The Marquette MAC 15--one of the most versatile instruments you'll ever own
The Marquette MAC 15 Electrocardiograph is a breakthrough in diagnostic versatility. It performs five important cardiac diagnostic tests:
- Computerized 12-lead Electrocardiography
- Signal-Averaged Electrocardiography
- Pacemaker Evaluation
- Vectorcardiography
- Full-Disclosure Holter
Test options may be added separately at any time. This flexible, cost-effective multifunction design offers substantial advantages over dedicated systems.
Computerized 12-lead electrocardiography
With fast, automatic operation, Marquette MAC 15 is the ideal instrument for handling your electrocardiographic workload. Simply attach the electrodes and push one button--MAC 15 does the rest. It collects 10 seconds of EKG data simultaneously from up to 15 leads, performs a complete analysis of waveform rhythm and morphology, and prints a full-size report. It also provides pediatric 15-lead reports and records 12 leads of real-time rhythm. The microprocessor-controlled thermal writer has only one moving part for high reliability and minimal maintenance.
Using hybrid micro-electronics, Marquette MAC 15 sets new standards for ECG signal quality. A compact acquisition module digitizes waveforms directly at the patient's side, providing unsurpassed fidelity in up to 15 leads of EKG data. Software-based, MAC 15 may be easily updated by simply replacing the program cartridge. This unique feature virtually eliminates obsolescence.
Marquette 12SL TM analysis
The Marquette MAC 15's computer-based analysis uses the same proven 12SL program once available only with room-sized EKG systems. Continually fine-tuned and updated by the world's leading electrocardiographers and our own dedicated research staff, the Marquette program has earned the trust of thousands of cardiologists worldwide. With the ability to analyze both adult and pediatric EKGs, the 12SL analysis program processes nearly one in every four EKGs taken in the United States.
Storage and communications
Marqutee MAC 15 contains a floppy disk drive for storing EKG records in a convenient, transferable form. The MAC 15 can store as many as 150 complete EKGs on a single 3.5-inch floppy disk. Stored EKGs may be overread and edited on the Marqutte MAC 15 itself. In addition, when equipped with an optional modem, the MAC 15 can transmit EKGs to and receive them from another MAC cart or any of the more than 500 Marquette MUSE central processing centers around the world.
Signal-averaged electrocardiography
In the standard electrocardiograph mode, the Marquette MAC 15 records the high-amplitude, low-frequency electrical signals of the cardiac cycle. When equipped with the Hi-Res TM option, the Marqutte MAC 15 captures and records in the high-frequency, low-amplitude range. Research has shown that these signals contain a wealth of information not available in the conventional EKG. High-resolution, signal-averaged electrocardiography has the potential for many diagnostic applications. Currently its most significant clinical application is as a diagnostic test for identifying cardiac late potentials.
Cardiac late potentials
Possible harbinger of sudden death
Cardiac late potentials are believed to be one of the leading indicators of life-threatening ventricular tachycardia, or sudden cardiac death. Recent evidence shows that if patients with late potentials can be identified, their risk of sudden death can be significantly reduced with available therapeutic measures.
Now with the Hi-Res option, you can perform late potential analysis quickly and at the patient's bedside. More importantly you can perform late potential analysis without expensive dedicated equipment.
Easy operation
The Marquette MAC 15 is extremely easy to use as a late potential analyzer. Simply apply the electrodes to the patient, then select the number of QRS complexes or noise level to be used in the averaging process. The MAC 15 automatically and precisely aligns and averages eight seconds of waveforms to produce a template. The "seed" beat used for template generation is user-selectable. After template generation, the MAC 15 automatically collects QRS complexes for signal averaging. Strict integral quality control excludes any abnormal or noisy QRS complexes from the averaging process.
Final report in minutes
One of the distinctive benefits the Marquette MAC 15 offers as a late potential analyzer is that it combines data acquisition, signal processing, reanalysis, and report generating functions in one transportable cart. This means that you have the finished report in hand immediately after the study.
Multiple report formats
Marquette MAC 15 provides periodic plots during the averaging process, including unfiltered and filtered X, Y, and Z lead averaged complexes, vector magnitude, noise level, and standard deviation of the noise. These periodic plots provide both visual and numeric indication of data integrity during the averaging process. Standard and expanded final report formats are available for 25, 40, and 80 Hertz filter settings. The expanded report format also provides initial and terminal RMS voltage functions. In addition, the report includes calculations for standard and total QRS durations; high-frequency, low-amplitude signal duration; and RMS and mean voltages in the terminal 40 milliseconds.
Remanufactured to full standards and specification in patient ready condition with all standard accessories!
90 day warranty 
