umfanekiso we-ultrasound kunye nombala weDoppler ultrasound imaging?
Malunga neminyaka engama-20 eyadlulayo, abanye oovulindlela ababezinikele ekuqaliseni inkqubo yoqeqesho yeultrasound yamazwe angaphandle, ingakumbi abo bavela eUnited States, bafumana intaphane yemibuzo yovavanyo lomsebenzi weultrasound kuMntla Merika ngokusebenzisa amajelo awahlukahlukeneyo.Umbuzo omnye wempendulo emfutshane: Yintoni umahluko phakathi koMbalaULTRASONOGRAPHYkunye ne-COLOR DOPPLER ULTRASONOGRAPHY?
Uthini umahluko phakathi komfanekiso we-ultrasound wombala kunye nombala weDoppler ultrasound imaging?
Ngokukhawuleza nje ukuba i-Doppler ultrasound imaging ingene eTshayina, yabizwa ngokuba yi "color ultrasound".Oogqirha baseTshayina be-ultrasound bahlala belinganisa umbala we-ultrasound kunye nombala we-Doppler ultrasound, ngoko i-China yabona le ngxaki okokuqala.Oogqirha bebebonakala bebhidekile bengazi ukuba umbuzo ubuziswa yintoni.
Ngokwenene, lo ngumbuzo olula kakhulu.
Umbala we-ultrasound ubhekiselele ekuboniseni umqondiso othile wolwazi lwe-echo ngexesha lokuhlolwa kwe-ultrasound kunye nemithetho ekhethekileyo yekhowudi yombala, ebonisa umbala we-ultrasound.Olu lwazi lukhethekileyo lwe-echo lunokuba bubunzima be-echo, i-Doppler frequency shift, ulwazi lobunzima, ulwazi lwe-microbubble, njl.
ngoko.Imifanekiso yeDoppler yoMbala yenye kuphela yeendlela ezininzi zokucinga ngemibala.Ikhupha ulwazi lwe-Doppler ye-frequency shift kulwazi lwe-echo kwaye lubonise ngendlela yekhowudi yombala.
Ukongeza kumfanekiso weDoppler yombala esiwuqhelileyo, makhe sijonge kwiimowudi zemifanekiso ye-ultrasound yombala.
Siyazi ukuba i-ultra-dimensional grey-scale ultrasound ibonisa ubunzulu besignali ye-echo ngendlela yokukhanya kwekhowudi.Ukuba sifaka ikhowudi yombala kwindawo ethile okanye konke ukukhanya, siya kufumana umfanekiso onemibala.
Ngaphezulu: Indawo ethile kumqondiso wegreyscale ifakwe ngekhowudi emfusa (utolo oluvulekileyo), kwaye isilonda esinokukhanya okuhambelanayo sijika sibemfusa (esiboniswe lutolo oluluqilima).
Le ndlela yokucinga ingentla edibanisa ubunzulu bombala okanye amanqanaba ombala owahlukileyo yayithandwa kakhulu eTshayina kangangexesha elithile ekuqaleni kweminyaka yoo-1990.Yayibizwa ngokuba yi "2Dpseudo-umbalaimaging" ngelo xesha. Nangona amaphepha amaninzi apapashwa ngelo xesha, enyanisweni Ixabiso lesicelo lilinganiselwe kakhulu. Ngelo xesha, izibhedlele ezininzi zaze zasebenzisa lo mfanekiso ukuze udlule njengombala we-Doppler imaging ukuhlawulisa izigulane "iifizi ze-ultrasound zombala". Ibingenantloni ngenene.
Ngapha koko, yonke imiqondiso yombala kwimifanekiso ye-ultrasound yombala yimibala-pseudo, kwaye le miqondiso yemibala ifakwe ikhowudi kwaye isetwe sithi.
Uninzi lwabavelisi bei-ultrasonic elastography, okwangoku idume kakhulu, iphinda ibonise ubulukhuni (okanye i-elastic modulus) ye-tissue okanye izilonda kwifom ye-color-coded form, ngoko ke luhlobo lombala we-ultrasound.
Ngasentla: I-Shear wave elastography ibonisa imodyuli enwebekayo yesilonda kwisikali sombala wekhowudi.
Xa isixa esincinci se-microbubbles siqhuma, isiphumo esinamandla esingenasiphelo siya kuveliswa, esihlala singahambelani kakuhle ne-echo intensity.Siyibiza le ndlela yokukhupha ulwazi olungahambelaniyo lwe-imaging non-correlated imaging.I-imaging engahambelaniyo isetyenziselwa ukubonisa amanani amancinci amancinci kwaye iluncedo kakhulu kuphando lwe-ultrasound ejoliswe kwi-microbubble.Ngokuqhelekileyo, oku kungadityaniswanga kwakhona kuboniswa kwifom enemibala enemibala, ngoko ke ikwangumfanekiso wombala.
Ngaphezulu: i-p-selectin i-microbubble-imaging ejoliswe kuyo ibonisa ukuphuculwa okukhethiweyo kodonga lwangaphambili emva kwe-ischemia, kunye ne-myocardial ephuculweyo ye-sonographic ye-sonographic ye-cardiac short-axis imifanekiso kwi-anterior ekhohlo isihla i-ischemia-reperfusion kwiimpuku.
(A) I-ultrasound ye-Myocardial ephuculweyo ibonisa i-perfusion defect yangaphambili (utolo) ngexesha le-myocardial ischemia.
(B) Emva kwemizuzu engama-45 yokubuyisela kwakhona.Isikali sombala simele ubunzulu bomfanekiso ongadityaniswanga wee-microbubbles ekujoliswe kuzo.
I-imaging ye-blood flow vector engezantsi nayo imowudi yomfanekiso we-ultrasound yombala
Ixesha lokuposa: Nov-11-2023
