Ukuskena kwenhliziyo kwe-PET

I-heart positron emission tomography (PET) scan ukuhlolwa kwe-imaging okusebenzisa into enemisebe ebizwa nge-tracer ukufuna izifo noma ukugeleza kwegazi okungahambi kahle enhliziyweni.

Ngokungafani ne-magnetic resonance imaging (MRI) ne-computed tomography (CT), eveza ukwakheka kokugeleza kwegazi kuya nokubuya ezithweni, ukuskena kwe-PET kunikeza imininingwane ethe xaxa mayelana nokuthi izitho nezicubu zisebenza kanjani.

Iskena se-PET senhliziyo singathola ukuthi ngabe izindawo zemisipha yenhliziyo yakho zithola igazi elanele yini, uma kukhona ukulimala kwenhliziyo noma izicubu ezibomvu enhliziyweni, noma uma kukhona inqwaba yezinto ezingavamile emisipheni yenhliziyo.

Ukuskena kwe-PET kudinga inani elincane le-radioactive material (tracer).

• Le tracer inikezwa ngomthambo (IV), imvamisa ingaphakathi kwendololwane yakho.
• Ihamba egazini lakho futhi iqoqele ezithweni nasezicutshini, kufaka phakathi inhliziyo yakho.
• I-tracer isiza i-radiologist ukubona izindawo noma izifo ezithile ngokucacile.

Uzodinga ukulinda eduze njengoba i-tracer imuncwa umzimba wakho. Lokhu kuthatha cishe ihora elilodwa ezimweni eziningi.

Ngemuva kwalokho, uzolala etafuleni elincane, elingena kuskena esikhulu esimise umhubhe.

• Ama-electrode e-electrocardiogram (ECG) azobekwa esifubeni sakho. Isithwebuli se-PET sithola amasiginali avela kulokho okulandela umkhondo.
• Ikhompyutha iyishintsha imiphumela ibe yizithombe ezi-3-D.
• Izithombe zikhonjiswa kumonitha ukuze kufundwe i-radiologist.

Kufanele ulale unganyakazi ngesikhathi sokuskena kwe-PET ukuze umshini ukwazi ukukhiqiza izithombe ezicacile zenhliziyo yakho.

Kwesinye isikhathi, isivivinyo senziwa ngokuhlangana nokuhlolwa kwengcindezi (ukuzivocavoca noma ukucindezela kwe-pharmacologic).

Ukuhlolwa kuthatha imizuzu engama-90.

Ungacelwa ukuthi ungadli lutho amahora amane kuya kwayisithupha ngaphambi kokuskena. Uzokwazi ukuphuza amanzi. Kwesinye isikhathi unganikezwa ukudla okukhethekile ngaphambi kokuhlolwa.

Tshela umhlinzeki wakho wezempilo uma:

• Uyesaba izikhala eziseduze (une-claustrophobia). Unganikezwa umuthi ozokusiza uzizwe ulele futhi ungakhathazeki kangako.
• Ukhulelwe noma ucabanga ukuthi kungenzeka ukhulelwe.
• Unemizimba yokungezwani komzimba nodayi ojojowe (umehluko).
• Uphuza i-insulin yesifo sikashukela. Uzodinga ukulungiswa okukhethekile.

Hlala utshela umhlinzeki wakho ngemithi oyiphuzayo, kufaka phakathi leyo ethengwe ngaphandle kwemithi kadokotela. Kwesinye isikhathi, imithi ingaphazamisa imiphumela yokuhlolwa.

Ungase uzizwe uluma olubukhali lapho inaliti equkethe i-tracer ifakwa emthanjeni wakho.

Ukuskena i-PET akubangeli ubuhlungu. Itafula lingaba nzima noma libande, kepha ungacela ingubo noma umcamelo.

I-intercom egumbini ikuvumela ukuba ukhulume nomuntu nganoma yisiphi isikhathi.

Asikho isikhathi sokululama, ngaphandle kokuthi unikwe umuthi wokuphumula.

Iskena se-PET senhliziyo singaveza ubukhulu, ukuma, ukuma, nomsebenzi othile wenhliziyo.

Kuvame ukusetshenziswa lapho ezinye izivivinyo, njenge-echocardiogram (ECG) kanye nokuhlolwa kwengcindezi yenhliziyo kunganikeli ngemininingwane eyanele.

Lokhu kuhlolwa kungasetshenziselwa ukuxilonga izinkinga zenhliziyo futhi kukhombise izindawo lapho kunokugeleza kwegazi okuya enhliziyweni.

Kungathathwa ukuskena okuningi kwe-PET ngokuhamba kwesikhathi ukuthola ukuthi uphendula kahle kangakanani ekwelashweni kwesifo senhliziyo.

Uma ukuhlolwa kwakho kuhilela ukuzivocavoca umzimba, ukuhlolwa okujwayelekile kuyosho ukuthi ukwazile ukuzivocavoca isikhathi eside noma isikhathi eside kunabantu abaningi beminyaka yakho nobulili bakho. Awuzange ube nezimpawu noma ushintsho kumfutho wegazi noma i-ECG yakho edale ukukhathazeka.

Azikho izinkinga ezitholakele ngosayizi, ukuma, noma ukusebenza kwenhliziyo. Azikho izindawo lapho i-radiotracer iqoqwe ngokungajwayelekile.

Imiphumela engajwayelekile ingabangelwa:

• Isifo semithambo yegazi
• Ukwehluleka kwenhliziyo noma i-cardiomyopathy

Inani lemisebe esetshenziswe kuskena se-PET liphansi. Cishe icishe ifane nemisebe njengasezikhungweni eziningi ze-CT. Futhi, imisebe ayihlali isikhathi eside emzimbeni wakho.

Abesifazane abakhulelwe noma abancelisayo kufanele bazise abahlinzeki babo ngaphambi kokwenza lokhu kuhlolwa. Izinsana nezinsana ezikhulayo esibelethweni zizwela kakhulu emiphumeleni yemisebe ngoba izitho zazo zisakhula.

Kungenzeka, yize kungenzeki neze, ukuthi kube nokungezwani nezinto zomzimba ezikhipha imisebe. Abanye abantu banezinhlungu, ubomvu, noma ukuvuvukala endaweni yomjovo.

Kungenzeka ube nemiphumela engamanga kuskena se-PET. Ushukela wegazi noma amazinga e-insulin angathinta imiphumela yokuhlolwa kubantu abanesifo sikashukela.

Iningi lama-PET scan manje ayenziwa kanye ne-CT scan. Lokhu kuhlanganiswa kweskena kubizwa ngePET / CT.

Ukuskena kwemithi yenuzi yenhliziyo; Inhliziyo positron emission tomography; Iskena se-Myocardial PET

UPatel NR, uTamara LA. I-Cardiac positron emission tomography. Ku: Levine GN, ed. Izimfihlo Ze-Cardiology. Umhlaka 5. IPhiladelphia, PA: Elsevier; 2018: isahluko 9.

UNensa F, Schlosser T. Cardiac positron emission tomography / magnetic resonance. Ku: Manning WJ, uPennell DJ, ama-eds. Ukuvezwa kwemagnethi yemithambo yenhliziyo. 3rd ed. IPhiladelphia, PA: Elsevier; 2019: isahluko 50.

Udelson JE, Dilsizian V, Bonow RO. I-cardiology yenukliya. Ku: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, ama-eds. Isifo Senhliziyo SikaBraunwald: Incwadi Yemithi Yezinhliziyo Nemithambo. Umhla ka-11. IPhiladelphia, PA: Elsevier; 2019: isahluko 16.