Umahluko phakathi kwe-CT Scans kunye ne-MRIs: Indlela esebenza ngayo kunye nento abayibonisayo

I-CT kunye ne-MRI zisebenzisa iindlela ezahlukeneyo zokubonisa izinto ezahlukeneyo - akukho nto "ingcono" kunomnye.

Ezinye iingozi okanye iimeko zingabonwa ngeso lenyama. Abanye bafuna ukuqonda okunzulu.

Ukuba umboneleli wakho wezempilo ukrokrela imeko efana nokopha kwangaphakathi, isisu, okanye umonakalo wemisipha, banokuyalela i-CT scan okanye i-MRI.

Ukukhetha ukuba usebenzise i-CT scan okanye i-MRI ixhomekeke kumboneleli wakho wezempilo, ubukhulu becala ngokusekelwe kwinto abakrokrela ukuba baya kuyifumana.

Isebenza njani i-CT kunye ne-MRI? Yeyiphi eyona ilungele ntoni? Makhe sihlolisise.

I-CT scan, emfutshane kwi-computed tomography scan, isebenza njengomatshini we-X-ray we-3D. I-CT scanner isebenzisa i-X-reyi edlula kwisigulana ukuya kwi-detector ngelixa ijikeleza isigulane. Ifota imifanekiso emininzi, ethi emva koko ikhompyuter idibane ukuze ivelise umfanekiso we-3D wesigulana. Le mifanekiso inokuguqulwa ngeendlela ezahlukeneyo ukufumana iimbono zangaphakathi zomzimba.

I-X-reyi yesiko inokunika umboneleli wakho ukujonga indawo ebiyimifanekiso. Yifoto engatshintshiyo.

Kodwa unokujonga kwimifanekiso ye-CT ukuze ufumane imboniselo yeso lentaka kwindawo ebifanekiselwe kuyo. Okanye ujikeleze ukujonga ukusuka phambili ukuya ngasemva okanye icala ukuya kwelinye. Ungajonga umaleko ongaphandle wendawo. Okanye usondeze nzulu ngaphakathi kwelungu lomzimba elifuziweyo.

CT Scan: Ijongeka njani?

Ukufumana i-CT scan kufuneka ibe yinkqubo ekhawulezayo nengenabuhlungu. Ungqengqe etafileni ehamba kancinane kwiskena seringi. Ngokuxhomekeke kwiimfuno zomboneleli wakho wezempilo, usenokufuna idayi ezifakwa emthanjeni. Iskena ngasinye sithatha ngaphantsi komzuzu.

CT scan: Yenzelwe ntoni?

Ngenxa yokuba ii-CT scanners zisebenzisa ii-X-reyi, zinokubonisa izinto ezifanayo neze-X-reyi, kodwa ngokuchaneka ngakumbi. I-X-ray yimbonakalo ecaba yendawo yokucinga, ngelixa i-CT inokubonelela ngomfanekiso opheleleyo kunye nonzulu.

I-CT scans isetyenziselwa ukujonga izinto ezifana nalezi: Amathambo., Amatye, Igazi, Amalungu, Imiphunga, Amanqanaba omhlaza, iimeko zikaxakeka zesisu.

I-CT scans ingasetyenziselwa ukujonga izinto iMRI engaziboni kakuhle, njengemiphunga, igazi kunye namathumbu.

I-CT scan: Iingozi ezinokwenzeka

Eyona nkxalabo inkulu abanye abantu abanayo nge-CT scans (kunye ne-X-reyi kulo mbandela) kukwazi ukuba sesichengeni ngemitha.

Ezinye iingcali ziye zacebisa ukuba imitha ye-ionizing ekhutshwa yi-CT scans inokunyusa kancinane ingozi yomhlaza kwabanye abantu. Kodwa eyona mingcipheko iyaphikiswa. IFood and Drug Administration ithi ngokusekelwe kulwazi lwangoku lwenzululwazi, umngcipheko wokuba nomhlaza ophuma kwimitha ye-CT “akuqinisekwanga ngokwezibalo.”

Noko ke, ngenxa yeengozi ezinokubakho zemitha ye-CT, abafazi abakhulelweyo ngokuqhelekileyo abafanelekanga kwi-CT scans ngaphandle kokuba kuyimfuneko.

Ngamanye amaxesha, ababoneleli bezempilo banokugqiba ekubeni basebenzise i-MRI endaweni ye-CT ukunciphisa umngcipheko wokuvezwa kwemitha. Oku kuyinyani ngakumbi kubantu abaneemeko zempilo ezifuna imijikelo emininzi yomfanekiso ngexesha elide.

I-MRI

I-MRI imele i-magnetic resonance imaging. Ngamafutshane, i-MRI isebenzisa imagnethi kunye namaza erediyo ukwenza imifanekiso ngaphakathi emzimbeni wakho.

Indlela echanekileyo esebenza ngayo ibandakanya isifundo eside sefiziksi. Kodwa ngamafutshane, ifana nale: Imizimba yethu inamanzi amaninzi, oko kukuthi, i-H20. I-H kwi-H20 imele i-hydrogen. I-Hydrogen iqulethe iiproton - iincinci ezihlanjwe kakuhle. Ngokuqhelekileyo, ezi protons zijikeleza kumacala ahlukeneyo. Kodwa xa bedibana nomazibuthe, njengakumatshini weMRI, ezi protons zitsalwa ngakwimagnethi kwaye ziqalise ukufola.

I-MRI: Ingaba kunjani?

