MiRTLE Medical is developing a high-fidelity, MRI-compatible 12-lead ECG monitoring system, which is currently unavailable due to MRI induced interference. The predominant electrical interference is the direct pickup of the MRI’s energy through the electrode wires and can be eliminated with a combination of custom engineered filters and advanced signal processing. The secondary interference is a physiological effect the magnetic field has on blood as it moves through the aorta and can be eliminated by sophisticated signal processing. These two solutions to eliminate the MRI’s interference along with the MRI-tuned patient safety cables, are the core of MiRTLE’s IP.

 

The 12-lead ECG monitoring device will present interference-free ECG signals to a cardiologist and gate the MRI during a heartbeat, thereby enabling the MRI to produce sharp images of the heart. Currently, the only monitoring is from 3-Lead devices which simply gate the MRI. These devices are not suitable for diagnostic monitoring of the patient.

12-lead ECGs are the standard of care for detecting acute ischemia as well as for a variety of functional heart diseases. With MRI’s increasing role in detecting central-nervous system and orthopedic diseases, patients with ischemic history are increasingly referred for MRI exams. In addition, there are now more situations, such as trauma (stroke, spinal injury) or pediatric imaging, where MRI is performed on sedated or anesthetized patients, which require advanced ECG monitoring.  Interest is also growing in MRI-guided interventions and surgery, where patients lie in the magnet for more time, and the level of risk, such as of an acute ischemic event (restricted blood flow), or incurring Ventricular Tachycardia (rapid heartbeat) or Ventricular Fibrillation (cardiac arrest), is inherently greater. For such interventions, rapid detection of cardiac events is a pre-requisite, as a prelude to life support (defibrillation, CPR).

 

PATIENT SAFETY

Traditional electrode placement burns skin. Therefore, existing devices restrict cable length by dictating a tight electrode placement pattern, which cannot produce a diagnostic grade ECG.

The ECG signal with the subject inside the MRI is distorted due to moving blood interacting with the MRI’s magnetic field, known as the Magneto- hydrodynamic effect (MHD)

Download MiRTLE Product Overview

MRI INTERFERENCE

Gradient induced voltage (10,000x ECG) obliterates ECG.

MRI INTERFERENCE

Gradient induced voltage (10,000x ECG) obliterates ECG.

MiRTLE DEVICE PERFORMANCE

Perfect diagnostic grade ECG even with MRI operational.

  • Custom designed and manufactured cable eliminates absorbed energy, thereby eliminating any heating of electrodes
  • A combination of analog and digital filters remove MR interference
  • Digital signal processing removes MHD effect

PRODUCT VERSIONS

SAFETY

  • Custom cable design (patent pending)
  • Defibrillation proof
  • No magnetic pull

EASE OF USE

  • Wireless patient connection
  • Dual imaging modality support without wires
  • Improved beat detection decreases cardiac scan time

COMPATIBILITY

  • Available to all MRI devices
  • Zero distortion to MRI
  • Connectivity to existing CardioLab & Sensis monitors

PATIENT HEALTH MONITORING DURING
AN MRI

  • Visibility for cardiologists and electrophysiologists
  • Diagnostic grade ECG
  • Real-time interference removal

© 2016-2017 MiRTLE Medical, LLC | 1600 Osgood Street | Suite 2017 | North Andover, MA  01845 | info@mirtlemed.com | 978.688.8825