中国心血管杂志
中國心血管雜誌
중국심혈관잡지
Chinese Journal of Cardiovascular Medicine
2015年
5期
347-350
,共4页
超声心动描记术%斑点追踪成像技术%二尖瓣关闭不全%二尖瓣成形术
超聲心動描記術%斑點追蹤成像技術%二尖瓣關閉不全%二尖瓣成形術
초성심동묘기술%반점추종성상기술%이첨판관폐불전%이첨판성형술
Echocardiography%Speckle tracking imaging%Mitral insufficiency%Mitral valvuloplasty
目的：应用二维斑点追踪成像技术(2D-STI)测量二尖瓣成形术患者左室各节段心肌应变值,探讨2D-STI 定量评价二尖瓣成形术患者心功能的临床价值。方法选取行二尖瓣成形术患者25例,在术前(A 组)、术后1周(B 组)、术后6个月(C 组),分别对其进行常规超声心动图测量,包括：左房径(LAD)、左室舒张末内径(LVIDd)、左室射血分数(LVEF)。采集标准切面分别测量各组患者各节段心肌收缩期峰值纵向应变(LS)、径向应变(RS)、圆周应变(CS)值。选取25例健康志愿者作为对照组(N 组),两组间各参数进行比较。结果(1)术后各期 LVEF 与术前 LVEF 比较,差异无统计学意义。 B、C 组与 A 组比较,LAD、LVIDd 均下降,差异有统计学意义(均为 P ＜0.05)；(2) A组与 N 组各节段比较,纵向峰值应变明显减低(均为 P ＜0.05)；B 组与 A 组比较,各节段纵向峰值应变变化不明显(均为 P ＞0.05)；C 组与 A 组各节段比较,收缩期纵向峰值应变有所增加(均为 P ＜0.05)；(3)基底水平及乳头肌水平 A 组与 N 组比较,收缩期峰值圆周应变明显减低(均为 P ＜0.01)；(4)左室短轴乳头肌水平 B、C 组与 A 组比较,径向应变峰值均增加(均为 P ＜0.05)；C 组基底水平及乳头肌水平各节段峰值径向应变均基本接近 N 组,差异无统计学意义(均为 P ＞0.05)。结论2D-STI 在左室整体收缩功能改变以前能够早期发现左室局部心肌收缩功能异常,斑点追踪成像技术能够定量评价二尖瓣成形术患者左心功能的改变。
目的：應用二維斑點追蹤成像技術(2D-STI)測量二尖瓣成形術患者左室各節段心肌應變值,探討2D-STI 定量評價二尖瓣成形術患者心功能的臨床價值。方法選取行二尖瓣成形術患者25例,在術前(A 組)、術後1週(B 組)、術後6箇月(C 組),分彆對其進行常規超聲心動圖測量,包括：左房徑(LAD)、左室舒張末內徑(LVIDd)、左室射血分數(LVEF)。採集標準切麵分彆測量各組患者各節段心肌收縮期峰值縱嚮應變(LS)、徑嚮應變(RS)、圓週應變(CS)值。選取25例健康誌願者作為對照組(N 組),兩組間各參數進行比較。結果(1)術後各期 LVEF 與術前 LVEF 比較,差異無統計學意義。 B、C 組與 A 組比較,LAD、LVIDd 均下降,差異有統計學意義(均為 P ＜0.05)；(2) A組與 N 組各節段比較,縱嚮峰值應變明顯減低(均為 P ＜0.05)；B 組與 A 組比較,各節段縱嚮峰值應變變化不明顯(均為 P ＞0.05)；C 組與 A 組各節段比較,收縮期縱嚮峰值應變有所增加(均為 P ＜0.05)；(3)基底水平及乳頭肌水平 A 組與 N 組比較,收縮期峰值圓週應變明顯減低(均為 P ＜0.01)；(4)左室短軸乳頭肌水平 B、C 組與 A 組比較,徑嚮應變峰值均增加(均為 P ＜0.05)；C 組基底水平及乳頭肌水平各節段峰值徑嚮應變均基本接近 N 組,差異無統計學意義(均為 P ＞0.05)。結論2D-STI 在左室整體收縮功能改變以前能夠早期髮現左室跼部心肌收縮功能異常,斑點追蹤成像技術能夠定量評價二尖瓣成形術患者左心功能的改變。
목적：응용이유반점추종성상기술(2D-STI)측량이첨판성형술환자좌실각절단심기응변치,탐토2D-STI 정량평개이첨판성형술환자심공능적림상개치。방법선취행이첨판성형술환자25례,재술전(A 조)、술후1주(B 조)、술후6개월(C 조),분별대기진행상규초성심동도측량,포괄：좌방경(LAD)、좌실서장말내경(LVIDd)、좌실사혈분수(LVEF)。채집표준절면분별측량각조환자각절단심기수축기봉치종향응변(LS)、경향응변(RS)、원주응변(CS)치。선취25례건강지원자작위대조조(N 조),량조간각삼수진행비교。결과(1)술후각기 LVEF 여술전 LVEF 비교,차이무통계학의의。 B、C 조여 A 조비교,LAD、LVIDd 균하강,차이유통계학의의(균위 P ＜0.05)；(2) A조여 N 조각절단비교,종향봉치응변명현감저(균위 P ＜0.05)；B 조여 A 조비교,각절단종향봉치응변변화불명현(균위 P ＞0.05)；C 조여 A 조각절단비교,수축기종향봉치응변유소증가(균위 P ＜0.05)；(3)기저수평급유두기수평 A 조여 N 조비교,수축기봉치원주응변명현감저(균위 P ＜0.01)；(4)좌실단축유두기수평 B、C 조여 A 조비교,경향응변봉치균증가(균위 P ＜0.05)；C 조기저수평급유두기수평각절단봉치경향응변균기본접근 N 조,차이무통계학의의(균위 P ＞0.05)。결론2D-STI 재좌실정체수축공능개변이전능구조기발현좌실국부심기수축공능이상,반점추종성상기술능구정량평개이첨판성형술환자좌심공능적개변。
Objective To investigate the clinical value of two-dimensional speckle tracking imaging (2D-STI) technique for quantitative evaluation of cardiac function in patients with mitral valvuloplasty using 2D-STI measuring left ventricular myocardial strain of each segments. Methods Twenty five patients with successful mitral valvuloplasty were enrolled and accepted 2D echocardiography and 2D-STI measurements including left atrial diameter ( LAD), left ventricular end-diastolic diameter ( LVIDd), left ventricular ejection fraction ( LVEF) and left ventricular systolic peak longitudinal strain ( LS ), systolic peak circumferential strain (CS) and systolic peak radial strain ( RS); which were performed at pre-operation (group A), a week (group B) and 6 months (group C) after operation, respectively. Twenty five healthy subjects were selected as control group (group N). Results (1)Compared with group A, LAD and LVIDd in both group B and group C decreased significantly ( all P < 0. 05) . (2) Compared with group N, the values of LS of different segments in group A decreased significantly (all P < 0. 05); while the values of LS in group B and group A were similar. (3) The CS in group A decreased significantly comparing to that in group N (P < 0. 01). (4) The RS of the papillary muscle increased significantly in group B and group C comparing to that in group A ( P < 0. 05), RS in group C and group N were similar ( P > 0. 05) . Conclusions 2D STI can detect the regional myocardial systolic dysfunction before the change of left ventricular ejection fraction. In addition, it can quantitatively evaluate the change of left ventricular function in patients post the mitral valvuloplasty.
