The Quadtrode electrodes serve as patient connection points for
the ECG lead cable clips. Different Quadtrode electrodes are
available to meet each monitoring requirement. The
components of a Quadtrode electrode are detailed below.
Work Flow for ECG Monitoring
When monitoring ECG, many factors will impact the performance and operation of the
To prepare a patient for ECG monitoring
Expression MR400 Instructions for Use Monitoring ECG 5‐3
Electrode contact (four contacts are
provided on the standard and neonatal
types, and one contact on the CV type
Lead retainer (not present on CV and
The site selected on the patient,
The ECG lead cable and Quadtrode electrode pairing,
The selected filter and lead view setting for the monitor,
Module placement and ECG lead cable routing; and,
Scan sequence selection and scan sequence parameters on the MRI console.
Select the Patient Type.
See Selecting the Patient Type on page 3‐11.
According to the patient type, their body mass, and the study to be
performed, choose a recommended ECG lead cable and Quadtrode
See Selecting the ECG Lead Cable and Quadtrode Electrode Type on
Decide where to apply the Quadtrode electrode to the patient.
See Identifying the Placement Site for the Quadtrode Electrode on