منابع مشابه
Electrical impedance of cardiac muscle.
I T HAS long been held that transmission of excitation from cell to cell in cardiac muscle is effected by local-circuit current. Recent electron microscopy" has shown that the myocardium is not a morphological syncytium; the intercalated discs are actually cell boundaries. If the resistances of the disc membranes are high, then local-circuit current transmission is unlikely, and the major possi...
متن کاملApplications of Electrical Impedance Tomography in Neurology
Introduction: Electrical impedance tomography (EIT) is a non-invasive technique utilized in various medical applications, including brain imaging and other neurological diseases. Recognizing the physiological and anatomical characteristics of organs based on their electrical properties is one of the main applications of EIT, as each variety of tissue structure has its own electrical characteris...
متن کاملDetermination of Cardiac Ejection Fraction by Electrical Impedance Tomography
where PV is the volume of blood pumped, that is given by the difference between the end-diastolic volume (EDV) and the end-systolic volume (ESV). Cardiac ejection fraction is a relevant parameter because it is highly correlated to the functional status of the heart. To determine the EF, different non-invasive techniques can be used, like echocardiography, cardiac magnetic resonance and computed...
متن کاملEvaluation of cardiac parameters using electrical impedance plethysmography.
UNLABELLED Impedance plethysmography is a method for determining changes in body tissue volumes, based on the measurement of electric impedance at the body surface. Because it is a non-invasive and cost-effective method to measure and analyze hemodynamics, it would bring to physiologists very important diagnostic information for the continuous care of critical patients with hemodynamic disorder...
متن کاملElectrical impedance myography detects age-related muscle change in mice
Loss of muscle mass and strength represents one of the most significant contributors to impaired function in older adults. Convenient and non-invasive biomarkers are needed that can readily identify and track age-related muscle change. Previous data has suggested electrical impedance myography (EIM) has the potential to serve in this capacity. In this study we investigated how changes in EIM co...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1961
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.9.6.1280