Ngaba wena okanye umntu omaziyo unesifo esifana nesifo sokuwa? Okanye ngaba wakha wafuna ukwazi ukuba ziphi kanye kanye iindawo ezibalulekileyo zobuchopho ezilawula intetho kunye nokuhambahamba ngaphambi kokuba wenze utyando lobuchopho? Namhlanje sithetha ngovavanyo oluphambili kakhulu, olungenantlungu, nolukhuselekileyo olusetyenziswa ngoogqirha ngamaxesha anje. Lubizwa ngokuba yi-MEG scan.
Kalula nje, yintoni le MEG?
I-MEG, okanye iMagnetoencephalography, luvavanyo olulinganisa amandla emagnethi angabonakaliyo aveliswa ziimpawu zombane ezikhutshwa ziiseli zethu zengqondo. Ngokuchanekileyo, le yindlela yokubonisa umsebenzi wobuchopho bethu.
Eyona nto ingcono kukuba ayinazintlungu kwaye ayihlaseli. Oku kuthetha ukuba akukho naliti zisetyenziswayo, akukho kusikwa kwenziwayo, kwaye awuchaphazeleki yimitha yelanga, njengee-X-ray. I-MEG yeyona ndlela iphambili ehlabathini yokurekhoda nokuvavanya umsebenzi wobuchopho.
Kweziphi iimeko apho uvavanyo lwe-MEG lwenziwa khona?
Iingcali ze-neurologists kunye neengcali ze-neurosurgeon zisebenzisa olu vavanyo lwe-MEG ngezizathu ezibini eziphambili.
| Uvavanyo luza kusetyenziselwa nini | Inzuzo yayo |
|---|---|
| Kwisifo sokuwa | Oku kusetyenziselwa ukukhomba indawo echanekileyo engqondweni ebangela ukuxhuzula. Olu lwazi lubaluleke kakhulu ekucwangciseni utyando lwesifo sokuxhuzula. |
| Utyando lobuchopho | Ngaphambi kotyando, njengokususa ithumba lobuchopho, olu vavanyo lunceda ekuboniseni ngqo apho iindawo zengqondo ezilawula imisebenzi ebalulekileyo efana nokuhamba, intetho, umbono kunye nokuchukumisa zikhoyo. Oku kunokunciphisa umngcipheko wokonakala kwezi ndawo zibalulekileyo ngexesha lotyando. |
Ukongeza, i-MEG sisixhobo esibalulekileyo kuphando lwesayensi ukuze kufunyanwe ukuqonda okunzulu ngokusebenza kwengqondo yomntu.
Isebenza njani le matshini?
Kulula kakhulu. Ii-neurons ezikwingqondo yethu zinxibelelana ngokuvelisa ii-voltages ezincinci kakhulu zombane. Xa le mizila yombane ihamba, kwenziwa i-magnetic field ejikeleze zona.
Umatshini we-MEG usebenzisa ii-sensors ezingaphezu kwama-300 ezinovakalelo oluphezulu , ezibekwa kwisixhobo esifana nesigcina-ntloko osinxiba entloko yakho, ukuze zibone, zirekhode, kwaye zihlalutye la mandla emagnethi. Ezi sensors zinovakalelo olukhulu kangangokuba zinokuthatha nezona mandla zemagnethi zincinci ezivela kwiingqondo zethu. Ezi sensors zibizwa ngokuba zii-SQUIDs (izixhobo zokuphazamisa i-quantum).
Ezi sensors kunye nesoftware ekhethekileyo yekhompyutha zisebenza kunye ukurekhoda umsebenzi wobuchopho bakho nge-millisecond nge-millisecond, nokuba uhleli phantsi okanye wenza into ethile (umz., ujonge imifanekiso okanye ufunda amagama). Okokugqibela, olu lwazi ludibaniswa nomfanekiso wobuchopho bakho, oboniswa kwiscreen sekhompyutha njenge "map" ebonisa ukuba zeziphi iindawo zobuchopho bakho ezisebenzayo.
Ungazilungiselela njani uvavanyo lwe-MEG?
