User's Manual Part 3
6-6
6.1.3.2. Applying the ECG Electrode
ECG safety and quality during MRI procedures can be greatly affected by the quality of patient
preparation. To prepare the electrode site, follow these steps:
A. Preparing the Electrode Site
1. Select the electrode sites
2. Check the electrode expiration date
3. Shave any hair from the application site
B. Placing the Electrode on the Patient
4. Apply a sufficient amount of 1813 Skin Prep Gel to a gauze pad or cloth
5. Using a circular motion, rub the selected electrode sites with the Skin Prep Gel (skin
may turn pink)
6. Remove any Skin Prep Gel from the skin so the electrode will adhere
7. Apply an authorized and approved electrode to the patient
8. Connect the lead wires to the electrode
NOTE
• Do not place the ECG Electrode on top of breast tissue
• ECG Electrodes can be placed underneath breast tissue
• If the T wave is elevated larger than expected inside the MRI magnet, try applying a new
RA and LA electrodes in a lower position
C. Checking ECG Quality
9. Observe the displayed ECG waveform on the monitor. Check amplitude of the QRS
complex , to adjust touch the scale setting either directly indicating on the display (just
below the channel indicator in the upper left of the display) or in the ECG menu.
NOTE
• The ECG Scale changes how the ECG waveform is sized and has no effect on ECG
quality.
D. Make any needed adjustments
10. If the QRS complex is less than optimum try viewing another lead configuration.
Example, try LEAD I instead of LEAD II
11. If the QRS complex amplitude is less than 1/3 of the ECG Scale Indicator on all lead
choices remove the electrodes and prep the site again.
E. ECG Wire and POD Placement
12. Keep the ECG ePOD outside of the Field of View
13. Keep the lead wire straight and avoid “U”, “C” or “S” shapes
F. ECG Filter Selection
14. Select the appropriate filter for the ECG application
a. The 3880 is equipped with “Monitor” and “MRI” filters. Select “ MRI” when the
patient is inside the MRI bore.
6.1.3.3. Setup Checklist
• Electrode/gel is within expiration date and moist
• Electrodes have good skin contact
• Electrodes are positioned correctly