Digital PET team successfully develops the second generation of "digital PET"

Hubei Radio, Television and Financial Media reporters recently learned from the State Medical Products Administration that a new generation of all-digital PET/CT developed by the digital PET team of the School of Life Sciences of Huazhong University of Science and Technology, model DigitMI 930, has passed the registration and certification of Chinese medical devices and has been officially allowed to enter the market
.
Relevant indicators show that DigitMI 930 can complete the scanning and imaging of a single bed in 20 seconds, and the whole body scanning only takes 80 seconds, and the imaging speed of a single bed is the first
in the world.

Previously, the first generation of clinical full digital PET/CT has been running stably in Ezhou Central Hospital in Hubei Province for two and a half years, "catching" cancer lesions
for thousands of patients in advance.
The new generation of digital PET has completed the technical iteration in continuous practice and feedback, and the current progress is a typical result of cross-cooperation between medicine and industry, which is of great significance
to the national economy and people's livelihood.

The new generation of clinical all-digital PET/CT 930 single-bed imaging speed ranks first in the world

According to the reporter of Hubei Radio and Television Financial Media, the first PET/CT imported from the United States in Hubei Province was settled in the PET Center
of Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology in 2003.
As of 2021, more than 30 PET equipment has been installed in Hubei Province, of which the import rate is about 90%.

"Taking the most commonly used 18F-FDG PET imaging as an example, the usual injection dose is 0.
1~0.
12 millicuries per kilogram, the single-bed scanning time is 1-1.
5 minutes, each patient has 6-7 beds, and the whole body scan
is completed in about 10 minutes.
In the fastest case, it can be completed in 1 minute per bed, that is, 6-7 minutes for the whole body
.
Professor Lan Xiaoli, director of the Department of Nuclear Medicine of Union Medical College Hospital, introduced

Zhang Bo, head of digital PET team industrialization and general manager of Ruishi Medical, told reporters, "The all-digital PET/CT 930 realizes 20-second imaging for a single bed, 80 seconds for full-body scanning, and the scanning speed of a single bed is the
first in the world.
This means that the scanning time of patients is at least 1/6 of the past, which significantly improves examination efficiency, reduces application costs, and greatly alleviates the problem
of difficult queuing and expensive high-end medical imaging examinations such as PET.

It is worth mentioning that the all-digital PET/CT 930 continues to use the completely self-developed digital PET technology solution, and adopts the unique MVT all-digital sampling module to achieve the current comprehensive leading technical indicators: sensitivity up to 17 kcps/Mbq, time resolution better than 249 picoseconds, spatial resolution (iterative algorithm) better than 1.
6 mm
.

Professor Xiao Peng, a core member of the digital PET team, said that the new generation of clinical all-digital PET/CT930 not only achieves the iterative upgrade of version 2.
0 on the crystal, optoelectronic device and MVT digital sampling unit, but also realizes self-feedback and optimization through the accumulation of "full data" of raw signals, intermediate data and clinical images.

The high-end medical device terminal market should give the people the opportunity to use "domestic products"

Although all-digital PET has been highly recognized by the scientific and industrial circles at home and abroad, there are still great difficulties
in the road to promotion.
Zhang Bo revealed to reporters that in recent years, in contact with clinical users, it was found that they mainly held two attitudes: one was pleased with the development of domestic equipment, but did not dare to try it easily, and still held a skeptical wait-and-see attitude: the other was still highly superstitious about imports, and even became the "iron powder"
of import manufacturers.
In his recent work, he found that some smaller prefecture-level city hospitals are more obsessed with buying imported PET equipment, and even do not hesitate to use "radish bidding" to formulate unscientific and unreasonable product parameters, which violates the basic laws of
market competition.

Zhang Bo said, "As a technology research and development team, the digital PET team has clearly realized that practical application is a top priority
.
At the same time, he also revealed to reporters that the all-digital PET technical standards and specifications "will also be officially implemented in 2023, which means that digital PET technology has formed a leading
direction in this direction.
"

"Compared with traditional technology, the technological update of digital PET can be smoothly and quickly transferred into products
.
At the same time, after more than a year of hard work, the team has achieved an ultra-high time resolution of 160 picoseconds in the laboratory, completed the system verification in the prototype, and will soon be able to update to the next generation of
products in the future.
Associate Professor Zhou Xiaoyun, a key member of the team and the School of Life Science and Technology of Huazhong University of Science and Technology, introduced
.

In the view of the digital PET team, in the grand and arduous cause of human fighting disease, researchers can still do very little
.
After solving many technical challenges, the challenges of technology application, equipment application, and market acceptance have just begun
.

"Because of this, we look forward to attracting more clinicians, imaging experts, radiochemists, and industry elites to collaborate to produce more innovative systems and deeper applications, and are committed to maintaining the autonomy and control of digital PET technology by promoting the autonomy and control of the market
.
" Especially in Hubei, where digital PET was born, we look forward to the opportunity for ordinary people to use 'domestic products
'.
Zhang Bo told reporters
.

(Source: Hubei Radio and Television Financial Media)