Magnetic resonance imaging (MRI) tekinoroji yakakosha pakupa nzira isingapindike yekuburitsa mifananidzo yakarurama yemukati memuviri wemunhu.Nekudaro, tekinoroji haina matambudziko ayo, kunyanya nezve kuchengetedzwa uye kushanda kwemaitiro.Chimwe chezvinhu zvinonyanya kukosha zveMRI kuchengetedza ndeyekudzivirira kwakakodzera, iyo inoshandisa zvinhu zvakadaifoil yemhangurakudzivirira kupindira kubva kunze.Muchikamu chino, tinokurukura kuti sei mhangura inoshandiswa muMRI uye zvakanakira sechinhu chekudzivirira.
Mhangura chinhu chakanakira MRI kudzivirira nekuda kwezvikonzero zvakawanda.Chekutanga, yakakwira conductivity inobvumira kuti inyatso kutora masaini emagetsi, kudzivirira zvishandiso kubva kune ruzha rwekunze.Chechipiri, mhangura inoumbwa uye inogadziriswa, saka inogona kugadzirwa nyore nyore kuva mapepa kana mapepa anogona kuiswa kumadziro, matenga uye pasi pemakamuri eMRI.Chechitatu, mhangura haisi-magnetic, zvinoreva kuti haipindiri neMRI's magnetic field, ichiita kuti ive chinhu chakanaka cheMRI kudzivirira.
Imwe yakakosha mukana wefoil yemhanguranokuti MRI kudzivirira ndiko kukwanisa kwayo kupa SF (radio frequency) shielding.SF shielding inobatsira kumisa magineti mafungu anoburitswa neMRI radio frequency coils kubva pakufamba muchivako chose, izvo zvinogona kukanganisa zvimwe zvigadzirwa zvemagetsi kana kuisa njodzi kune hutano kune vanhu vari munharaunda.Kuti unzwisise izvi, mhedzisiro yeredhiyo frequency pane chipenyu inofanirwa kutariswa.Kunyange zvazvo MRI inoshandisa mwaranzi isiri-ionizing inoonekwa seyakachengeteka, kuratidzwa kwenguva refu kune radiofrequency minda kunogona kuve neakaipa biological mhedzisiro.Ichi ndicho chikonzerofoil yemhangurainofanirwa kushandiswa kupa inoshanda uye inoshanda SF kudzivirira.
Muchidimbu, foil yemhangura chinhu chakakosha cheMRI kudzivirira uye inopa zvakati wandei zvakanakira.Iyo inofambisa, inogoneka, uye isiri-magnetic, ichiita kuti ive yakakodzera kutora masaini emagetsi pasina kukanganisa minda yeMRI.Uye zvakare, foil yemhangura inopa inoshanda SF kudzivirira iyo inobatsira kudzivirira masaisai emagetsi kubva mukupararira muchivako chose, kuderedza kupindirana nemidziyo yemagetsi uye kuderedza njodzi yehutano hwakaipa kubva mukuratidzwa kwenguva refu kweRF.MRI zvivako zvinofanira kuva nepamusoro-sorofoil yemhangurakudzivirira kuti ive nechokwadi chekuchengetedza murwere uye yakachengeteka uye yakavimbika diagnostic imaging mhinduro.
Nguva yekutumira: Kubvumbi-25-2023