I-MRI ngumatshini we-tubular. Ukuskena okuqhelekileyo kweMRI kuthatha malunga nemizuzu engama-30 ukuya kwengama-50, kwaye kufuneka uhlale ungashukumi ngexesha lenkqubo. Umatshini unokungxola, yaye abanye abantu banokungenelwa ngokufaka ii-earplugs okanye ukusebenzisa i-headphones ukuze baphulaphule umculo ngexesha lokuskena. Ngokuxhomekeke kwiimfuno zomboneleli wakho, banokusebenzisa iidayi ezifakwa emthanjeni.

MRI: Yenzelwe ntoni?

I-MRI ilungile kakhulu ekwahluleni phakathi kwezicubu. Ngokomzekelo, ababoneleli banokusebenzisa i-CT yomzimba wonke ukujonga amathumba. Emva koko, i-MRI yenziwa ukuze iqonde ngakumbi naziphi na izixuku ezifunyenwe kwi-CT.

Umboneleli wakho unokusebenzisa i-MRI ukujonga umonakalo odibeneyo kunye nomonakalo we-nerve.

Eminye imithambo-luvo inokubonwa ngeMRI, kwaye unokubona ukuba kukho umonakalo okanye ukudumba kwimithambo-luvo kwiindawo ezithile zomzimba. Asikwazi ukubona i-nerve ngqo kwi-CT P scan. Kwi-CT, sinokubona ithambo elijikeleze i-nerve okanye i-tissue ejikeleze i-nerve ukuze sibone ukuba banayo nayiphi na impembelelo kwindawo esilindele ukuba i-nerve ibe kuyo. Kodwa ngokujonga ngokuthe ngqo kwimithambo-luvo, iMRI luvavanyo olungcono.

I-MRIs ayilunganga kangako ekujongeni ezinye izinto, njengamathambo, igazi, imiphunga kunye namathumbu. Gcina ukhumbule ukuba i-MRI ixhomekeke ngokuyinxalenye ekusebenziseni imagnethi ukuchaphazela i-hydrogen emanzini emzimbeni. Ngenxa yoko, izinto ezixineneyo ezifana namatye ezintso namathambo azibonakali. Ayinakwenziwa nantoni na ezaliswe ngumoya, njengemiphunga yakho.

I-MRI: Umngcipheko onokubakho

Nangona i-MRI ingaba yindlela engcono yokujonga izakhiwo ezithile emzimbeni, akusiyo wonke umntu.

Ukuba uneentlobo ezithile zetsimbi emzimbeni wakho, i-MRI ayinakwenziwa. Oku kungenxa yokuba i-MRI ingumzibuthe, ngoko inokuphazamisana nokufakelwa kwentsimbi ethile. Ezi ziquka ezinye iipacemakers, i-defibrillators okanye izixhobo ze-shunt.

Izinyithi ezifana nokutshintshwa kwamalungu ngokuqhelekileyo zi-MR-zikhuselekile. Kodwa ngaphambi kokuba ufumane i-MRI scan, qiniseka ukuba umboneleli wakho uyazi naziphi na izinyithi emzimbeni wakho.

Ukongeza, uvavanyo lwe-MRI lufuna ukuba uhlale uthule ixesha elithile, apho abanye abantu abanakukwazi ukunyamezela. Kwabanye, uhlobo oluvaliweyo lomatshini we-MRI lunokubangela ixhala okanye i-claustrophobia, eyenza umfanekiso ube nzima kakhulu.

Ngaba enye ibhetele kunomnye?

I-CT kunye ne-MRI azihlali zingcono, ngumcimbi wento oyifunayo kunye nokuba ukunyamezela kangakanani zombini. Amaxesha amaninzi, abantu bacinga ukuba omnye ungcono kunomnye. Kodwa ngokwenene kuxhomekeke ekubeni yintoni na umbuzo kagqirha wakho.

Undoqo: Enoba umboneleli wakho wezempilo uyala iCT okanye iMRI, injongo kukuqonda okwenzekayo emzimbeni wakho ukuze akunike olona nyango lulungileyo.

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Njengoko sonke siyazi, ukuphuhliswa kwemboni yezobuchwephesha zonyango ayinakuhlukaniswa nokuphuhliswa koluhlu lwezixhobo zonyango - ii-injection ze-agent echaseneyo kunye nezinto ezixhasayo - ezisetyenziswa kakhulu kule ndawo. E-China, edume ngoshishino lwayo lokuvelisa, baninzi abavelisi abadumileyo ekhaya nakwamanye amazwe ngokuveliswa kwezixhobo zonyango zonyango, kuquka.LnkMed. Ukusukela ekusekweni kwayo, i-LnkMed ibigxile kwintsimi yee-ejenti zokuchasa ngoxinzelelo oluphezulu. Iqela lobunjineli be-LnkMed likhokelwa yi-Ph.D. uneminyaka engaphezu kweshumi yamava kwaye uzibandakanye nzulu kuphando nophuhliso. Phantsi kokhokelo lwakhe, iCT isitofu sentloko enye,CT isitofu sentloko kabini,Isitofu se-agent ye-MRI yokuchasana, kwayeI-Angiography yoxinzelelo oluphezulu lwe-ejenti yokuchasaziyilwe ngezi mpawu: umzimba owomeleleyo noxineneyo, ujongano olufanelekileyo nolukrelekrele lokusebenza, imisebenzi epheleleyo, ukhuseleko oluphezulu, kunye noyilo oluhlala ixesha elide. Sinokubonelela ngeesirinji kunye netyhubhu ehambelana nezo mpawu zidumileyo ze-CT, iMRI, ii-injection ze-DSA Ngesimo sabo sengqondo esinyanisekileyo kunye namandla obuchwephesha, bonke abasebenzi be-LnkMed bayakumema ngokunyanisekileyo ukuba uze uhlolisise iimarike ezininzi kunye.