Chaizvo, iyo inoshandiswa sei
Iko MUGA inoongorora (MUtiti Gated Acquisition scan) chiratidzo chisingaitiki chinoshandiswa kuongorora basa romwoyo. MUGA scan inobudisa chimiro chinofadza chemoyo unorova, uye kubva mumufananidzo uyu zvinhu zvinokosha zvakakosha zvinogona kugadziriswa nezvehutano hwemaodzanyemba uye kurudyi ma ventricles (makamuri makuru ekuputira mwoyo). Iko MUGA kuongorora inonyanya kunaka pakupa kuverenga kwekudzidzira kushandiswa kwemoyo.
Iko MUGA Scan Inoitwa Sei?
Kana uine MUGA scan, zvishoma zvishoma zve Technetium 99 (chinhu chinokonzerwa nemasasa) inopindwa muropa rako. The Technetium 99 inonamatira masero ako matsvuku eropa, uye inopararira muropa rako. Iwe uchazoiswa pasi pekamera yakakosha (a gamma camera), iyo inogona kuona kuti mazinga emvura yakadzika anopiwa ne Technetium-akanyorwa mabhii matsvuku. Nemhaka yokuti masero matsvuku eropa anozadza makamuri emwoyo, iyo gamma kamera inokwanisa kubudisa izvo zvinonyanya kufuratirwa mumoyo wekurova mwoyo. Iyi digital "mafirimu" inogona kuongororwa nehutano hwakasiyana-siyana hwemakombiyuta, iyo inogona kugadzirisa ruzivo rwakakosha ruzhinji pamusoro pehutano hwemoyo wako wose.
Chii Chingadzidza Kubva kuMUGA Scan?
Zvimwe zvinokosha zvinokosha zvebasa remwoyo zvinogona kuyerwa kubva paMUGA scan. Kana munhu aine chirwere chemwoyo MUGA scan inogona kureva chikamu chemuviri wemutsipa chiri kushanda zvisiri izvo.
Nekunzvimbo dzepamwoyo yemusana wekushungurudza kwemasisita, chirwere cheMUGA chinopa chiremba zvinonyanya kukosha pamusoro pokuti maronary coronary angave akavharwa kana kuti akadziviswa zvishoma neAristrosclerosis .
Iko MUGA kuongorora kunobatsirawo pakuyera basa rose remoyo. Izvi zvinonyanya kukosha kana chero dhigirii yemardidiyoyopathy iripo.
iyo MUGA scan inopa nzira yakarurama uye inogadziriswa yekuenzanisa uye kuongorora "chikamu chakatsva" chemhepo yemhepo. Chikamu chiduku chinokonzera ejection (LVEF) chikamu chakanaka chekushanda kwemwoyo, uye inobatsira pakubatsira vanachiremba kuongorora nekubata vanhu vane mwoyo yekukundikana .
Ndeipi Iyo MUGA Inoshandisa Zvimwe Zvinobatsira Kupfuura Mimwe Miedzo Yemoyo?
Pane humwe huviri hukuru hunobatsira hweMUGA kuongorora pane dzimwe nzira (zvakadai se echocardiogram ) yekuongorora basa remwoyo.
Chokutanga, LVEF yakawanikwa neAUGA scan yakarurama kwazvo, uye inoonekwa seyo yakarurama kupfuura LVEF zviyero zvakagadzirwa nemamwe marudzi ekuongorora kwepfungwa.
Chechipiri, iyo LVEF yakayerwa nechechi MUGA scan ejection fraction yakanyanya kubereka. Izvi zvinoreva kuti kana mushure mekunge MUGA inotarisa chiyero muparidzi muLVEF, mutsauko iwoyo unogona kuratidza kuchinja kwechokwadi mumamiriro emwoyo (uye haisi chimiro chekuyera kwakakwana). Neimwe mimwe miedzo, kuchinja kwekudzokorora LVEF miyero kunowanzove yakakura.
Izvozvi zvikamu zviviri zvinoita kuti MUGA iwedzere kunyanya kubetsera pakuona kuchinja kusina kumira mukati memunhu wemwoyo kushanda munguva.
Muenzaniso wakafanana wekudzokidzwa kweMUGA kuongorora kunobatsira kuve kuongorora kushanda kwomunhu mukati memunhu panguva ye chemotherapy yekenza.
Imwe chemotherapeutic agents ( Adriamycin ndiyo inonyanya kuzivikanwa) inogona kunge yakasvibisa kumusana wemwoyo.
Iko MUGA inoona yakajeka uye inogadziriswa zvakakwana kuti ione kusingaoneki, kushanduka kwekare mumoyo wekuita iyo inogona kuraswa nyore nyore nedzimwe nzira. Nokuenzanisa LVEF ne periodic MUGA inoongorora, oncologist inogona kuona kana yakachengeteka kuramba iine chemotherapy, kana kuti mamwe mishonga inofanira kumira.
Kukanganisa kweMUGA Scan
Sezvimwe chirwere chekuongorora chinoshandiswa mukurapa, kune zvimwe zvingakanganiswa kuMUGA scan.
Nemhaka yekuti MUGA scan inoda kushandiswa kwezvinhu zvakasvibiswa nemhepo, munhu ane scan iyi anoratidzirwa kune zvishoma zvemirasi.
Chiyero chemayera anosangana ne MUGA scan anenge anenge 6.2 mSv, iyo inowanzo kaviri inowanzobuda maharai munhu anogamuchira mugore rimwe chete, uye kanenge ka10 mazhizha akawanikwa nemammogram .
Uyezve, kururamisa kweLVEF yakawanikwa neAUGA scan kunowedzera kuderedzwa nevarwere vane mafungiro emwoyo asina kukodzera, kunyanya kushaya firati .
Uyezve, inonzi MUGA inowanzoita kuti irege kupa ruzivo rwakanyanya pamusoro pebasa remwoyo yemagetsi, kana kuti pane ventricular hypertrophy . Echocardiogram, zvakasiyana, yakakosha kuwana kuwana ruzivo rwakadai. Saka, kune vanhu vazhinji vane zvinetso zvemoyo, MUGA scan inofanira kushandiswa mukubatana nedzimwe mimwe miviri yemoyo kuti iwane zvakazara mufananidzo sezvinobvira mumamiriro ehupenyu hwevanhu.
> Sources:
> Hendel RC, Berman DS, Di Carli MF, et al. ACCF / ASNC / ACR / AHA / ASE / SCCT / SCMR / SNM 2009 Kushandisa Zvakakodzera Mazano eCardiac Radionuclide Kufananidza: Nhoroondo yeAmerican College of Cardiology Foundation Yakakodzera Kushandisa Criteria Task Force, American Society of Nuclear Cardiology, American College of Radiology, American Heart Association, American Society of Echocardiography, Society of Cardiovascular Computed Tomography, Society for Cardiovascular Magnetic Resonance, uye Society of Nuclear Medicine. Circulation 2009; 119: e561.