Magnetic resonance angiography

Magnetic resonance angiography (MRA) ndeye MRI bvunzo yemidziyo yeropa. Kusiyana neyechinyakare angiography iyo inosanganisira kuisa chubhu (catheter) mumuviri, MRA haina kuvhuvhuta.

Unogona kukumbirwa kupfeka hanzu yechipatara. Iwe unogona zvakare kupfeka zvipfeko zvisina zvekusunga simbi (senge juzi uye t-sheti). Dzimwe mhando dzesimbi dzinogona kukonzeresa mifananidzo.

Iwe unorara patafura yakamanikana, iyo inotsvedza kupinda mune yakakura tunnel-yakaita scanner.

Mimwe bvunzo inoda chaiyo dhayi (musiyano). Kazhinji kazhinji, dhayi rinopihwa usati waedzwa kuburikidza netsinga (IV) iri muruoko rwako kana ruoko. Iyo dhayi inobatsira iyo radiologist kuona dzimwe nzvimbo zvakajeka.

Munguva yeMRI, munhu anoshandisa muchina anozokutarisa kubva kune imwe kamuri. Muedzo unogona kutora awa rimwe kana kudarika.

Iwe unogona kubvunzwa kuti usadye kana kunwa chero chinhu kwemaawa mana kusvika matanhatu usati scan.

Udza mupi wako wezvehutano kana iwe uchitya nzvimbo dzepedyo (une claustrophobia). Unogona kupihwa mushonga wekukubatsira kuti unzwe kurara uye usanyanya kunetseka Wako mupi anogona kuratidza "yakavhurika" MRI. MuMRI yakavhurika, muchina hauna padhuze nemuviri.

Usati waedzwa, udza mupi wako kana iwe uine:

• Brain aneurysm clip
• Chakagadzirwa moyo vharuvhu
• Mwoyo defibrillator kana pacemaker
• Nzeve yemukati (cochlear) implants
• Insulin kana chemotherapy chiteshi
• Intrauterine chishandiso (IUD)
• Chirwere cheitsvo kana dialysis (unogona kusakwanisa kugamuchira musiyano)
• Neurostimulator
• Ichangobva kuiswa majoini ekugadzira
• Vascular stent
• Inoshanda nesheet simbi munguva yakapfuura (ungangoda bvunzo kuti utarise zvidimbu zvesimbi mumaziso ako)

Nekuti iyo MRI ine magineti akasimba, zvinhu zvesimbi hazvitenderwe kupinda mukamuri ine MRI scanner. Dzivisa kutakura zvinhu zvakadai se:

• Pocketknives, zvinyoreso, uye magirazi emaziso
• Mawachi, makadhi echikwereti, zvishongo, uye rubatsiro rwekunzwa
• Mvere dzemvere, simbi zipi, mapini, uye zvimwe zvakafanana zvinhu
• Anobviswa mazino anodyara

Bvunzo ye MRA inokonzeresa kurwadziwa. Kana uine matambudziko ekurara wakarara kana kutya zvakanyanya, unogona kupihwa mushonga (sedative) wekukuzorodza. Kufamba zvakanyanya kunogona kukanganisa mifananidzo uye kukonzera zvikanganiso.

Tafura yacho inogona kunge yakaoma kana kutonhora, asi iwe unogona kukumbira gumbeze kana mutsago. Muchina unoburitsa ruzha rukuru uye ruzha kana ichivhurwa. Iwe unogona kupfeka nzeve plugs kubatsira kudzikisa ruzha.

Intercom iri mumba inokutendera kuti utaure nemumwe munhu chero nguva. Mamwe ma scanner ane materevhizheni uye mahedhifoni akakosha aunogona kushandisa kubatsira nguva kupfuura.

Iko hakuna nguva yekudzoreredza, kunze kwekunge iwe ukapihwa mushonga wekuzorora.

MRA inoshandiswa kutarisa tsinga dzeropa munzvimbo dzese dzemuviri. Muedzo unogona kuitirwa musoro, moyo, dumbu, mapapu, itsvo, uye makumbo.

Inogona kushandiswa kuongorora kana kuongorora mamiriro akadai se:

• Arterial aneurysm (kuwedzera zvisina kujairika kana kubhaluni kwechikamu chetsinga nekuda kwekushaya simba mumadziro eropa remudziyo)
• Aortic coarctation
• Aortic kupatsanura
• Kurohwa
• Carotid tsinga chirwere
• Atherosclerosis yemaoko kana makumbo
• Chirwere chemwoyo, kusanganisira chirwere chepfungwa chepfungwa
• Mesenteric artery ischemia
• Renal artery stenosis (kudzikira kwemitsipa yeropa muitsvo)

Mhedzisiro mhedzisiro zvinoreva kuti tsinga dzeropa hadziratidze chero zviratidzo zvekudzikira kana kuvhara.

Mhedzisiro isina kujairika inoratidza dambudziko neimwe kana yakawanda midziyo yeropa. Izvi zvinogona kuratidza:

• Atherosclerosis
• Kushungurudzika
• Kuberekwa chirwere
• Imwe yevascular mamiriro

MRA inowanzo chengeteka. Iyo haina kushandisa radiation. Parizvino, hapana mhedzisiro kubva kumagineti minda uye masaisai eredhiyo akataurwa.

Rudzi rwakanyanya kujairika rwekusiyanisa rinoshandiswa rine gadolinium. Zvakachengeteka chaizvo. Allergic reaction kune icho chinhu kashoma kuitika. Nekudaro, gadolinium inogona kukuvadza kune vanhu vane matambudziko eitsvo ayo anoda dialysis. Kana uine matambudziko etsvo, ndapota udza mupi wako usati waedzwa.

Iwo akasimba magineti maseru akagadzirwa panguva yeMRI anogona kukonzera kugadzikana kwemoyo uye zvimwe zvinodyiwa kuti zvisashande zvakare. Izvo zvinogona zvakare kukonzera chidimbu chesimbi mukati memuviri wako kufamba kana kuchinja.

MRA; Angiography - remagineti resonance

• MRI inoongorora

Muvezi JP, Litt H, Gowda M. Magnetic resonance imaging uye arteriography. Mune: Sidawy AN, Perler BA, eds. Rutherford Kuvhiya kweVascular uye Endovascular Therapy. 9th ed. Philadelphia, PA: Elsevier; 2019: chitsiko 28.

Kwong RY. Mwoyo yemagineti resonance imaging. Mune: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, eds. Chirwere Chemwoyo cheBraunwald: A Chinyorwa cheCardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier; 2019: chits. 17.