In cardiac, ciculatory and micro-circulatory diagnostics: measurement of circulation times, measurement of cardiac output and stroke volume, measurement of end-systolic ventricular volume, measurement of intrathoracic blood volume, measurement of circulationg blood volume,measurement of partial volumes, measurement of organ perfusion-measurement of intra-and extracardiac shunts, measurement of intracardiac valvular insufficiency, measurement of peripheral perfusion (e.g. perfusion of extremities, eyes). In liver function diagnostics: measurement of excretory function of the liver, determination of partial functions of the liver.