A healthy cardiovascular system can provide adequate oxygen to all the organs and maintains a balance between oxygen demand and oxygen delivery. The cardiovascular system’s primary function is the transport of oxygen, using blood as the vehicle. Hemodynamics is an important part of cardiovascular physiology related to the force that the pumping heart has to use to circulate blood through the cardiovascular system. It is a diagnostic tool to measure hemodynamics, which is how blood flows. With each heartbeat, the blood volume and velocity in the aorta changes, the ICG measures the corresponding change in impedance and its timing. The patient just needs to lie still and remain quiet during the test. Four pairs of electrodes on sticky pads are placed at the neck and the diaphragm level, delineating the thorax to detect the ECG signal, which is basically used as a timing clock of the cardiovascular system. For some men, a small area of the chest may need to be shaved for the sticky pads to adhere. To prepare, the patient just needs to wear a shirt that opens in the front. It is used to detect the impedance changes via a high-frequency, low magnitude current flowing through the chest between two pairs of electrodes located outside of the measurement area. The test measures changes over a continuous period to record data such as heart rate, cardiac output, ventricular ejection time, and stroke volume.
Impedance Cardiography (ICG) is a non-invasive technology that measures the total electrical conductivity of the thorax, the area between the neck and the abdomen.
0 kommentar(er)
