Ukuxilongwa kwe-ultrasonic
Isixhobo sokuxilonga i-ultrasonic yezonyango sisixhobo sonyango esidibanisa umgaqo we-sonar kunye nobuchwepheshe be-radar kwisicelo seklinikhi.Umgaqo osisiseko kukuba i-high frequency ultrasonic pulse wave iphuma emzimbeni, kwaye iifom ezahlukeneyo zamaza zibonakaliswa kwiindawo ezahlukeneyo zokunxibelelana kumzimba ukwenza imifanekiso.Ukuze kuqinisekiswe ukuba kukho izilonda kumzimba.Isixhobo sokuxilonga se-ultrasonic siye saphuhliswa ukusuka kwi-original one-dimensional ultrasonic scanning display to the two-dimensional three-dimensional and four-dimensional scanning ultrasonic and display, nto leyo eyandisa kakhulu ulwazi lwe-echo kwaye yenza izilonda kumzimba webhayoloji zicace kwaye zilula yahlula.Ke ngoko, iya kusetyenziswa ngakumbi nangakumbi kwisixhobo sokuxilonga se-ultrasonic yezonyango.
1. One-dimensional ultrasonic scanning and display
Kwizixhobo zokuxilongwa kwe-ultrasonic, abantu bahlala bebhekisa kuhlobo lwe-A kunye noHlobo lwe-M, olufunyaniswa ngetekhnoloji yokulinganisa umgama we-ultrasonic pulse-echo, njengovavanyo lwe-ultrasonic ye-dimensional.Isalathiso solu hlobo lokukhutshwa kwe-ultrasonic alutshintshi, kwaye i-amplitude okanye i-gray scale ye-signal ebonakaliswe ngasemva ukusuka kwi-interface ye-impedance engeyiyo ye-simultaneous ihluke.Emva kokwandiswa, iboniswa ngokuthe tye okanye ngokuthe nkqo kwiscreen.Olu hlobo lomfanekiso lubizwa ngokuba yi-one-dimensional ultrasonic image.
(1) Uhlobo A lwe-ultrasound scan
Iprobe (i-transducer) ngokwe-probe position, ngendlela emiselweyo kumzimba womntu ukukhupha amaza amaninzi e-megahertz ultrasonic, ngomzimba womntu i-echo reflection and amplification, kunye ne-echo amplitude kunye nokumila kwi-screen display.Ulungelelwaniso oluthe nkqo lomboniso lubonisa i-amplitude waveform ye-echo ebonakalisayo;Kukho ixesha kunye nesikali somgama kwi-abscissa.Oku kunokusekwe kwindawo ye-echo, i-echo amplitude, imilo, inombolo yamaza kunye nolwazi oluhambelanayo ukusuka kwisilonda kunye nendawo ye-anatomical yesifundo sokuxilongwa.A – chwetheza i-ultrasonic probe kwindawo esisigxina inokufumana i-spectrum.
(2) I-M-uhlobo lwe-ultrasound scanner
I-probe (i-transducer) idlulisela kwaye ifumana i-ultrasonic beam kumzimba kwindawo echanekileyo kunye nolwalathiso.Umqadi ulungelelanisa ukuqaqamba komgca wokuskena othe nkqo wesiboniso ngokudlula kwimiqondiso ye-echo yobunzulu obuhlukeneyo, kwaye iyandise ngokulandelelana kwexesha, yenze umzobo wokuhamba kwenqaku ngalinye kwindawo ene-dimensional enye ngexesha.Le yi-M-mode ultrasound.Isenokuthi iqondwe njenge: I-M-mode ultrasound yitshathi yengoma enedimensional enye yotshintsho lwexesha kwiindawo zobunzulu obuhlukeneyo kwicala elinye.I-M - inkqubo yokuskena ifanelekile ngokukhethekileyo ukuvavanya amalungu eemoto.Ngokomzekelo, ekuhlolweni kwentliziyo, iindidi zeeparameters zomsebenzi wenhliziyo zinokulinganiswa kwi-trajectory yegrafu ebonisiweyo, ngoko ke i-m-mode ultrasound.Ikwabizwa ngokuba yi-echocardiography.
2. Ukuskena kwe-ultrasonic ye-two-dimensional kunye nokubonisa
Ngenxa yokuba ukuskena okune-dimensional kungaxilonga kuphela amalungu omntu ngokobukhulu be-ultrasonic return wave kunye noxinaniso lwe-echo kwigrafu, i-one-dimensional ultrasound (a-type ultrasound) ilinganiselwe kakhulu kuxilongo lwezonyango lwe-ultrasonic.Umgaqo we-imaging ye-ultrasonic scanning ye-dimensional-dimensional kukusebenzisa i-ultrasonic pulse echo, ukulungiswa kokukhanya kwe-dimensional grey display display, ibonakalisa ngokucacileyo ulwazi lwecandelo lomzimba womntu.Inkqubo yokuskena emacala mabini yenza i-transducer kumzimba womntu ngendlela emiselweyo ngaphakathi kwiprobe iqalise i-MHZ emininzi ye-ultrasound, kunye nesantya esithile kwindawo enamacala amabini, oko kukuthi ukuskenwa kwesithuba esinamacala amabini, emva koko ithunyelwe emva komntu. umzimba ukukhulisa ukusetyenzwa komqondiso we-echo ukubonisa i-cathode okanye ulawulo kwigridi, ukubonakaliswa kokukhanya kwendawo yokukhanya kuyatshintsha kunye nobukhulu bomqondiso we-echo, Umfanekiso we-tomography onamacala amabini wenziwa.Xa iboniswe kwisikrini, i-odine imele ixesha okanye ubunzulu besandi somsindo emzimbeni, ngelixa ukuqaqamba kulungelelaniswa yi-amplitude ye-echo ye-ultrasonic kwindawo ehambelanayo yendawo, kwaye i-abscissa imele isalathiso se-beam yesandi umzimba womntu.
Ixesha lokuposa: May-28-2022