20xx年醫(yī)學(xué)專題—心臟超聲-盧川1-文庫吧資料
2024-10-31 12:24本頁面
【正文】 期單峰型 加速與減速均較慢幾乎呈圓鈍型,第五十六頁，共一百頁。o)，減速波圓鈍，幾乎呈不對稱三角形,第五十五頁，共一百頁。,三尖瓣口血流頻 PWtricuspid valve,SV置于心尖四腔心斷面三尖瓣口右心室側(cè) 頻譜與二尖瓣口相似，只是速度偏低,受呼吸(hūxī)影像較大 血流頻譜呈窄帶雙峰型 第一峰較大， 稱E 峰， 第二峰較小，稱A峰,第五十四頁，共一百頁。nfng)容積(Sample Volume, SV)置于心臟大血管的不同部位,可獲得該部位的血流頻譜曲線,曲線橫軸代表時間,縱軸代表血流速度,從頻譜曲線上可了解血流的性質(zhì)、方向 、流速,第五十二頁，共一百頁。,頻譜多普勒超聲心動圖 Spectral Doppler,Pulsed Wave Doppler (PW) Continuous Wave Doppler (CW),第五十一頁，共一百頁。ng)于肺動脈主干及分支,第四十九頁，共一百頁。,左心室流出道血流,第四十八頁，共一百頁。,在心尖五腔心斷面可見(kěji224。,心尖(xīnjiān)四腔心斷面可見舒張期經(jīng)二尖瓣口紅色明亮的寬帶血流,起自左心房至左心室,左心室流入道血流,第四十五頁，共一百頁。ichōng)式 Pulsed Wave Doppler (PW) 連續(xù)式 Continuous Wave Doppler (CW) 彩色多普勒血流顯像 Color Doppler Flow Imaging (CDFI),第四十三頁，共一百頁。,Parallel motion of both aortic walls toward the transducer during systole and away from the transducer during diastole,Echocardiogram of Aortic Root 心底(xīndǐ)波群,Aortic valve cusps are positioned in middle of aorta during diastole ,open abruptly during systole at onset of ventricular ejection in a “boxlike” fashion,第四十二頁，共一百頁。,Area 3 二尖瓣前葉波群 RVAW= right ventricular anterior wall RVOT=right ventricular outflow tract IVS= interventricular septum LVOR=left ventricular outflow tract AML=anterior mitral valve leaflet LAPW=left atrial posterior wall,第四十頁，共一百頁。n)。 B點:二尖瓣恢復(fù)原位，再處于半關(guān)閉狀態(tài) C點:左室收縮，二尖瓣關(guān)閉所致 CD 段:二尖瓣在收縮期的關(guān)閉期,第三十八頁，共一百頁。,二尖瓣前后葉波群（2b區(qū)） E峰:二尖瓣前葉在舒張期的快速開放(kāif224。nh242。ng)波群 RVAW= right ventricular anterior wall RVOT=right ventricular outflow tract IVS= interventricular septum LVOR=left ventricular outflow tract LVPW=left ventricular posterior wall,第三十六頁，共一百頁。,Area1心尖(xīnjiān)波群 RVAW= right ventricular anterior wall RVOT=right ventricular outflow tract IVS= interventricular septum LVOR=left ventricular outflow tract LVPW=left ventricular posterior wall,第三十五頁，共一百頁。nh242。,MMode Imaging of The Cardiac Structures,第三十三頁，共一百頁。,Suparsternal View,The flow velocity is displayed with faster velocities in brighter colors
畢業(yè)設(shè)計相關(guān)推薦
鄂ICP備17016276號-1