Zomwe ziri, momwe zimagwiritsidwira ntchito
Kusanthula kwa MUGA (kujambulidwa kwa GT MUltiple Gated) ndiyesero losavomerezeka lomwe limagwiritsidwa ntchito pofufuza ntchito ya mtima. Kujambula kwa MUGA kumapanga chithunzithunzi cha mtima wakugunda, ndipo kuchokera ku chithunzi ichi pali zinthu zingapo zofunika kwambiri zomwe zingadziŵike za thanzi la ma ventricles omwe ali kumanzere ndi olondola. Kusanthula kwa MUGA ndibwino makamaka pakuwerenga kuwerenga kwa mtima wonse.
Kodi Kusintha kwa MUGA Kuchita Bwanji?
Ngati muli ndi mayeso a MUGA, kachilombo kakang'ono ka Technetium 99 (mankhwala owopsa) amalowetsedwa m'magazi anu. The Technetium 99 imamatira maselo ofiira a magazi, ndipo imazungulira m'magazi anu. Mukatero mudzaikidwa pansi pa kamera yapadera (kamera ya gamma), yomwe imatha kuzindikira kuti miyendo yapamwamba imaperekedwa ndi maselo ofiira a Technetium. Chifukwa maselo ofiira amadzaza zipinda za mtima, kamera ya gamma ikhoza kutulutsa chomwe chiri kwenikweni filimu ya mtima wokonda. "Sefilimu" iyi yamakono ingathe kulinganiziridwa ndi machitidwe osiyanasiyana a makompyuta, omwe angathe kudziwa zambiri zothandiza zokhudza moyo wanu wonse.
Kodi Mungaphunzire Chiyani ku MUGA Scan?
Zambiri zofunikira za ntchito ya mtima zingakhoze kuyesedwa kuchokera ku kuyesa kwa MUGA. Ngati munthu wayamba kudwala matenda a mtima wa MUGA akhoza kudziwa kuti gawo la mtima wa minofu likugwira ntchito molakwika.
Pogwiritsa ntchito minofu ya mtima, minofu ya MUGA imapereka chidziwitso chofunika kwambiri kwa dokotala kuti mitsempha yamtunduwu ingatheke kapena yotsekedwa ndi matenda a satanaclerosis .
Kuyezetsa kwa MUGA ndibwino kwambiri poyesa ntchito yonse ya mtima. Izi ndizofunikira makamaka ngati paliponse digiri yodetsa mtima yowonongeka .
Kuwunika kwa MUGA kumapereka njira yolondola komanso yobweretsera njira yoyeza ndi kuyang'anira "kachigawo kakang'ono ka ejection" ka mitsempha ya mtima. Chigawo chotsalira cha ventricular ejection (LVEF) ndiyeso yabwino kwambiri ya ntchito ya mtima wonse, ndipo imathandiza kwambiri madokotala kufufuza ndi kuchiza anthu omwe ali ndi mtima wolephera .
Kodi MTSI Ikuphatikiza Zambiri Kuposa Zowonjezera Zina za Mtima?
Pali madalitso awiri omwe MUGA imayesa pa njira zina (monga echocardiogram ) pofuna kuyang'ana ntchito ya mtima.
Choyamba, LVEF yokhala ndi kanthini ya MUGA ndi yolondola kwambiri, ndipo imayesedwa yolondola kuposa mayendedwe a LVEF omwe amapezeka ndi mayesero ena a mtima.
Chachiwiri, LVEF yoyezedwa ndi kachigawo kakang'ono ka EUGE scan ejection ndi reproducible. Izi zikutanthauza kuti ngati MUGA yotsatira ikuyesa kusiyana pakati pa LVEF, kusiyana kumeneku kungakhale kusonyeza kusintha kwenikweni pamkhalidwe wa mtima (ndipo si chidziwitso cha chiyeso cholakwika). Ndi mayesero ena, kusiyana kwa mobwerezabwereza LVEF miyeso kumawoneka kwakukulu.
Zinthu ziwirizi zimapangitsa kuunika kwa MUGA kukhala kopindulitsa makamaka pozindikira kusintha kosasunthika mu ntchito ya munthu m'kupita kwa nthawi.
Chitsanzo chodziŵika cha kawirikawiri MUGA kufufuza ndi kothandiza kudzakhala kuyesa ntchito ya munthu pamtundu wa chemotherapy wa khansa.
Mitundu ina ya chemotherapeutic ( Adriamycin yomwe ndi yotchuka kwambiri) ingakhale yoopsa kwambiri kwa minofu ya mtima.
Kusanthula kwa MUGA kuli kolondola komanso kubwezeretsedwa mokwanira kuti azindikire kusinthasintha, kusintha koyambirira kwa ntchito ya mtima yomwe ikhoza kusoweka mosavuta ndi njira zina. Poyesa LVEF ndi ma periodic MUGA, ovomerezeka angadziwe ngati ndibwino kuti apitirize ndi chemotherapy, kapena ngati mankhwala ena ayenela kuimitsidwa.
Zoperewera za MUGA Scan
Mofanana ndi mayesero alionse ogwiritsira ntchito mankhwala, palinso zovuta zina zomwe zimayesedwa pa MUGA.
Chifukwa kuthandizira kwa MUGA kumafuna kugwiritsa ntchito mankhwala othandizira mavitamini, munthu amene ali ndi kanthiniyi amawonekera pochepa.
Kuchuluka kwa ma radiation opangidwa ndi kanthini ya MUGA ndi pafupifupi 6.2 mSv, yomwe imakhala pafupifupi maulendo awiri omwe amapezeka mumtunda umodzi, ndipo nthawi pafupifupi 10 ma radiation omwe amapezeka ndi mammogram .
Kuwonjezera apo, kulondola kwa LVEF komwe kunapezedwa ndi kuthandizira kwa MUGA kumawongolera kuchepetsedwa kwa odwala omwe ali ndi mtima wosasinthasintha, makamaka opaleshoni ya atrial .
Komanso, kuyesa kwa MUGA kawirikawiri sikupereka zambiri zokhudza ntchito ya valves yamtima, kapena pali ventricular hypertrophy . Chombochi, mosiyana, ndicho chabwino kwambiri kuti mupeze zambiri monga izi. Choncho, kwa anthu ambiri omwe ali ndi vuto la mtima, maganizo a MUGA ayenera kugwiritsidwa ntchito pamodzi ndi mayesero ena a mtima kuti apeze chithunzi chokwanira momwe chikhalidwe cha munthu chimakhalira.
> Zotsatira:
> Hendel RC, Berman DS, Di Carli MF, ndi al. ACCF / ASNC / ACR / AHA / ASE / SCCT / SCMR / SNM 2009 Zopindulitsa Zogwiritsira Ntchito Zopangira Mafilimu a Radionuclide a Cardiac: Lipoti la American College of Cardiology Foundation Criteria Force 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, ndi Society of Nuclear Medicine. Circulation 2009; 119: e561.