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Safety and Efficacy of MCG for Diagnosing Coronary Heart Disease

This study has been completed.
CardioMag Imaging
Information provided by:
Mayo Clinic Identifier:
First received: September 12, 2005
Last updated: February 14, 2011
Last verified: February 2011

A magnetocardiograph (MCG) is a medical device capable of recording the magnetic fields that arise from the electrical activity of the heart. It was developed for the general purpose as a noninvasive, non-contact diagnostic tool of obstructive coronary artery disease (CAD), and especially of cardiac ischemia. The overall objective of the present study is to demonstrate the efficacy of this MCG device in the diagnosis of lack of oxygen to an area of the heart (as in an Heart attack) in patients presenting with chest pain.

Condition Intervention Phase
Myocardial Ischemia
Device: Magnetocardiograph
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double-Blind
Primary Purpose: Diagnostic
Official Title: Safety and Efficacy of the CMI Magnetocardiograph Model 2409 for Diagnosing Coronary Heart Disease

Resource links provided by NLM:

Further study details as provided by Mayo Clinic:

Primary Outcome Measures:
  • Primary endpoint will be final clinical diagnosis of ischemia by the primary treating physician. This decision will be based upon evaluation of symptoms, clinical presentation, 12-lead ECG, cardiac enzymes (Troponin I or CKMB).

Secondary Outcome Measures:
  • 1. Correlation of MCG with anatomic patency and TIMI flow on coronary angiography
  • 2. Correlation of MCG with functional and laboratory tests

Enrollment: 250
Study Start Date: July 2003
Study Completion Date: July 2007
Primary Completion Date: July 2007 (Final data collection date for primary outcome measure)
Detailed Description:

The CMI-2409 magnetocardiograph (MCG) is an FDA-approved medical device capable of noninvasive recording of magnetic fields arising from the electrical activity of the heart. This system was developed by CMI for the general purpose of noninvasive, non-contact diagnostics of obstructive coronary artery disease (CAD), and especially of cardiac ischemia. The overall objective of the present study is to demonstrate the efficacy of this MCG device and of the associated MCG method for the detection and diagnosis of ischemia in chest pain patients.

The primary objective is to demonstrate that the diagnostic accuracy of the MCG device and method is equivalent to or better than that of a standard 12-lead ECG for detecting the presence of ischemia in patients presenting with chest pain of unknown etiology. In this study the rest MCG data will be analyzed and compared to the results of a rest ECG.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Subjects with chest pain syndrome or angina equivalent

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00170027

United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
CardioMag Imaging
Principal Investigator: Peter A. Smars, M.D. EM Mayo Clinic
  More Information

Additional Information:
No publications provided Identifier: NCT00170027     History of Changes
Other Study ID Numbers: 999-03
Study First Received: September 12, 2005
Last Updated: February 14, 2011
Health Authority: United States: Institutional Review Board
United States: Food and Drug Administration

Additional relevant MeSH terms:
Coronary Artery Disease
Coronary Disease
Heart Diseases
Myocardial Ischemia
Arterial Occlusive Diseases
Cardiovascular Diseases
Vascular Diseases processed this record on November 25, 2014