Qhov muag thiab orbit ultrasound

Qhov muag thiab lub voj voos ultrasound yog kev sim saib thaj chaw lub qhov muag. Nws kuj ntsuas qhov loj thiab cov qauv ntawm lub qhov muag.

Qhov kev ntsuam xyuas no feem ntau yog ua hauv ophthalmologist lub chaw haujlwm lossis ophthalmology chav tsev kho mob lossis chaw kuaj mob.

Koj lub qhov muag yog loog nrog tshuaj (tso tshuaj loog). Tus ultrasound wand (transducer) muab tso rau qhov chaw ua ntej ntawm lub qhov muag.

Tus ultrasound siv cov suab nrov nrov ntau zaus uas mus txog ntawm lub qhov muag. Reflections (echoes) ntawm lub suab ntas tsim lub duab ntawm cov qauv ntawm lub qhov muag. Qhov kev kuaj mob yuav siv sijhawm li 15 feeb.

Nws muaj 2 hom kev soj ntsuam: A-scan thiab B-scan.

Rau qhov A-scan:

• Koj feem ntau yuav zaum hauv ib lub rooj zaum thiab muab koj lub puab tsaig chin so. Koj yuav saib ncaj rau tom hauv ntej.
• Ib qho kev sojntsuam me yog muab tso rau sab xub ntiag ntawm koj lub qhov muag.
• Qhov sim no kuj tseem ua tau nrog koj rov qab dag. Nrog rau hom no, lub khob ntim kua tau tso rau hauv koj lub qhov muag los ua qhov ntsuas.

Rau qhov B-scan:

• Koj yuav tau zaum thiab koj yuav tau hais kom saib hauv ntau qhov kev qhia. Qhov kev sim siab feem ntau tau ua nrog koj lub qhov muag kaw.
• Ib lub gel tso rau ntawm daim tawv muag ntawm koj daim tawv muag. Kev tshuaj ntsuam B-scan yog maj mam muab tso rau koj daim tawv muag los ua qhov kev sim.

Tsis muaj kev npaj tshwj xeeb yog xav tau rau qhov kev ntsuas no.

Koj lub qhov muag loog, yog li koj yuav tsum tsis txhob muaj qhov tsis xis nyob. Tej zaum koj yuav raug nug kom saib rau hauv cov lus qhia sib txawv los txhim kho cov duab ultrasound lossis yog li nws tuaj yeem saib thaj chaw sib txawv ntawm koj lub qhov muag.

Cov gel siv nrog B-scan yuav khiav qis koj sab plhu, tab sis koj yuav tsis hnov ​​ib qho tsis xis nyob lossis mob.

Koj tuaj yeem xav tau qhov kev sim no yog tias koj muaj kab mob qhov muag lossis lwm yam teeb meem qhov muag.

Txoj kev kuaj A-scan ultrasound ntsuas lub qhov muag los txiav txim lub zog ntawm lub lens cog ua ntej cataract phais.

B-scan ua kom saib sab hauv ntawm lub qhov muag lossis qhov chaw tom qab lub qhov muag uas tsis tuaj yeem pom ncaj qha. Qhov no tuaj yeem tshwm sim thaum koj muaj cataracts lossis lwm yam mob uas ua rau nws nyuaj rau tus kws kho mob pom mus rau hauv qaum koj lub qhov muag. Kev kuaj mob tuaj yeem pab soj ntsuam cov hlwb retinal, cov qog, lossis lwm yam kev cuam tshuam.

Kev kuaj A-ntsuas, ntsuas qhov muag ntawm qhov muag yog nyob rau hauv ib txwm.

Txog kev kuaj mob B, cov qauv ntawm lub qhov muag thiab lub voj voog zoo li qub.

B-scan yuav qhia:

• Los ntshav mus rau hauv cov ntshiab gel (vitreous) uas puv rau sab nraum qab ntawm lub qhov muag (mob ntshav qab zib)
• Mob qog noj ntshav ntawm pob tsuas (retinoblastoma), nyob rau hauv qhov retina, lossis lwm qhov chaw ntawm lub qhov muag (xws li mob melanoma)
• Daim ntaub uas raug mob los yog raug mob hauv pob ntseg me me (ib ncig) uas nyob ib puag ncig thiab tiv thaiv lub qhov muag
• Lub cev txawv teb chaws
• Rub tawm ntawm lub retina los ntawm sab nraum qab ntawm lub qhov muag (retinal detachment)
• O o (o)

Txhawm rau kom tsis txhob khawb qhov mob ntawm lub qhov muag, tsis txhob txhuam lub qhov muag lo ntsiab muag kom txog thaum hnov ​​mob hlais tawm (li 15 feeb). Tsis muaj lwm yam kev pheej hmoo.

Echography - lub qhov muag; Ultrasound - qhov muag ntawm qhov muag; Ocular ultrasonography; Orbital ultrasonography

• Lub taub hau thiab qhov muag echoencephalogram

Fisher YL, Nqaij DB. Hu rau B-scan ultrasonography. Hauv: Yanoff M, Duker JS, eds. OphthalmologyCov. Thib 5 ed. Philadelphia, PA: Elsevier; 2019: chap 6.5.

Guthoff RF, Labriola LT, Stachs O. Kev kuaj pom ophthalmic ultrasound. Hauv: Schachat AP, Sadda SVR, Hinton DR, Wilkinson CP, Wiedemann P, eds. Ryan's RetinaCov. 6 tus ed. Philadelphia, PA: Elsevier; 2018: chap 11.

Thust SC, Miszkiel K, Davagnanam I. Orbit. Hauv: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. Grainger & Allison's Diagnostic Radiology: Phau Ntawv Qhia Txog Kev Kho MobCov. 6 tus ed. Philadelphia, PA: Elsevier Churchill Livingstone; Xyoo 2015: chap 66.