglasi, iiphini zeenwele, iibra ezingaphantsi kocingo, kunye nempahla enezixhobo zesinyithi. Ukuba kuyimfuneko, uya kunikwa ilokhwe yezonyango yokunxiba.

Kubalulekile:Ukuba unezixhobo zonyango ezifakwe ngaphakathi okanye ngaphandle komzimba wakho, ngokuqinisekileyo kufuneka uxelele ugqirha wakho ngaphambi kovavanyo. Ukuba zinesinyithi, ukuba zinanto enokuphazamisana namandla emagnethi, okanye ukuba azinakushenxiswa, usenokungakwazi ukwenza olu vavanyo. Ezinye zezi zixhobo ziquka:

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* Iivalvu zentliziyo ezingezizo ezendalo.

* Amalungu okwenziwa okanye amalungu okufakelwa enziwe ngentsimbi.

* Ii-defibrillators zentliziyo kunye nee-pacemakers.

* Ii-aneurysms ezithile zobuchopho.

* Iikhoyili ezithile zesinyithi ezifakwa ngaphakathi kwemithambo yegazi.

* Ii-implants ze-Cochlear.

* Iipali zokufaka amayeza ezifakelweyo.

* Izinto ezivuselela imithambo-luvo ezifakelweyo.

* Izibambo zamazinyo zesinyithi.

* Izikhonkwane zesinyithi, izikrufu, iipleyiti, iistenti okanye izixhasi zotyando.

* Iishunts ezinokucwangciswa.

Yintoni onokuyilindela ngexesha lovavanyo lwe-MEG?

Ngokuxhomekeke kwisizathu sovavanyo lwe-MEG, kunokubakho utshintsho oluncinci kwinkqubo yovavanyo. Ngokwesiqhelo, oku kwenzekayo:

1. Kuya kufuneka ukhuphe zonke izinto zesinyithi emzimbeni wakho uze unxibe ilokhwe yezonyango .

2. Iintsana nabantwana abancinci banokufuna ukunikwa i-sedation okanye i-anesthesia ngokubanzi ukubanceda bahlale bezinzile ngexesha lovavanyo lwe-MEG. Ukuba kunjalo, ityhubhu encinci ebizwa ngokuba yi-IV iya kufakwa emthanjeni osengalweni ukuze kunikwe iyeza.

3. Ukuqinisekisa ukuba intloko yakho ikwindawo eyiyo xa kuthelekiswa neenzwa ezikwisigcina-ntloko, ugqirha unokuncamathisela okwethutyana iikhoyili ezintathu okanye ezine ezincinci (`iikhoyili zokubeka`) entlokweni yakho kwiindawo ezintathu okanye ezine . Emva koko, baya kulinganisa iindawo zezi khoyili ngesixhobo esikhethekileyo `esifana nenduku`.

4. Ukuze asuse iimpawu ezincinci zemagnethi ezinokuthi zinamathele emzimbeni wakho kwindawo engqongileyo, ugqirha uza kuhambisa isixhobo esijikelezayo (esibizwa ngokuba yi-'degausser') phezu komzimba wakho.

5. Emva koko, uya kulaliswa etafileni yovavanyo enokususwa, okanye ubekwe kwisitulo esikhethekileyo esiqhagamshelwe kumatshini we-`(MEG)`.

6. Ugqirha uza kubeka isigcina-ntloko esineenzwa ze-`(MEG)` entloko yakho. Xa unxiba esi sigcina-ntloko, uya kuziva ungenalo 'uloyiko lokoyika'. Eyona nto ibalulekileyo kukuba ufake intloko yakho ngaphakathi kwesigcina-ntloko ukuze ingqondo yakho isondele kangangoko kwiinzwa zomatshini we-`(MEG)`.

7. Ngokuxhomekeke kwisizathu sovavanyo, ungacelwa ukuba ulale ungashukumi okanye ulale phantsi.Kubaluleke kakhulu ukuzama ukugcina intloko yakho ingashukumi ngexesha lovavanyo.

8. Ukuze kudweliswe iindawo zengqondo yakho ezivakalelwayo, uvavanyo lukucela ukuba wenze imisebenzi ethile. Umzekelo, ukufunda amagama kwiscreen, ukuphendula imibuzo, okanye ukucofa iqhosha ngokuphindaphindiweyo.

9. Ngamanye amaxesha, ugqirha angakunika umbane omncinci ukuze alinganise indlela ingqondo yakho esabela ngayo kuwo. Uza kukwenza uzive ngathi uyakhathazwa, kodwa akuyi kuba buhlungu.

10. Nje ukuba ugqirha abe nolwazi olufunekayo, uvavanyo lugqityiwe. Ingcali emva koko ihlalutya iingxelo.

Ngexesha lovavanyo, awuyi kuva naluphi na uvakalelo oluvela kumatshini we-MEG okanye uve naziphi na iintlungu. Kukho inkqubo ye-intercom enamacala amabini kunye nenkqubo yokujonga ividiyo kwigumbi, ngoko ungathetha nomntu owenza uvavanyo nangaliphi na ixesha, kwaye banokuthetha nawe.

Abanye oogqirha banokwenza i-EEG (electroencephalogram) okanye i-MRI (magnetic resonance imaging) kunye novavanyo lwe-MEG. Kwimeko enjalo, kunokongezwa amanye amanyathelo kwinkqubo.

Uvavanyo lwe-``(MEG)`` ludla ngokuthatha malunga neyure okanye ezimbini ukugqitywa.

