Cov cuab yeej siv ultrasound feem ntau yog siv rau hauv npua teb, tshwj xeeb tshaj yog rau kev yug me nyuam, uas tuaj yeem siv los ntsuas kev xeeb tub, rov qab, cov leeg ntawm qhov muag, thiab qee yam khoom siv los tua cov noog thiab tsiaj txhu kuj tseem siv hauv ultrasound.Tej zaum koj yuav siv cov khoom siv ultrasound feem ntau, tab sis koj yuav tsis paub qee qhov kev paub txog, kab lus no yog kev tshuaj xyuas yooj yim ntawm ultrasound tshuab siv hauv npua teb.
Ultrasound
Ultrasound yog lub suab nrov nrov, qhov ntau ntawm tib neeg lub pob ntseg kom hnov lub suab nthwv dej yog 20Hz txog 20KHz, ntau dua 20KHz (kev vibration 20 txhiab zaus hauv ib ob) suab nthwv dej dhau qhov ntau ntawm tib neeg hnov tau hnov, yog li nws hu ua ultrasound.
Lub suab nthwv dej siv los ntawm cov cuab yeej siv ultrasound dav dav yog siab dua 20KHz, xws li qhov zaus ntawm lub tshuab hluav taws xob convex array ultrasound cev xeeb tub scanner yog 3.5-5MHz.
Yog vim li cas vim li cas ultrasound yuav siv los ntes cov cuab yeej feem ntau yog vim nws qhov kev coj ua zoo, muaj zog xav txog, thiab qee yam muaj peev xwm nkag mus.Lub ntsiab lus ntawm cov khoom siv ultrasound yog lub transducer, uas hloov cov hluav taws xob teeb liab mus rau hauv ultrasound tsis tawm, thiab cov ultrasonic tsis xav rov qab tau txais los ntawm cov transducer, uas tau hloov mus rau hauv cov teeb liab hluav taws xob, thiab cov teeb liab hluav taws xob txuas ntxiv ua cov duab los yog suab.
Ib qho ultrasound
A-Ultrasound cov cuab yeej siv feem ntau siv hauv npua teb, tshwj xeeb tshaj yog rau kev ua liaj ua teb, uas tuaj yeem siv los ntsuas kev xeeb tub, nraub qaum, qhov muag nqaij, thiab qee yam khoom siv los tua cov noog thiab tsiaj txhu kuj siv hauv ultrasound.Tej zaum koj yuav siv cov khoom siv ultrasound feem ntau, tab sis koj yuav tsis paub qee qhov kev paub txog, kab lus no yog kev tshuaj xyuas yooj yim ntawm ultrasound tshuab siv hauv npua teb.
Ultrasound
Ultrasound yog lub suab nrov nrov, qhov ntau ntawm tib neeg lub pob ntseg kom hnov lub suab nthwv dej yog 20Hz txog 20KHz, ntau dua 20KHz (kev vibration 20 txhiab zaus hauv ib ob) suab nthwv dej dhau qhov ntau ntawm tib neeg hnov tau hnov, yog li nws hu ua ultrasound.
Lub suab nthwv dej siv los ntawm cov cuab yeej siv ultrasound dav dav yog siab dua 20KHz, xws li qhov zaus ntawm lub tshuab hluav taws xob convex array ultrasound cev xeeb tub scanner yog 3.5-5MHz.
Yog vim li cas vim li cas ultrasound yuav siv los ntes cov cuab yeej feem ntau yog vim nws qhov kev coj ua zoo, muaj zog xav txog, thiab qee yam muaj peev xwm nkag mus.Lub ntsiab lus ntawm cov khoom siv ultrasound yog lub transducer, uas hloov cov hluav taws xob teeb liab mus rau hauv ultrasound tsis tawm, thiab cov ultrasonic tsis xav rov qab tau txais los ntawm cov transducer, uas tau hloov mus rau hauv cov teeb liab hluav taws xob, thiab cov teeb liab hluav taws xob txuas ntxiv ua cov duab los yog suab.
