کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2861155 1572382 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Usefulness of Pulmonary Arterial Flow Discordance to Identify Pulmonary Embolism
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
Usefulness of Pulmonary Arterial Flow Discordance to Identify Pulmonary Embolism
چکیده انگلیسی

The present study was undertaken to determine the sensitivity and specificity of echocardiography in the diagnosis of pulmonary embolism (PE). The study consisted of 2 stages. First, 600 patients were enrolled to measure bilateral pulmonary blood flow by echocardiography. Using multidetector row computed tomography, 200 subjects were diagnosed with pulmonary hypertension and 100 with defined PE. Another 300 subjects without cardiopulmonary distress served as controls. The time-velocity integral (TVI) and flow volume of both pulmonary arteries were obtained. The percentage differences in bilateral pulmonary arterial TVI (ΔTVI/mean) were 12.0 ± 9.3%, 13.8 ± 12.1%, and 38.6 ± 14.9% for controls, subjects with pulmonary hypertension, and subjects with PE, respectively. The percentage differences in bilateral pulmonary flow (Δflow/mean) were 15.1 ± 11.7%, 17.6 ± 14.9%, and 36.8 ± 17.5% for controls, subjects with pulmonary hypertension, and subjects with PE, respectively. By receiver-operating characteristic curve analysis, the cut-off points for ΔTVI/mean and Δflow/mean to identify PE were 25% and 26.5%, respectively. In the second part of study, the accuracy of ΔTVI/mean and Δflow/mean to screen 300 patients with suspected PE was tested. Echocardiography provided high degrees of sensitivity and specificity for the diagnosis of PE. In conclusion, bilateral pulmonary arterial flow measurement is a simple and useful test to assess the possibility of PE.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The American Journal of Cardiology - Volume 99, Issue 4, 15 February 2007, Pages 579–583
نویسندگان
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