KOSMOS User Guide 35
CHAPTER 4 Incorporating ECG and
DA Signals
Overview
ECG
Electrocardiography is the process of recording the electrical activity of the heart
over a period of time using electrodes placed over the skin. These electrodes
detect the tiny electrical changes on the skin that arise from the heart muscle's
electro physiologic pattern of depolarizing and re-polarizing during each
heartbeat. The graph of voltage versus time produced by this noninvasive
medical procedure is an electrocardiogram (ECG). The horizontal axis represents
time, and the vertical axis represents voltage.
With respect to the KOSMOS ECG capability, the KOSMOS ECG feature uses a
three-lead, single-channel ECG that allows the acquisition and display of a single
ECG lead, which can be any of Lead I, Lead II, or Lead III.
The KOSMOS ECG feature is used with the Kosmos ECG patient cable. One end of
the Kosmos ECG patient cable connects to Kosmos Torso, and the other end has
three RA/LA/LL leadwires. The leadwires and associated clips are connected to
the patient using the standard RA/LA/LL configuration. This allows, at any one
time, for a single ECG lead (either Lead I, Lead II, or Lead III) to be acquired and
displayed by KOSMOS. The user can select which lead to acquire and display by
using Kosmos Bridge.
ECG has been traditionally used in ultrasound to provide a timing reference for
the cardiac cycle, and it can do the same for digital auscultation (DA). KOSMOS
ECG serves as a timing reference for both ultrasound and DA signals, and it can
also be used to look at the acquired and displayed ECGleadfor heart rate
measurement and rhythm assessment by qualified and trained healthcare
professionals.
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