کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2936192 1576391 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Real-time myocardial contrast dobutamine stress echocardiography in coronary stenosis
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
Real-time myocardial contrast dobutamine stress echocardiography in coronary stenosis
چکیده انگلیسی

BackgroundSimultaneous wall motion and myocardial perfusion analysis could offer advantages over either method alone. Diagnostic utility of combining these parameters during dobutamine stress echocardiography is evaluated in this study.MethodsMyocardial contrast dobutamine stress echocardiography was performed on thirty-eight patients with single or double vessel coronary artery stenosis of > 50%. Two-dimensional standard wall motion images were acquired at baseline, low, intermediate and peak stages of dobutamine stress echocardiography. Contrast enhanced wall motion and perfusion were assessed with Cadence Contrast Imaging (Sequoia C256, Acuson) and Optison infusion (GE Healthcare) at baseline and peak stages of the same protocol. Perfusion was analysed by identification of contrast defects and by measuring contrast replenishment time after destructive ultrasound pulses.ResultsThe group consisted of 28 males and 10 females, mean age 60.9 ± 9.7 years. Fifty-four out of one hundred and fourteen coronary arteries were affected by stenoses > 50%. Standard wall motion analysis was assessable in 37 cases, one of which was inconclusive, while contrast wall motion and perfusion were assessable in 32 cases. Accuracy for coronary stenosis was 84% for standard wall motion (108 coronary territories), 82% for contrast wall motion (96 territories), 69% for peak stress contrast defects (83 territories), 91% for combined peak stress contrast defects and increased contrast replenishment time (85 territories), and 90% for all contrast modalities combined (96 territories).ConclusionCombined wall motion and real-time perfusion assessment during dobutamine stress is feasible and at least equivalent to conventional stress echocardiography for detection of significant coronary stenosis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Cardiology - Volume 113, Issue 1, 26 October 2006, Pages 19–24
نویسندگان
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