Izindaba - Indlela Esebenza ngayo: Amamodi we-Ultrasound
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Isebenza kanjani: Izindlela ze-Ultrasound

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Lapho sibheka izinto ngamehlo ethu, kunezindlela ezihlukahlukene 'esibheka' ngazo..Ngezinye izikhathi, singase sikhethe ukubheka phambili kuphela njengalapho sifunda isaziso odongeni.Noma singase sibheke sibheke phezulu lapho siskena ulwandle.Ngendlela efanayo, kunezindlela eziningi ezahlukene i-ultrasound probe “engabheka” ngayo izinto.Lezi zindlela zibizwa ngokuthi “izindlela” futhi lezi zizochazwa ngezansi.Amamodi aqanjwe ngamagama futhi angazwakala edida kakhulu.Kodwa-ke, sizoxoxa ngayinye ngokulandelana futhi ekugcineni, uzoqonda izisekelo zazo.

 

A Imodi

I-A-mode iyindlela elula yokuthwebula izithombe ze-ultrasound futhi ayisetshenziswa njalo.

Isithombe sikhonjiswa esikrinini endaweni eyodwa.Igagasi le-ultrasound eliphuma ku-probe lihamba ngendlela eqondile efana nepensela.I-transducer eyodwa ihlola umzimba.Kusetshenziswa ukufinyelela kuka-X kanye no-Y, ulwazi oluqoqiwe lube seluhlelwe esikrinini njengomsebenzi wokujula.Imodi ye-A, noma imodi ye-amplitude, ilungele ukukala amabanga.I-A-mode ultrasound ingase isetshenziselwe ukuthola ama-cysts noma izimila.

 

BImodi

I-B-Mode, eyaziwa nangokuthi imodi ye-2D, iphrezenta ukuboniswa kwezinhlangothi ezimbili.Uma isithombe sikhanya, i-echo ishube kakhulu futhi igxile (okuwukuphenduka kwamaza omsindo akhishwa yi-transducer).Njengazo zonke ezinye izithombe ze-ultrasound, ukuma kwesithombe kuncike engeli lapho i-transducer ibekwe khona.

 

I-C-Mode isebenza ngendlela efanayo ne-B-Mode, nakuba ingakathuthukisiwe ukuze ibe namandla aphelele.Isebenzisa idatha nebanga lokujula ukusuka ku-A-Mode, i-transducer ibe isithuthela ku-B-Mode (noma imodi ye-2D) futhi ihlola sonke isifunda ekujuleni okwakusetshenziswe ekuqaleni esithombeni esinezinhlangothi ezimbili.

Imodi ye-M:

U-M umele umnyakazo.Kumodi ye-m ukulandelana okusheshayo kokuskena kwemodi ye-B izithombe zazo zilandelana ngokulandelana esikrinini kuvumela odokotela ukuthi babone futhi balinganise ububanzi bokunyakaza, njengoba imingcele yesitho ekhiqiza ukuboniswa ihamba ngokuhlobene ne-probe.

Imodi ye-Doppler:

Le modi isebenzisa umphumela we-Doppler ekulinganiseni nasekuboneni ukugeleza kwegazi ngeso lengqondo.I-Doppler sonography idlala indima ebalulekile kwezokwelapha.I-Sonography ingathuthukiswa ngezilinganiso ze-Doppler, ezisebenzisa umphumela we-Doppler ukuhlola ukuthi ingabe izakhiwo (igazi elivamile) liyasondela noma liqhelile ku-probe, kanye nesivinini salo esihlobene.Ngokubala ukushintshwa kwemvamisa yevolumu ethile yesampula, isibonelo, ijethi lokugeleza kwegazi phezu kwe-valve yenhliziyo, isivinini salo kanye nokuqondisa kunganqunywa futhi kuboniswe ngeso lengqondo.Lokhu kuwusizo ikakhulukazi ezifundweni zenhliziyo nemithambo yegazi (i-sonography yohlelo lwe-vasculature nenhliziyo) futhi kubalulekile ezindaweni eziningi njengokunquma ukugeleza kwegazi okuhlanekezelwe ku-vasculature yesibindi ku-portal hypertension.Ulwazi lwe-Doppler luboniswa ngezithombe kusetshenziswa i-Doppler ebukekayo, noma njengesithombe kusetshenziswa i-Doppler yombala (i-Doppler eqondisayo) noma i-Doppler yamandla (i-Doppler engaqondile).Lokhu kushintsha kwe-Doppler kuwela ebangeni elizwakalayo futhi kuvame ukwethulwa ngokuzwakalayo kusetshenziswa izipikha ze-stereo: lokhu kukhiqiza umsindo ohluke kakhulu, nakuba owenziwe, oshaya ngamandla.


Isikhathi sokuthumela: Jun-20-2022