Ukulungiswa kwesixhobo sokuxilonga nge-ultrasonic imaging
Imifanekiso ye-Ultrasonic isetyenziswe ngokubanzi ekuxilongeni utyando, i-cardiovascular, i-oncology, i-gastroenterology, i-ophthalmology, i-obstetrics kunye ne-gynecology kunye nezinye izifo.Kwiminyaka yakutshanje, kwelinye icala, uphuhliso lwesixhobo sokuxilonga i-ultrasonic imaging iphonononga rhoqo iklinikhi yezicelo ezitsha, kwelinye icala njengomfanekiso we-ultrasound ekuxilongweni kwamava kunye nokuqonda ukusebenza kwesixhobo somfanekiso we-ultrasonic, oogqirha kunye nomsebenzi. kumgangatho we-ultrasonic imaging diagnostic instrument kwaye ihlala ibeka phambili iimfuno ezahlukeneyo kunye neeNgcebiso, ukwenzela ukuba kungakhuthazi kuphela inqanaba lokuxilongwa kwe-ultrasonography liphucula ngokungapheliyo, Ngaphezu koko, ukusetyenziswa kwe-imaging ye-ultrasonic kuye kwagxininiswa, kwaye iteknoloji yokuxilonga ye-imaging ye-ultrasonic iye yaphuhliswa. .
1. Beka iliso ukulungisa ingxaki
Ukufumana umfanekiso womgangatho ophezulu wexabiso lokuxilonga, iimeko ezahlukeneyo ziyafuneka.Phakathi kwabo, ukulungiswa kwesixhobo sokuxilongwa kwe-ultrasonic kubaluleke kakhulu.Emva kokuba umamkeli kunye nokubeka iliso kunikwe amandla, umfanekiso wokuqala uboniswa kwiscreen.Jonga ukuba i-ribbon engwevu igqityiwe na phambi kokulungiswa kweempazamo, kwaye ubeke i-post-processing kwimo yomgca.Umahluko kunye nokuKhanya kwemonitha kunokuhlengahlengiswa kangangoko ufuna.Lungisa isibek'esweni ukuze usenze sifaneleke, nokuba sibonakalisa ngokwaneleyo ulwazi olwahlukeneyo loxilongo olunikwe ngumamkeli, kwaye lwamkelekile kumbono womxilonga.I-grayscale isetyenziswe njengomgangatho ngexesha lokulungiswa kweempazamo, ukwenzela ukuba i-grayscale ephantsi ibonakale kancinane kumnyama.Elona nqanaba lingwevu liphezulu kukuqaqamba komlinganiswa omhlophe kodwa kuqaqambile, uhlengahlengiso kuwo onke amanqanaba omgangatho ongwevu otyebileyo kwaye unokuboniswa.
2. Uvakalelo lokulungisa iimpazamo
Uvakalelo lubhekiselele ekukwazini kwesixhobo sokuxilonga se-ultrasound ukufumanisa nokubonisa imbonakalo yojongano.Ibandakanya inzuzo epheleleyo, ingcinezelo ekufutshane nentsimi kunye nembuyekezo ekude okanye imbuyekezo yokuzuza ubunzulu (DGC).Inzuzo epheleleyo isetyenziselwa ukulungelelanisa ukukhulisa amandla ombane, okwangoku okanye amandla omqondiso ofunyenweyo wesixhobo sokuxilonga se-ultrasonic.Inqanaba lenzuzo epheleleyo lichaphazela ngokuthe ngqo ukuboniswa komfanekiso, kwaye ukulungiswa kwayo kubaluleke kakhulu.Ngokubanzi, isibindi esiqhelekileyo somntu omdala sikhethwa njengemodeli yohlengahlengiso, kwaye umfanekiso wexesha langempela wesibindi esilungileyo esine-hepatic vein ephakathi kunye ne-right hepatic vein iboniswa yi-subcostal oblique incision, kwaye inzuzo iyonke ihlengahlengiswa ukuze i-echo intensity yesibindi. i-parenchyma embindini womfanekiso (indawo ye-4-7cm) isondele kangangoko kunokwenzeka kwisikali esingwevu esiboniswe embindini wesikali esingwevu.Imbuyekezo yokuzuza ubunzulu (DGC) ikwabizwa ngokuba yimbuyekezo yokufumana ixesha (TGC), uhlengahlengiso lwexesha lovakalelo (STC).Njengoko umgama wesiganeko se-ultrasonic wave ukhula kwaye ubuthathaka kwinkqubo yokusasaza yomzimba womntu, isignali ekufutshane nentsimi yomelele ngokubanzi, ngelixa isignali yentsimi ekude ibuthathaka.Ukuze ufumane umfanekiso wobunzulu obufanayo, ukunyanzeliswa kwentsimi ekufutshane kunye nembuyekezo yentsimi ekude kufuneka iqhutywe.Uhlobo ngalunye lwesixhobo se-ultrasonic luthatha ngokubanzi iintlobo ezimbini zeefom zembuyekezo: uhlobo lolawulo lwendawo (uhlobo lolawulo lwe-slope) kunye nohlobo lolawulo lwecandelwana (uhlobo lolawulo lomgama).Injongo yayo kukwenza i-echo yentsimi ekufutshane (izicubu ezingenzulu) kunye nebala elikude (izicubu ezinzulu) kufutshane nenqanaba elingwevu lendawo ephakathi, oko kukuthi, ukufumana umfanekiso ofanayo ukusuka ekukhanyeni ukuya kwinqanaba elingwevu olunzulu, ukuze kube lula ukutolikwa kunye nokuxilongwa koogqirha.
