Diso ndi njira ya ultrasound

Diso la orbit ultrasound ndi mayeso oti ayang'ane diso. Imayesanso kukula ndi kapangidwe ka diso.

Kuyesaku kumachitika nthawi zambiri muofesi ya ophthalmologist kapena dipatimenti ya ophthalmology pachipatala kapena kuchipatala.

Diso lanu lachita dzanzi ndi mankhwala (madontho oletsa kupweteka). Ultrasound wand (transducer) imayikidwa kutsogolo kwa diso.

Ultrasound imagwiritsa ntchito mafunde akumveka pafupipafupi omwe amadutsa m'maso. Mawonekedwe (ma echoes) amawu amawu amapanga chithunzi cha kapangidwe ka diso. Kuyesaku kumatenga pafupifupi mphindi 15.

Pali mitundu iwiri ya sikani: A-scan ndi B-scan.

Kwa A-scan:

• Nthawi zambiri mumakhala pampando ndikuyika chibwano chanu pompumula. Mudzayang'ana kutsogolo.
• Kafukufuku wocheperako amayikidwa kutsogolo kwa diso lanu.
• Mayesowo atha kuchitidwanso nanu mutagona mmbuyo. Ndi njirayi, chikho chodzaza madzi chimayikidwa m'diso lanu kuti muchite mayeso.

Kwa B-scan:

• Mudzakhala pansi ndipo mudzafunsidwa kuti muyang'ane mbali zambiri. Kuyesaku kumachitika nthawi zambiri mutatseka maso anu.
• Gel osungidwa pakhungu la khungu lanu. Kafukufuku wa B-scan amayikidwa bwino motsutsana ndi zikope zanu kuti ayeseko.

Palibe kukonzekera kwapadera komwe kumafunikira poyesaku.

Diso lanu lachita dzanzi, chifukwa chake simuyenera kukhala ndi vuto lililonse. Mutha kupemphedwa kuti muziyang'ana mbali zosiyanasiyana kuti musinthe chithunzi cha ultrasound kapena kuti chitha kuwona mbali zosiyanasiyana za diso lanu.

Gel osakaniza ndi B-scan akhoza kutsika patsaya lanu, koma simungamve kupweteka kapena kupweteka.

Mungafunike mayeso amenewa ngati muli ndi ng'ala kapena mavuto ena amaso.

Kupenda kwa A-scan ultrasound kumayesa diso kuti lizindikire mphamvu yoyenera ya mandala asanafike opaleshoni ya maso.

Kujambula kwa B kumachitika poyang'ana mkati mwa diso kapena malo kumbuyo kwa diso omwe sangawonekere mwachindunji. Izi zitha kuchitika mukakhala ndi ng'ala kapena zina zomwe zimapangitsa kuti zikhale zovuta kuti dokotala awone kumbuyo kwa diso lanu. Mayesowo atha kuthandizira kuzindikira kupindika kwa diso, zotupa, kapena zovuta zina.

Pogwiritsa ntchito A-scan, miyezo ya diso imakhala yofanana.

Pogwiritsa ntchito B-scan, mawonekedwe a diso ndi kuzungulira kwake amawoneka abwinobwino.

Kujambula kwa B kumatha kuwonetsa:

• Kuthira magazi mu gel osalala (vitreous) yemwe amadzaza kumbuyo kwa diso (vitreous hemorrhage)
• Khansa ya diso (retinoblastoma), pansi pa diso, kapena mbali zina za diso (monga khansa ya pakhungu)
• Minofu yowonongeka kapena kuvulala mu sonyoni (orbit) yomwe imazungulira ndikuteteza diso
• Matupi akunja
• Kukoka diso kumbuyo kwa diso (gulu la retina)
• Kutupa (kutupa)

Pofuna kupewa kukanda diso, osapaka diso lodzilimbitsa kufikira pomwe mankhwala ochititsa dzanzi atha (pafupifupi mphindi 15). Palibe zoopsa zina.

Echography - njira ya diso; Ultrasound - njira ya diso; Ocular ultrasonography; Zojambula zapa Orbital

• Echoencephalogram yamutu ndi yamaso

Fisher YL, Sebrow DB. Lumikizanani ndi B-scan ultrasonography. Mu: Yanoff M, Duker JS, olemba. Ophthalmology. 5th ed. Philadelphia, PA: Elsevier; 2019: chap 6.5.

Guthoff RF, Labriola LT, Stachs O. Kuzindikira ophthalmic ultrasound. Mu: Schachat AP, Sadda SVR, Hinton DR, Wilkinson CP, Wiedemann P, olemba. Retina wa Ryan. Lachisanu ndi chimodzi. Philadelphia, PA: Elsevier; 2018: mutu 11.

Thust SC, Miszkiel K, Davagnanam I. Orbit. Mu: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, olemba. Grainger & Allison's Diagnostic Radiology: Buku Lophunzirira Kujambula Kwazachipatala. Lachisanu ndi chimodzi. Philadelphia, PA: Elsevier Churchill Livingstone; 2015: chap 66.