Mtima intravascular ultrasound

Intravascular ultrasound (IVUS) ndiyeso yoyezetsa matenda. Kuyesaku kumagwiritsa ntchito mafunde akumveka kuti awone mkati mwa mitsempha yamagazi. Ndiwothandiza kuwunika mitsempha yamitsempha yomwe imapereka mtima.

Kachingwe kakang'ono kokhala ndi ma ultrasound kamamangiriridwa pamwamba pa chubu chochepa thupi. Chubu ichi chimatchedwa catheter. Catheter imalowetsedwa mumtsempha m'dera lanu ndikubwera mpaka pamtima. Ndizosiyana ndi duplex ultrasound wamba. Duplex ultrasound yapangidwa kuchokera kunja kwa thupi lanu poika transducer pakhungu.

Kompyutala imayeza momwe mafunde amawu amawonekera pamitsempha yamagazi, ndikusintha mafundewo kukhala zithunzi. IVUS imapatsa wothandizira zaumoyo kuyang'ana mitsempha yanu yamkati kuchokera mkati-kunja.

IVUS imachitika nthawi zambiri pochita izi. Zifukwa zomwe zingachitikire zikuphatikiza:

• Kupeza chidziwitso chokhudza mtima kapena mitsempha yake yamagazi kapena kuti mudziwe ngati mukufuna opaleshoni ya mtima
• Kuchiza mitundu ina yamikhalidwe yamtima

Angiography imawunikira minyewa yambiri yamthupi. Komabe, sichitha kuwonetsa makoma amitsempha. Zithunzi za IVUS zimawonetsa makoma a mtsempha ndipo zitha kuwulula cholesterol ndi mafuta (zikwangwani). Kuchulukitsa kwa madipozowa kumatha kuwonjezera chiopsezo chanu chodwala matenda a mtima.

IVUS yathandiza opereka chithandizo kumvetsetsa momwe ma stents amatsekera. Izi zimatchedwa stent restenosis.

IVUS imachitika kawirikawiri kuti zitsimikizidwe kuti stent imayikidwa bwino nthawi ya angioplasty. Zingathenso kuchitidwa kuti mudziwe komwe stent iyenera kukhazikitsidwa.

IVUS itha kugwiritsidwanso ntchito:

• Onani mlengalenga ndi kapangidwe ka makoma a mitsempha, omwe amatha kuwonetsa zolengeza
• Pezani mtundu uti wamagazi womwe umakhudzidwa ndikutsika kwa aortic

Pali chiopsezo chochepa chazovuta ndi angioplasty ndi catheterization yamtima. Komabe, mayesowa ndiotetezeka kwambiri akachitika ndi gulu lodziwa zambiri. IVUS imawonjezeranso zoopsa zina.

Zowopsa za ochititsa dzanzi ndi opaleshoni yonse ndi izi:

• Zomwe zimachitika ndi mankhwala
• Mavuto opumira
• Kukhetsa magazi, magazi kuundana
• Matenda

Zowopsa zina ndi izi:

• Kuwonongeka kwa valavu yamtima kapena chotengera magazi
• Matenda amtima
• Kugunda kwamtima kosafunikira (arrhythmia)
• Kulephera kwa impso (chiopsezo chachikulu mwa anthu omwe ali ndi vuto la impso kapena matenda ashuga)
• Sitiroko (izi ndizochepa)

Pambuyo poyesa, catheter imachotsedwa kwathunthu. Bandeji imayikidwa m'deralo. Mudzafunsidwa kugona chafufumimba kumbuyo kwanu ndikumakakamizidwa kumalo anu obowola kwa maola ochepa mutayesedwa kuti muchepetse magazi.

Ngati IVUS idachitika pa:

• Catheterization yamtima: Mukhala mchipatala kwa pafupifupi 3 mpaka 6 maola.
• Angioplasty: Mudzakhala mchipatala kwa maola 12 mpaka 24.

IVUS siyowonjezera nthawi yomwe muyenera kukhala mchipatala.

IVUS; Ultrasound - mitima yamitsempha yamagazi; Endovascular ultrasound; Zojambulajambula zamkati

• Mitsempha yamkati yamkati
• Kachitidwe kachitidwe ka mtima
• Zowonera Coronary

Honda Y, Fitzgerald PJ, Yock PG. Mitsempha yotchedwa ultrasound. Mu: Topol EJ, Teirstein PS, olemba. Buku Lophunzitsira la Cardiology. 8th ed. Philadelphia, PA: Elsevier; 2020: chap 65.

Yammine H, Ballast JK, Arko FR. Mitsempha yotchedwa ultrasound. Mu: Sidawy AN, Perler BA, olemba. Rutherford Opaleshoni ya Mitsempha ndi Endovascular Therapy. 9th ed. Philadelphia, PA: Elsevier; 2019: chap 30.