Thaum peb saib tej yam ntawm peb lub qhov muag, muaj ntau txoj hauv kev uas peb "saib".Qee lub sij hawm, tej zaum peb yuav xaiv saib ncaj nraim ua ntej ib yam li thaum peb nyeem ib daim ntawv ceeb toom ntawm phab ntsa.Los yog peb yuav saib kab rov tav thaum luam dej hiav txwv.Hauv ib txoj kev zoo sib xws, muaj ntau ntau txoj kev uas ultrasound sojntsuam tuaj yeem "saib" ntawm yam.Cov kev no hu ua "hom" thiab cov no yuav piav qhia hauv qab no.Cov hom muaj npe nrog cov tsiaj ntawv thiab tej zaum yuav tsis meej pem heev.Txawm li cas los xij, peb yuav sib tham txog txhua qhov lem thiab koj yuav, thaum kawg, nkag siab cov ntsiab lus ntawm lawv.

A Hom

A-hom yog daim ntawv yooj yim tshaj plaws ntawm ultrasound imaging thiab tsis nquag siv.

Cov duab tau pom ntawm qhov screen hauv ib qhov ntev.Lub ultrasound nthwv dej uas tawm ntawm qhov kev sojntsuam mus rau hauv txoj kev nqaim zoo li txoj kev ncaj.Ib qho transducer scans lub cev.Siv X thiab Y nkag mus, cov ntaub ntawv khaws cia yog tom qab ntawd kos rau ntawm qhov screen raws li kev ua haujlwm ntawm qhov tob.A-hom, lossis hom amplitude, yog qhov zoo tagnrho rau kev ntsuas qhov deb.A-hom ultrasound kuj tseem siv tau los nrhiav cov hlwv lossis qog.

BHom

B-Mode, tseem hu ua 2D hom, nthuav qhia kev ua qauv qhia ob sab.Cov duab ci dua, qhov khaus ntau dua thiab tsom rau lub ncha (uas yog reverberation ntawm suab nthwv dej uas lub transducer emits) yog.Zoo li yuav luag tag nrho lwm cov duab ultrasound, txoj hauj lwm ntawm daim duab yog nyob rau ntawm lub kaum sab xis uas lub transducer muab tso rau.

C-Mode ua haujlwm zoo ib yam li B-Mode, txawm hais tias nws tsis tau tsim raws li nws lub peev xwm tag nrho.Siv cov ntaub ntawv thiab ntau qhov tob los ntawm A-Mode, lub transducer ces txav mus rau B-Mode (los yog 2D hom) thiab tshuaj xyuas tag nrho cheeb tsam ntawm qhov tob thaum xub thawj ua haujlwm hauv ob sab duab.

M hom:

M stands rau motion.Hauv m-hom kev nrawm nrawm ntawm B-hom kev tshuaj ntsuam uas nws cov duab ua raws li ib txwm ua ntawm qhov screen ua rau cov kws kho mob pom thiab ntsuas ntau yam ntawm cov lus tsa suab, vim tias thaj tsam ntawm lub cev uas tsim cov kev xav txav mus rau qhov kev sojntsuam.

Doppler hom:

Hom no ua rau siv cov nyhuv Doppler hauv kev ntsuas thiab pom cov ntshav ntws.Doppler sonography ua lub luag haujlwm tseem ceeb hauv tshuaj.Sonography tuaj yeem txhim kho nrog kev ntsuas Doppler, uas siv cov nyhuv Doppler los ntsuas seb cov qauv (ib txwm ntshav) txav mus los lossis deb ntawm qhov kev sojntsuam, thiab nws cov txheeb ze tshaj tawm.Los ntawm kev xam qhov zaus hloov ntawm ib qho qauv ntim, piv txwv li, lub dav hlau ntawm cov ntshav ntws hla lub plawv valve, nws qhov ceev thiab kev taw qhia tuaj yeem txiav txim siab thiab pom.Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv kev tshawb fawb plawv (sonography ntawm vasculature system thiab lub plawv) thiab qhov tseem ceeb hauv ntau qhov chaw xws li kev txiav txim siab rov qab cov ntshav ntws hauv lub siab vasculature hauv portal hypertension.Cov ntaub ntawv Doppler yog tso tawm graphically siv spectral Doppler, los yog raws li ib tug duab siv xim Doppler (directional Doppler) los yog lub hwj chim Doppler (tsis yog-directional Doppler).Qhov kev hloov Doppler no poob rau hauv qhov kev hnov ​​​​lus thiab feem ntau nthuav tawm audibly siv lub tso suab hais lus: qhov no ua rau ib qho txawv heev, txawm hais tias hluavtaws, suab nrov.