Ib qho ultrasound
Txij li thaum lub cev muaj zog sib hloov zaus muaj qhov txwv siab, B-ultrasound ntawm cov neeg kho tshuab sojntsuam yuav muaj qhov txwv kom meej.Txhawm rau kom tau txais kev daws teeb meem siab dua, cov khoom siv hluav taws xob tau tsim.Tsis txhob siv lub tshuab hluav taws xob hloov pauv hloov pauv mus rau viav vias, lub tshuab hluav taws xob sojntsuam tso ib tug xov tooj ntawm "A-ultrasound" (flashlights) nyob rau hauv ib tug convex duab, txhua yam yog hu ua ib tug array keeb.Tam sim no tswj los ntawm cov nti excises txhua array nyob rau hauv lem, yog li tau txais ib tug ceev lub teeb liab xa thiab tau txais zaus tshaj ib tug neeg kho tshuab sojntsuam.
Tab sis qee zaum koj yuav pom tias qee cov khoom siv hluav taws xob convex array probes muaj cov duab zoo dua li cov khoom siv hluav taws xob zoo, uas suav nrog cov naj npawb ntawm cov arrays, uas yog, pes tsawg arrays siv ua ke, 16?32 ntawm lawv?64 ntawm lawv?128?Cov ntsiab lus ntau dua, qhov pom tseeb dua.Tau kawg, lub tswv yim ntawm tus naj npawb channel kuj koom nrog.
Tsis tas li ntawd, koj yuav pom tias txawm hais tias lub tshuab sojntsuam lossis lub tshuab hluav taws xob convex array sojntsuam, cov duab yog ib qho haujlwm.Daim duab nyob ze yog me me, thiab daim duab nyob deb yuav ncab.Tom qab kev cuam tshuam ntawm kev xa tawm thiab tau txais cov teeb liab ntawm cov ntsiab lus array yog technically kov yeej, cov ntsiab lus array tuaj yeem ua kab rau hauv txoj kab ncaj nraim, thiab hluav taws xob linear array sojntsuam yog tsim.Cov duab ntawm lub tshuab hluav taws xob array sojntsuam yog ib lub xwmfab me me, ib yam li daim duab.Yog li ntawd, thaum siv linear array probes los ntsuas backfat, peb-txheej lamellar qauv ntawm backfat tuaj yeem nthuav tawm zoo kawg nkaus.
Los ntawm kev ua cov linear array sojntsuam loj me ntsis, koj tau txais qhov muag nqaij sojntsuam.Nws tuaj yeem ua rau pom tag nrho lub qhov muag cov leeg, thiab tau kawg, vim yog tus nqi siab ntawm cov cuab yeej siv, nws feem ntau tsuas yog siv hauv kev yug me nyuam.
Puas muaj C-ultrasounds thiab D-ultrasounds?
Tsis muaj C-ultrasounds, tab sis muaj D-ultrasounds.D ultrasound yogdoppler ultrasound, yog daim ntawv thov ntawmdoppler txoj cai ntawm ultrasound.Peb paub tias lub suab muaj ibdoppler nyhuv, uas yog thaum lub tsheb ciav hlau hla ntawm koj xub ntiag, lub suab mus nrawm dua thiab qeeb dua.Sivdoppler lub hauv paus ntsiab lus, nws muaj peev xwm qhia rau koj paub seb ib yam dab tsi txav ntawm koj los yog deb ntawm koj.Piv txwv li, thaum siv ultrasound los ntsuas ntshav txaus, ob lub xim tuaj yeem siv los txheeb xyuas cov ntshav ntws, thiab cov xim tob yog siv los qhia cov ntshav ntws.Qhov no hu ua xim ultrasound.
Xim ultrasound thiab xim cuav
Muaj ntau tus neeg muag B-ultrasound yuav tshaj tawm tias lawv cov khoom yog xim ultrasound.Kom meej meej tsis yog xim ultrasound (D-ultrasound) peb tau tham txog hauv kab lus dhau los.Qhov no tsuas yog hu ua xim cuav xwb.Lub hauv paus ntsiab lus zoo li lub TV dub thiab dawb nrog ib txheej xim zaj duab xis.Txhua lub ntsiab lus ntawm B-ultrasound sawv cev rau qhov kev siv ntawm lub teeb liab ntawm qhov kev ncua deb, qhia hauv cov nplai grey, yog li cov xim twg yog qhov tseem ceeb tib yam.
A-ultrasoundtuaj yeem muab piv rau ib-dimensional code (bar code);B-ultrasound tuaj yeem muab piv rau ob-dimensional code, nrog cov xim cuav B-ultrasound yog pleev xim rau ob-dimensional code;D-ultrasoundtuaj yeem muab piv rau peb-dimensional code.
Post lub sij hawm: Jan-08-2024
