![]() These signatures arise due to pathological blood flow characteristics and a blood conductivity that strongly depends on the flow field, i.e., the proposed method is, in principle, applicable to any aortic pathology that changes the blood flow characteristics. State-of-the-art medical imaging techniques have several disadvantages therefore, we propose the detection of aortic dissections through their signatures in impedance cardiography signals. An early identification and treatment increases patients’ chances of survival. Aortic dissection has a low incidence compared to other diseases, but a relatively high mortality that increases with disease progression. Myocardial contractility and cardiopathology were also considered.Īn aortic dissection, a particular aortic pathology, occurs when blood pushes through a tear between the layers of the aorta and forms a so-called false lumen. However, the reliability of the technique was found to depend greatly upon its use within a limited range of applications. It was concluded that impedance cardiography provides a reliable intra-subject estimation of relative changes in stroke volume and cardiac output. Reports regarding the development of the method for NASA, and numerous investigations comparing impedance cardiography to indicator dilution and other methods were discussed. The purpose of this review was to integrate recent evidence supporting the reliability of thoracic impedance plethysmography as an estimator of cardiodynamic function.
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