3. Ukulungelelaniswa koluhlu oluguquguqukayo
Uluhlu lwe-Dynamic (lubonakaliswe kwi-DB) lubhekiselele kuluhlu lweyona nto iphantsi ukuya kwi-echo yesignali ephezulu enokwandiswa yi-amplifier yesixhobo sokuxilonga se-ultrasonic imaging.Umqondiso we-echo oboniswe kumfanekiso ongaphantsi kobuncinci awubonakali, kwaye isibonakaliso se-echo ngaphezu kobuninzi asisaphuculwa.Okwangoku, uluhlu oluguquguqukayo lweyona miqondiso inamandla kwaye iphantsi ye-echo kwisixhobo sokuxilonga se-ultrasonic imaging jikelele yi-60dB.ACUSONSEQUOIA umatshini we-ultrasound owenziwe ngekhompyutha ukuya kuthi ga kwi-110dB.Injongo yokulungelelanisa uluhlu oluguquguqukayo kukwandisa ngokupheleleyo umqondiso we-echo kunye nexabiso elibalulekileyo lokuxilonga kunye nokuxinzelela okanye ukucima uphawu olungabalulekanga lokuxilonga.Uluhlu oluguquguqukayo kufuneka luhlengahlengiswe ngokukhululekileyo ngokweemfuno zokuxilonga.
Ukukhethwa koluhlu oluguquguqukayo olufanelekileyo akufanele kuqinisekise kuphela umboniso we-echo ephantsi kunye ne-echo signal ngaphakathi kwe-lesion, kodwa iphinde iqinisekise ukuba ivelele kumda we-lesion kunye ne-echo enamandla.Uluhlu oluguquguqukayo oluqhelekileyo olufunekayo kukuxilongwa kwe-ultrasound yesisu yi-50 ~ 55dB.Nangona kunjalo, ukujonga ngononophelo kunye nokubanzi kunye nokuhlalutya kwezicubu ze-pathological, uluhlu olukhulu oluguquguqukayo lunokukhethwa kwaye ukungafani komfanekiso kunokuncitshiswa ukutyebisa ulwazi lokuxilonga oluboniswe kumfanekiso we-acoustic.
4. Ukulungelelaniswa komsebenzi wokugxila kwi-beam
Ukuskena izicubu zomntu kunye ne-focus acoustic beam kunokuphucula isisombululo se-ultrasound kwisakhiwo esihle sendawo ekugxilwe kuyo (i-lesion), kunye nokunciphisa ukuveliswa kwezinto ze-ultrasonic, ngaloo ndlela kuphuculwe umgangatho womfanekiso.Okwangoku, ugxininiso lwe-ultrasonic luthatha indibaniselwano ye-real-time dynamic focusing, i-aperture eguquguqukayo, i-acoustic lens kunye ne-concave crystal technology, ukwenzela ukuba ukubonakalisa kunye nokwamkelwa kwe-ultrasonic kunokufezekisa uluhlu olupheleleyo olugxininise kakhulu kufuphi, phakathi nakude. amasimi.Kwisixhobo sokuxilonga se-ultrasonic esinomsebenzi wokukhethwa kwe-segmentalized focusing, ubunzulu bokugxila bunokulungiswa ngoogqirha nangaliphi na ixesha ngexesha lokusebenza.
Ixesha lokuposa: May-21-2022