Ugqirha wakho uza kukunika nayiphi na imiyalelo ekhethekileyo oyifunayo ngaphambi kolu vavanyo.
- Ugqirha uza kukubuza ukuba kufuneka uyeke ukutya okanye ukusela okwethutyana ngaphambi kovavanyo.
- Baza kukunika iingcebiso malunga nokuba kufuneka wenze naluphi na utshintsho kumayeza owasebenzisayo.
- Musa ukunxiba izinto zokuthambisa ubuso ngomhla wovavanyo, kwaye musa ukusebenzisa ijeli okanye isitshizi kwiinwele zakho. Ezi zinto zinokuphazamisana neziphumo zovavanyo.
- Awunakuza nezinto zesinyithi kwigumbi lovavanyo. Oku kuthetha ukuba kufuneka ukhuphe naziphi na izinto zobucwebe, iiglasi, iiphini zeenwele, okanye iibra ezingaphantsi kocingo. Ukuba kuyimfuneko, isibhedlele siya kukunika ilokhwe ekhethekileyo yezonyango oza kuyinxiba.
Okubaluleke kakhulu: Qaphela iindawo zesinyithi emzimbeni wakho
Ukuba unezixhobo zonyango ezifakwe emzimbeni wakho ngokusisigxina okanye ngaphandle, ngokuqinisekileyo kufuneka uxelele ugqirha wakho ngazo ngaphambi kovavanyo. Ezinye izixhobo zinesinyithi kwaye zinokuphazamisana namandla emagnethi, ngoko usenokungakwazi ukwenza olu vavanyo.
Ukuba unayo nayiphi na kwezi zinto zilandelayo emzimbeni wakho, ungalibali ukuxelela ugqirha wakho ngayo.
| Izixhobo kunye neemeko ekufuneka ziqwalaselwe |
|---|
| - Iivalvu zentliziyo ezenziweyo |
| - Ii-pacemakers okanye ii-cardiac defibrillators |
| - Izixhobo zokuncedisa ukuva (ii-Cochlear implants) |
| - Izibambo zamazinyo zesinyithi |
| - Izikhonkwane zesinyithi, izikrufu, iipleyiti, iistenti, okanye izitapile ezifakwa emzimbeni emva kotyando |
| - Iichweba zokufaka amayeza ezifakelweyo |
| - Iikhoyili ezithile zesinyithi ezisetyenziselwa i-brain aneurysms |
| - Amalungu okwenziwa okanye amalungu okufakelwa enziwe ngentsimbi |
Kwenzeka ntoni ngexesha lovavanyo?
Indlela uvavanyo lwe-MEG olwenziwa ngayo inokwahluka kancinci ngokuxhomekeke kwisizathu salo, kodwa ngokuqhelekileyo luba ngolu hlobo.
1. Ukulungiselela: Uza kususa zonke izinto zesinyithi emzimbeni wakho uze unxibe ilokhwe yesibhedlele.
2. Kubantwana abancinci: Kubantwana abancinci, kusenokufuneka ukuba banike i-sedation okanye i-anesthesia ngokubanzi, njengoko kunokuba nzima ukuba bahlale benganyakazi ngexesha lovavanyo.
3. Indawo ebekwe kuyo intloko yakho: Linganisa indawo echanekileyo yentloko yakho xa kuthelekiswa nesigcina-ntloko, uze ufake iikhoyili ezintathu okanye ezine ezincinci zokubeka intloko ngeteyipu yexeshana kwiindawo ezintathu okanye ezine entlokweni yakho.
4. Ukususa iimpawu zemagnethi: Okulandelayo, isixhobo esijikelezayo esibizwa ngokuba yi-"degausser" sishukunyiswa emzimbeni wakho ukuze kususwe iimpawu zemagnethi ezingafunekiyo ezinokuba ziqokelelene kwindawo yomzimba wakho.
5. Ukuhlala phantsi ngexesha lovavanyo: Emva koko uya kuhlaliswa kwisitulo esikhethekileyo esiqhagamshelwe kumatshini we-MEG, okanye uya kuhlaliswa ebhedini.
