Chinese scientists successfully developed the world's first digital positron emission tomography imager

Learned from Wuhan Optoelectronics National Laboratory (Preparation), Professor Xie Qingguo of Huazhong University of Science and Technology led the research team and successfully developed the world's first digital positron emission tomography (PET). The tumors tracked by this digital PET are only one-twentieth of the smallest tumors that can be found by commercial PET, which helps to find tumors and diagnose cancer earlier and more sensitively.

Xie Qingguo said that the first digital PET has completed 13 cases of lung cancer, liver cancer, ovarian cancer and other cancer rats, 16 cases of Alzheimer's disease rats, and 30 cases of normal mouse models. These studies have comprehensively verified the performance of the instrument, especially confirming the major breakthrough in spatial resolution.

Since 2001, Xie Qingguo ’s team of 13 disciplines, including medical, engineering, and science, have invented a “multi-voltage threshold sampling method”, which has successfully obtained sufficient information and accurately obtained the “signal” to be measured. , To achieve accurate image reconstruction, and then through the collaborative innovation of learning, research and production, completed the entire R & D process from the discovery of digital PET theory, to the industrial production of key detectors, to commercial machine assembly and animal imaging experiments.

Zhang Yongxue, chairman of the Nuclear Medicine Branch of the China Nuclear Society and professor of the PET Center of the Union Hospital of Huazhong University of Science and Technology, said that any improvement in resolution is a revolutionary breakthrough in medicine, which means the extension of life for patients and the doctor. The best time and precision of treatment; digital PET can improve the performance of the PET system to a new level, and can detect and diagnose diseases earlier.

Dr. Gao Jianmin, a tenured professor at the University of Chicago and a well-known expert in the field of PET imaging, believes that Xie Qingguo has pioneered digital PET, and the most urgent is to transform technology into industrial advantages and realize the industrial upgrading and leapfrog development of China's cutting-edge medical imaging equipment.

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