Transoesophageal Doppler echocardiographic measurement of cardiac output by the mitral annulus method
نویسندگان
چکیده
منابع مشابه
Transoesophageal Doppler echocardiographic measurement of cardiac output by the mitral annulus method.
OBJECTIVE To compare cardiac output measured by the transoesophageal Doppler and thermodilution techniques. DESIGN Prospective direct comparison of paired measurements by both techniques in each patient. SETTING Intensive care unit in a cardiovascular centre. PATIENTS 65 patients after open heart surgery (mean (SD) age 53 (12) years). INTERVENTIONS Cardiac output was measured simultaneo...
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Cardiac output was determined in 20 patients with various cardiac conditions by measuring the cross sectional area of the mitral orifice by echocardiography and the transmitral flow by the Doppler technique. Cardiac output was calculated by multiplying the corrected mitral orifice area by the maximum diastolic velocity integral recorded by the pulsed mode. The results were compared with that ob...
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The current echo method for measuring cardiac output (CO) has various technical limitations and is based on the assumptions that the left ventricle is not dilated and that it contracts uniformly. We have taken a different approach to measuring CO by echo: CO = cross-sectional area of aortic root X left ventricular ejection time X mean aortic flow velocity X heart rate. Using the Fick method, 34...
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ژورنال
عنوان ژورنال: Heart
سال: 1992
ISSN: 1355-6037
DOI: 10.1136/hrt.68.11.510