Debugging wa akupanga kujambula diagnostic chida
Kujambula kwa akupanga kwagwiritsidwa ntchito kwambiri pozindikira za opaleshoni, mtima, oncology, gastroenterology, ophthalmology, obstetrics ndi gynecology ndi matenda ena.M'zaka zaposachedwapa, pa dzanja limodzi, chitukuko cha akupanga kujambula matenda chida zonse kufufuza matenda atsopano ntchito, Komano monga ultrasound kulingalira mu matenda a zinachitikira ndi kumvetsa ntchito ya akupanga kujambula chida, madokotala ndi ntchito. mu khalidwe la akupanga kujambula matenda chida ndipo nthawi zambiri kuika patsogolo zosiyanasiyana zofunika ndi Malingaliro, kuti osati kulimbikitsa ultrasonography matenda mlingo timapitiriza mosalekeza, Komanso, kugwiritsa ntchito akupanga kujambula wakhala mozama, ndi matenda luso la akupanga kujambula yapangidwa. .
1. Yang'anirani zolakwika
Kuti mupeze chithunzi chapamwamba chamtengo wapatali wa matenda, zinthu zosiyanasiyana zimafunika.Pakati pawo, debugging wa akupanga matenda chida polojekiti n'kofunika kwambiri.Pambuyo poyatsa ndi kuwunikira, chithunzi choyambirira chikuwonetsedwa pazenera.Yang'anani ngati riboni yotuwirayo yatha musanakonze zolakwika, ndikuyika positi-ntchitoyo motsatira mzere.Kusiyanitsa ndi Kuwala kwa chowunikira kumatha kusinthidwa momwe mukufunira.Chotsani chowunikira kuti chikhale choyenera, ngakhale chikuwonetsa bwino zambiri zaudziwitso zosiyanasiyana zoperekedwa ndi wolandirayo, ndipo ndizovomerezeka ndi masomphenya a wodziwa.Mtundu wa grayscale umagwiritsidwa ntchito ngati muyeso pakuwongolera, kotero kuti imvi yotsika kwambiri imawonekera mwakuda.Mulingo wotuwa kwambiri ndi mawonekedwe oyera owala koma owala, sinthani magawo onse a imvi ndipo amatha kuwonetsedwa.
2. Sensitivity debugging
Sensitivity imatanthawuza kuthekera kwa chida chowunikira cha ultrasound kuzindikira ndikuwonetsa mawonekedwe.Zimaphatikizapo kupindula kwathunthu, pafupi ndi kuponderezedwa kwamunda ndi malipiro akutali kapena kupindula kwakuya (DGC).Kupindula kwathunthu kumagwiritsidwa ntchito kusintha kukweza kwa voteji, panopa kapena mphamvu ya chizindikiro cholandira cha chida cha ultrasonic diagnostic.Mlingo wa phindu lonse umakhudza mwachindunji kuwonetsera kwa chithunzicho, ndipo kusokoneza kwake ndikofunikira kwambiri.Nthawi zambiri, chiwindi chamunthu wamkulu chimasankhidwa kukhala njira yosinthira, ndipo chithunzi chenicheni cha chiwindi chakumanja chokhala ndi mitsempha yapakati pa hepatic ndi mtsempha wa hepatic wakumanja chimawonetsedwa ndi subcostal oblique incision, ndipo phindu lonse limasinthidwa kotero kuti kulimba kwa chiwindi kumamveka. parenchyma pakati pa chithunzi (4-7cm dera) ili pafupi kwambiri ndi imvi yomwe ikuwonetsedwa pakati pa imvi.Depth gain compensation (DGC) imadziwikanso kuti time gain compensation (TGC), sensitivity time adjustment (STC).Pamene mtunda wa zochitika za ultrasonic wave ukuwonjezeka ndikufowokeka pakufalitsa kwa thupi la munthu, chizindikiro chapafupi ndi munda nthawi zambiri chimakhala champhamvu, pamene chizindikiro chakutali chimakhala chofooka.Kuti mupeze chifaniziro chakuya kofanana, kuponderezedwa pafupi ndi munda ndi malipiro akutali ayenera kuchitidwa.Mtundu uliwonse wa akupanga chida zambiri utenga mitundu iwiri ya chipukuta misozi mafomu: zoning ulamuliro mtundu (otsetsereka kulamulira mtundu) ndi kagawo kulamulira mtundu (mtunda ulamuliro mtundu).Cholinga chake ndi kupanga echo ya pafupi ndi munda (minofu osaya) ndi munda wakutali (minofu yakuya) pafupi ndi mlingo wa imvi wa munda wapakati, ndiko kuti, kupeza chithunzi chofanana kuchokera ku kuwala kupita ku imvi kwambiri, kuti athe kutanthauzira ndi matenda a madokotala.
