Scientists at Tohoku University in Japan, have developed a sensor for the living body that can detect the bio-magnetic field with high sensitivity and high resolution.
According to the scientists, the achievement was made by using a tunnel magnetoresistance (TMR) device to work at room temperature.
The research team led by Professor Yasuo Ando of the Graduate School of Engineering in association with Konica Minolta succeeded in detecting the heart's magnetic field by using the TMR device.
The TMR device helps measure cardiac electric activity in a non-aggressive way. With this device, the diagnosis of heart conditions such as coronary heart disease or arrhythmia can be greatly improved.
"In the future, a shielded room for identifying the bio-magnetic field would be unnecessary because this device has a large field range. This would mean that heart conditions can be measured in a more relaxed environment," the researchers wrote on the University website.
Experts believe that the device is expected to make a difference in medical treatments, preventive health care and sports.