The emergence of PM2.5 has brought great threat to people's lung health. How can we detect early lung disease and nip it in the bud? "Human lung gas magnetic resonance imaging system" is a new means of pulmonary imaging exploration, which is of great clinical significance for the early detection, diagnosis and treatment of lung diseases such as lung cancer and copd.

The scientific and technological achievement of the Institute of Precision Measurement Science and Technology Innovation of the Chinese Academy of Sciences, "Human lung gas magnetic resonance imaging system", has experienced the test of the epidemic in Wuhan. The innovative use of xenon gas as a contrast agent enables quantitative and visual accurate evaluation of lung ventilation, microstructure, and blood exchange function. It makes up for the "blind area" of the lungs in traditional MAGNETIC resonance imaging and successfully "lights up" the lungs.

"During the coVID-19 outbreak, this system was applied in tongji Hospital in Wuhan and Jinyintan Hospital in Wuhan, and a series of imaging assessments of pulmonary function of COVID-19 patients were conducted, which was highly recognized by doctors." Compared with the existing chest X-ray, CT, PET and other detection methods, the "human lung gas magnetic resonance imaging system" has the advantages of non-destructive and non-radiation.

"Conventional lung imaging instruments such as chest X-ray, CT and PET have radiation damage to human body. Compared with conventional imaging methods such as X-ray, magnetic resonance imaging (MRI) has unique advantages of non-radiation and non-invasive, but the lung is the only blind area for traditional MRI detection. We were able to literally 'light up' the lungs by creatively using hyperpolarized gases as a contrast agent." The system, which includes a hyperpolarized gas generator and a coil vest, produces xenon gas in a special machine that is inhaled and then donned to give magnetic resonance imaging (MRI) images of the lungs, according to staff at the site.

What's special about this gas? According to introducing, xenon is an inert gas, no harm to human body, and can dissolve in the blood, through laser pump polarization degree of the gas in the machine can improve the 50000 times, that would make vibration direction of the gas molecules can be unified, inhaled lung, repass ma3 jia3 to receive coil magnetic field magnetic resonance (NMR), can clear imaging.

Human lung gas images obtained by the magnetic resonance imaging instrument not only can show the trachea, bronchi and lung to complete, the structure of the lungs to detect early clinical CT can find lung ventilation lesions, and can condition, quantitatively and visually detect the change of the gas diffusion ability, the lungs of pulmonary ventilation function, exchange of qi and blood physiological function to carry on the quantitative evaluation, late after data processing, also can show the lungs three-dimensional reconstruction of rendering, implements the high-resolution mri (magnetic resonance imaging) from scratch across lung gas.