3. Kusintha kwamitundu yosiyanasiyana
Dynamic range (yofotokozedwa mu DB) imatanthawuza kusiyanasiyana kwa ma siginecha otsika kwambiri mpaka apamwamba kwambiri omwe amatha kukulitsidwa ndi chokulitsa chida cha ultrasonic imaging diagnostic.Chizindikiro cha echo chomwe chikuwonetsedwa pachithunzi chomwe chili pansipa chocheperako sichimawonetsedwa, ndipo chizindikiro cha echo pamwamba pamlingo wapamwamba sichikulitsidwanso.Pakalipano, mitundu yosinthika yamphamvu kwambiri komanso yotsika kwambiri ya ma echo mu chida chambiri cha ultrasonic imaging diagnostic chida ndi 60dB.ACUSONSEQUOIA makina apakompyuta a ultrasound mpaka 110dB.Cholinga cha kusintha kosinthika ndikukulitsa kwathunthu chizindikiro cha echo ndi mtengo wofunikira wowunikira ndikufinya kapena kufufuta chizindikiro chosafunikira.Mitundu yosinthika iyenera kusinthidwa momasuka malinga ndi zofunikira za matenda.
Kusankhidwa koyenera kosinthika sikuyenera kuwonetsetsa kuwonetsa chizindikiro chochepa komanso chofooka cha echo mkati mwa chotupacho, komanso kuwonetsetsa kuti malire a zilonda ndi ma echo amphamvu.Kuchuluka kwamphamvu komwe kumafunikira pakuwunika kwa ultrasound m'mimba ndi 50 ~ 55dB.Komabe, kuti muwone mosamalitsa komanso momveka bwino komanso kusanthula minyewa ya pathological, mitundu yayikulu yosinthika imatha kusankhidwa ndipo kusiyanitsa kwazithunzi kumatha kuchepetsedwa kuti alemeretse chidziwitso chodziwikiratu chomwe chikuwonetsedwa mu chithunzi cha acoustic.
4. Kusintha kwa ntchito yowunikira mtengo
Kusanthula minyewa yamunthu yokhala ndi mtengo woyimbira woyimba kumatha kusintha kusintha kwa ultrasound pamapangidwe abwino a malo (chotupa), ndikuchepetsa kutulutsa kwazinthu zopangidwa ndi akupanga, motero kuwongolera chithunzicho.Pakali pano, akupanga molunjika makamaka utenga kuphatikiza zenizeni zenizeni nthawi elekitironi molunjika, variable kabowo, lamayimbidwe mandala ndi concave galasi luso, kuti chinyezimiro ndi phwando la akupanga akhoza kukwaniritsa uthunthu wonse wa kwambiri maganizo pafupi, pakati ndi kutali. minda.Pakuti akupanga matenda chida ndi ntchito ya segmentalized kuganizira kusankha, kuya molunjika akhoza kusinthidwa ndi madokotala pa nthawi iliyonse ntchito.
Nthawi yotumiza: May-21-2022