I-eye ne-orbit ultrasound

I-eye ne-orbit ultrasound isivivinyo sokubheka indawo yamehlo. Ibuye ilinganise ubukhulu nezakhiwo zeso.

Ukuhlolwa kuvame ukwenziwa ehhovisi likadokotela wezifo zamehlo noma emnyangweni wezifo zamehlo wesibhedlela noma umtholampilo.

Iso lakho lindikindiki ngomuthi (amaconsi okubulala izinzwa). I-wand (i-transducer) ye-ultrasound ibekwa ebusweni bangaphambili beso.

I-ultrasound isebenzisa amagagasi omsindo aphakeme kakhulu ahamba esweni. Ukucabanga (ama-echoes) amaza omsindo kwakha isithombe sokwakheka kweso. Ukuhlolwa kuthatha imizuzu eyi-15.

Kunezinhlobo ezi-2 zeskena: i-A-scan ne-B-scan.

Okokuskena i-A:

• Imvamisa uhlala esihlalweni ubeke isilevu sakho ekuphumuleni kwesilevu. Uzobheka ngqo phambili.
• Kufakwa iphenyo encane ebheke phambili kweso lakho.
• Ukuhlolwa kungenziwa futhi ngawe ulele emuva. Ngale ndlela, inkomishi egcwele uketshezi ibekwa esweni lakho ukwenza isivivinyo.

Okokuskena kwe-B:

• Uzohlala phansi futhi ungacelwa ukuthi ubheke ezinhlangothini eziningi. Ukuhlolwa kuvame ukwenziwa ngamehlo akho evaliwe.
• Ijeli ibekwa esikhunjeni samajwabu amehlo akho. Uphenyo lwe-B-scan lubekwe ngobumnene ngokumelene nezinkophe zakho ukwenza isivivinyo.

Akukho ukulungiselela okukhethekile okudingekayo kulolu vivinyo.

Iso lakho lindikindiki, ngakho-ke akufanele ube nenkinga. Ungacelwa ukuthi ubheke ezinhlangothini ezahlukahlukene ukuze uthuthukise isithombe se-ultrasound noma ukuze ikwazi ukubuka izindawo ezahlukahlukene zeso lakho.

Ijeli esetshenziswe nge-B-scan ingahle yehle esihlathini, kepha ngeke uzizwe ungaphatheki kahle noma ubuhlungu.

Ungahle udinge lokhu kuhlolwa uma unezinkinga zamehlo noma ezinye izinkinga zamehlo.

I-A-scan ultrasound ilinganisa iso ukuthola amandla afanele okufakwa kwelensi ngaphambi kokuhlinzwa kwe-cataract.

I-B-scan yenziwa ukubheka ingxenye engaphakathi yeso noma isikhala ngemuva kweso esingabonakali ngqo. Lokhu kungenzeka uma unezinkinga zamehlo noma ezinye izimo ezenza kube nzima ngodokotela ukubona ngemuva kweso lakho. Ukuhlolwa kungasiza ekutholeni ithimba le-retinal, izicubu, noma ezinye izinkinga.

Ngokuskena i-A, izilinganiso zeso zikububanzi obujwayelekile.

Okwe-B-scan, ukwakheka kweso kanye ne-orbit kuvela njengokujwayelekile.

Ukuskena kwe-B kungakhombisa:

• Ukopha ku-gel ecacile (vitreous) egcwalisa emuva kweso (i-vitreous hemorrhage)
• Umdlavuza we-retina (i-retinoblastoma), ngaphansi kwe-retina, noma kwezinye izingxenye zeso (njenge-melanoma)
• Izicubu ezilimele noma ukulimala esokheni lamathambo elizungeza futhi livikele iso
• Imizimba yangaphandle
• Ukudonsa i-retina ngemuva kweso (iqembu le-retinal)
• Ukuvuvukala (ukuvuvukala)

Ukuze ugweme ukuklwebheka i-cornea, ungalihlikihli iso elibuthuntu kuze kube yilapho umuthi wokubulala izinzwa uphela (cishe imizuzu engu-15). Azikho ezinye izingozi.

I-Echography - i-orbit orbit; I-Ultrasound - i-eye orbit; I-Ocular ultrasonography; I-Orbital ultrasonography

• I-echoencephalogram yekhanda neso

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UThust SC, uMiszkiel K, uDavagnanam I. Orbit. Ku: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, ama-eds. I-Grainger & Allison's Diagnostic Radiology: Incwadi Yokufunda Ngezithombe. Umhlaka 6. IPhiladelphia, PA: Elsevier Churchill Livingstone; 2015: isahluko 66.