کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1763015 | 1019736 | 2007 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of Mitral E/A Ratio on the Accuracy of Different Echocardiographic Indices to Estimate Left Ventricular End-Diastolic Pressure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
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چکیده انگلیسی
The objective was to determine the influence of left ventricular (LV) inflow pattern on the accuracy of different echocardiographic indices for estimation of LV end-diastolic pressure (LVEDP). Echocardiography with color tissue Doppler imaging (TDI) and LVEDP measurements using fluid-filled catheters were performed in 176 consecutive patients on the same day. Mitral peak diastolic velocities (E, A) and the difference in duration between pulmonary venous retrograde velocity and mitral A-velocity (PVR-A) were recorded by pulsed Doppler. Propagation velocity of the early mitral inflow (VP) was assessed using color M-mode. Early diastolic longitudinal (Eâ²lat) and radial (Eâ²radial) velocities of mitral annulus were measured by TDI. Area under ROC curve (AUC) for prediction of elevated LVEDP (â¥15 mm Hg) was computed for each parameter. For E/A â¥1 (98 patients, 46 with elevated LVEDP), the AUC values were: PVR-A: 0.914; E/Eâ²lat: 0.780; E/Eâ²radial: 0.729; E/VP: 0.712 (p < 0.001). When E/A <1 (78 patients, 26 with elevated LVEDP), only PVR-A reached statistical significance (AUC = 0.893, p < 0.001). The conclusions were: PVR-A enabled the most accurate noninvasive estimation of LVEDP irrespective of LV filling profile and combined indices E/VP, E/Eâ²lat and E/Eâ²radial represent more feasible alternatives for patients with mitral E/A-1. (E-mail: tpoerner@googlemail.com)
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 33, Issue 5, May 2007, Pages 699-707
Journal: Ultrasound in Medicine & Biology - Volume 33, Issue 5, May 2007, Pages 699-707
نویسندگان
Tudor C. Poerner, Björn Goebel, Stefan Kralev, Jens J. Kaden, Tim Süselbeck, Karl K. Haase, Martin Borggrefe, Dariusch Haghi,