6. Ukufaka isigcina-ntloko:Ngoku, isigcina-ntloko esinee-MEG sensors sibekwe entlokweni yakho. Oku kunciphisa umngcipheko we-claustrophobia. Ukuze ufumane iziphumo ezilungileyo, gcina intloko yakho ikufutshane nesigcina-ntloko kangangoko kunokwenzeka.
7. Ngexesha lovavanyo: Ngamanye amaxesha uya kucelwa ukuba uhlale phantsi, kwaye usenokulala. Kwi-brain scan, uya kucelwa ukuba ufunde amagama kwiscreen, uphendule imibuzo, okanye wenze imisebenzi emincinci, njengokucofa iqhosha. Ngamanye amaxesha, umnwe wakho unokunikwa isikhuthazo sombane esincinci ukulinganisa indlela ingqondo yakho esabela ngayo. Oku kunokuvakala ngathi kukukhafula kancinci, kodwa akubuhlungu.
8. Unxibelelwano: Igumbi lovavanyo line-intercom kunye nenkqubo yevidiyo, ngoko ungathetha nengcali yovavanyo nangaliphi na ixesha.
Lonke olu vavanyo luthatha malunga neyure enye okanye ezimbini.
Kwenzeka ntoni emva kovavanyo?
Ukuba wena okanye umntwana wakho ninikwe iyeza lokuthomalalisa iintlungu, abasebenzi bezonyango baza kunijonga kangangesiqingatha seyure ukuya kwiiyure ezimbini. Uza kufuna umntu oza kukunceda ufike ekhaya.
Ukuba awuthomalalisi, akukho ngxaki. Ungaqhubeka nemisebenzi yakho yesiqhelo kwangoko emva kokuba uvavanyo luphelile.
Akukho mingcipheko eyaziwayo enxulumene novavanyo lwe-MEG. Luvavanyo olukhuselekileyo kakhulu.
Yintoni umahluko phakathi kwe-MEG, i-MRI kunye ne-EEG?
Nangona zonke ezi mvavanyo zintathu zenziwa engqondweni, ulwazi abalulinganisayo nabasinika lona lwahlukile.
| Uvavanyo | Yintoni elinganiswayo? | Eyona nto iphambili |
|---|---|---|
| I-MEG | Amasimi emagnethi aveliswa ngumsebenzi wombane engqondweni. | Indawo echanekileyo kunye nexesha lokusebenza kobuchopho kuboniswa ngokuchanekileyo okuphezulu. Akukho siphazamiso sesignali esivela kukhakhayi. |
| I-MRI (Umfanekiso weMagnetic Resonance) | Ulwakhiwo lobuchopho kunye nezicubu zomzimba . | Inika umfanekiso ocacileyo wokuba ingqondo ijongeka njani, iindawo zayo, iithumba, njl. Ayilinganisi ukusebenza. |
| I-EEG (i-Electroencephalogram) | Umsebenzi wombane wengqondo. | Imiqondiso yombane inokuphazamiseka kancinci njengoko idlula kwikhakayi nakwezinye izicubu, kwaye ayichanekanga njenge-MEG. |
Ngamanye amaxesha oogqirha badibanisa ulwazi oluvela kuvavanyo lwe-MEG kunye ne-MRI ukwenza imephu yokusebenza kobuchopho. Oku kubizwa ngokuba yi-MSI (Magnetic Source Imaging).
Umyalezo Wokuya Ekhaya
- I-MEG luvavanyo olungenazintlungu, olungenamisebe, nolukhuselekileyo kakhulu olubonisa ukusebenza kobuchopho.
- Oku kusetyenziswa kakhulu ukukhomba indawo echanekileyo yokuxhuzula kunye nokucwangcisa utyando lobuchopho .
- Kubalulekile ukuba wazise ugqirha ngazo naziphi na izixhobo zesinyithi ezifakwe emzimbeni wakho ngaphambi kovavanyo.
- Uvavanyo lwe-MEG lunamandla ngakumbi okuchonga ngokuchanekileyo indawo yokusebenza kwengqondo kune-EEG.
- Ukuba ugqirha wakho ucebisa olu vavanyo, ungoyiki ukubuza ugqirha wakho nayiphi na imibuzo onayo.
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