Cardioscan Description

WHAT IS MAGNETOCARDIOGRAPHY (MCG)

Magnetocardiography (MCG) is a method of non-invasive registration and analyses of magnetic component of an electromagnetic field of heart arising due to its electrical activity during cardiocycle.

Basic principles of MCG:

The cardiac electric activity that produces a voltage difference on the body surface (resulting in the ECG trace) produces simultaneously a magnetic field that extends outside the body (resulting in an MCG trace). MCG signals, unlike ECG signals, are not attenuated by surrounding anatomical structures, tissue, and body fluids, thereby providing more accurate information. Vortex currents in the myocardium produce magnetic signatures that are not visible on the ECG, thereby MCG provides more information.

The MCG is a non-invasive electrophysiological mapping technique that provides unprecedented insight into the generation, localization, and dynamic behavior of electric current in the heart. MCG is also being used for (1) non-invasive localization of sources of arrhythmia; (2) diagnosis of fetal cardiac disorders; and (3) screening patients for ischemic heart disease.

Advantages of MCG:

• Extraordinary high sensitivity to local myocardial currents.
• Lack of contortions of a signal on boundaries of tissues with different electric properties.
• No radiation.
• No injection.
• Fast examination.
• Both qualitative & quantitative results.
• Limitless examination periodicity.

PRODUCT DESCRIPTION

CARDIOSCAN X9 fills a gap in the diagnosis of heart between non-invasive, but low sensitivity usual methods of diagnosis (such as electrocardiography – ECG), and invasive (e.g. coronary angiography). Patients suspected of having coronary artery disease, but with normal electrocardiogram, can be accurately classified through Cardioscan X9, taking into account the degree of myocardial ischemia.

If the magnetic field is measured using a multichannel device, a map of the magnetic field is obtained over the chest; from such a map, using mathematical algorithms that take into account the conductivity structure of the torso, it is possible to locate the source of the activity. For example, sources of abnormal rhythms or arrhythmia, may be located by MCG.

PRODUCT OPERATING PRINCIPLE

CARDIOSCAN X9 registers changes in the magnetic field caused by the electrical activity of the heart during cardiocycle. Maximum sensitivity sensors – Superconductive Quantum Interference Device (SQUID), cooled in cryostat by liquid helium to the temperature of – 269ºC, are capable of detecting changes in a very weak magnetic signal.

Application of sophisticated active and passive protection of the detector allows to install equipment even in susceptible to communications disruption rooms. Automatic sliding table for the patient, bundled with fixed detectors, allow to playback electromagnetic maps of electrical activity of heart the size of 20 x 20 cm. Developed method, using SQUID-technology, is highly promising for application in daily clinical practice.

PRODUCT CLINICAL APPLICATION

Due to its non-invasiveness, accuracy and informativeness, CARDIOSCAN X9 method extends the area in which it can be applied with high efficiency. Some of the main indications:

• Unclear chest pain.
• Coronary vascular disease in patients.
• Acute myocardial infarction.
• Monitoring of patients after medical
• Monitoring of patients after surgical
• Monitoring of patients with heart
• Monitoring of burn patients during treatment.