Kwenzeka ntoni emva kovavanyo lwe-MEG?

Ukuba wena okanye umntwana wakho ninikwe i-sedation okanye i-anesthesia kuvavanyo , ugqirha uza kunijonga imizuzu engama-30 ukuya kwiiyure ezimbini emva kovavanyo ukuqinisekisa ukuba nichacha kakuhle. Kuya kufuneka umntu akuqhubele ekhaya.

Ngaphandle kokuba unikwe amayeza okuthomalalisa, akukho xesha likhethekileyo lokuchacha elifunekayo. Ungaqhubeka nemisebenzi yakho yesiqhelo.

Ngaba kukho naziphi na iingozi kuvavanyo lwe-MEG?

Ezi zezona ndaba zimnandi! Akukho mingcipheko ichazwe ngoku luvavanyo lwe-`(MEG)`. Ngoko ke akukho sizathu sokoyika.

Kuthatha ixesha elingakanani ukwazi iziphumo zovavanyo lwe-MEG?

Kungathatha iingcali iintsuku ezininzi, ngamanye amaxesha iiveki, ukuphonononga iziphumo zovavanyo lwe-MEG. Oku kungenxa yokuba oogqirha basebenzisa uvavanyo lwe-MEG ukucwangcisa utyando oluntsonkothileyo lobuchopho, olunokubandakanya iingcali ezininzi ezisebenzisanayo.

Nje ukuba benze isicwangciso, iqela lakho lezonyango liza kuxoxa nawe ngeziphumo kwaye lixoxe ngento ekufuneka yenziwe emva koko.

Yintoni umahluko phakathi kwe-MEG kunye ne-MRI?

Nangona zombini ezi zizilingo zobuchopho, kukho umahluko omncinci.

• I-MRI (magnetic resonance imaging) yengqondo isebenzisa imagnethi enkulu kunye nekhompyutha ukwenza imifanekiso yengqondo yakho ngokuqokelela ulwazi lwesakhiwo. Oko kukuthi, indlela ebukeka ngayo ingqondo kunye nendlela ezicwangciswe ngayo iindawo.
• I-MEG ibandakanya ukurekhoda amasimi emagnethi avela kwiiseli zemithambo-luvo (ii-neurons) engqondweni yakho usebenzisa amakhulu eenzwa ezikhethekileyo kunye nekhompyutha.Ezi ndawo zibonakala njengamaza obuchopho.

Oogqirha badla ngokudibanisa i-MRI kunye ne-MEG ukwenza inkqubo ebizwa ngokuba yi -Magnetic Source Imaging (MSI) . I-MSI inokwenza iimephu ezisebenzayo zomsebenzi wobuchopho.

I-MEG yahlukile nakwi -MRI esebenzayo (fMRI). I-fMRI ijonga utshintsho ekuhambeni kwegazi kwiindawo ezithile zobuchopho bakho xa usenza imisebenzi ethile. Zombini i-MEG kunye ne-fMRI zijonga umsebenzi wobuchopho, kodwa i-MEG ibonisa iindawo ezithile zomsebenzi. I-fMRI ibonisa iindawo ngokubanzi. Ukongeza, i-MEG ingcono ekuboniseni indlela umsebenzi wobuchopho otshintsha ngayo ngokuhamba kwexesha (iimpawu zexeshana).

Yintoni umahluko phakathi kwe-MEG kunye ne-EEG?

Umahluko wokuqala phakathi kwezi mvavanyo zimbini zokuxilonga ngulo:

• I-EEG (i-electroencephalography) irekhoda umsebenzi wombane wengqondo yakho.
• I-MEG irekhoda amasimi emagnethi engqondweni yakho (abangelwa ngumsebenzi wombane).

Omnye umahluko kukuba i-MEG inovelwano kakhulu kwaye ichanekile ekurekhodeni umsebenzi wobuchopho kune-EEG. Ukhakhayi lwakho kunye nolwelo lwe-cerebrospinal (CSF) zinokuphazamisa umsebenzi wombane orekhodwe yi-EEG. Nangona kunjalo, ezi zicubu aziphazamisi amasimi emagnethi. Oku kunika i-MEG "umfanekiso" ongcono wobuchopho bakho, okanye isisombululo sendawo . Oko kukuthi, inokukhomba iindawo zomsebenzi ongaqhelekanga.

Ngamanye amaxesha oogqirha benza i-EEG kunye ne-MEG ukuze baqokelele ulwazi oluthe kratya malunga nokuba umsebenzi wobuchopho uvela phi.

Umyalezo obalulekileyo kuwe.

Njengoko ubona, olu vavanyo, olubizwa ngokuba yiMagnetoencephalography (MEG), luvavanyo oluluncedo kakhulu, olungenabungozi, nolukhuselekileyo olunceda oogqirha ukuba babhale iindawo ezibuthathaka zobuchopho bakho baze babone indawo echanekileyo yezinto ezifana nokuxhuzula.

Ukuba une-``(MEG)`` uvavanyo kwaye uneenkxalabo okanye amathandabuzo ngalo, qiniseka ukuba ubuza ugqirha wakho. Bakhona ukuphendula imibuzo yakho kwaye bakuxhase. Musa ukoyika nantoni na!

I - MEG, i-Magnetoencephalography, uvavanyo lobuchopho, isifo sokuwa, ukuxhuzula, utyando lobuchopho, i-neurology