News | Sep 27, 2021

“What’s new in nuclear medicine?” in United Imaging’s portfolio

In the issue 3/2021 of the magazine "Inżynier i Fizyk Medyczny" we recommend article by Agata Zakrzewska “What’s new in nuclear medicine?” in United Imaging’s portfolio.

Agata Zakrzewska
Product & Application Manager MI/CT CEE United Imaging Healthcare Poland, tel. +48 784 555 711, e-mail: agata.zakrzewska@united-imaging.com

Fig. 1. United Imaging’s molecular imaging portfolio
Source: UIH.

 

United Imaging Healthcare joins the virtual conference of the Polish Society of Nuclear Medicine (PTMN) as a partner

“What’s new in nuclear medicine?” was the core theme of the PTMN conference held between 20 and 22 May 2021.

The conference, flawlessly organized under the direction of its excellent Scientific Committee, revolved around important topics in diagnostic imaging, isotope therapy, theranostics and ionizing radiation safety, as well as nuclear medicine challenges brought on by the COVID-19 pandemic.

United Imaging Healthcare Europe, as a partner of the event, took this opportunity to offer a first glimpse at its extensive clinical and preclinical portfolio, as well as the latest additions to its molecular imaging product offering.

 

Fig. 2. The principal theme of the virtual conference of the Polish Society of Nuclear Medicine (PTMN) held between 20 and 22 May 2021
Source: https://medycynanuklearna-online.pl/#program.

 

United Imaging’s new product line-up announced at the CMEF Spring 2021

United Imaging Healthcare, a global leader in advanced medical imaging, has announced a new PET-CT technology platform called uExcel.1 The uExcel technology platform combines a number of major hardware and software innovations which provide significant performance enhancements, more powerful imaging capabilities, richer system functionalities, improved patient safety and an even better user experience.

 


Fig. 3. United Imaging’s stand at CMEF Spring 2021
Source: UIH.

 

uMI Panorama – a new model of the digital PET-CT positron emission tomography system

The conference featured a presentation of the latest UDP digital detectors, which represent a core component of the platform and ensure highperformance coincidence detection and ASIC signal transmission. The modular detector design allows for the axial field of view (FOV) to be easily extended to accommodate the system’s diverse clinical applications.

 


Fig. 4. uMI Panorama
Source: UIH

 

This advanced digital detector design allowed United Imaging to launch uMi Panorama – the latest PET-CT system model, expected to receive CE certification in 2022. The new system has an adjustable AFOV between 35 and 105 cm. The technology, which allows for larger patient body areas than ever before to be examined in a single bed position, thus builds on the trend initiated by the uEXPLORER® system – the first total body PET-CT system in the world designed by United Imaging.

 


Fig. 5. New United Imaging Healthcare digital detectors
Source: UIH.

 

uExcel also relies on artificial intelligence algorithms for examination planning to facilitate the process and enhance lab efficiency.

Also worth noting are the new clinical applications of uExcel Explore, previously only available on uEXPLORER®. 2 The technology platform will provide users with access to all applications, opening up new clinical and scientific opportunities for all United Imaging system users.

 

Groundbreaking PET data reconstruction algorithms

Besides its new PET-CT system based on the innovative uExcel platform, United Imaging Healthcare also presented its latest PET imaging data reconstruction algorithms.

The first one is HYPER Iterative3 – an iterative algorithm used for PET data reconstruction which improves lesion detectability and quantification accuracy through noise control in each individual iteration. Compared to standard OSEM data reconstruction with 30 and 2 iterations it is clear that HYPER Iterative produces similar image quality to the OSEM 2 reconstruction, while SUV measurement accuracy is comparable to that of OSEM 30.

 


Fig. 6. A comparison of the results of the PET HYPER Iterative data reconstruction algorithm (on the right, SUV 4.02) to 2 OSEM iterations (on the left, SUV 2.04) and 30 OSEM iterations (in the middle, SUV 4.03)
Source: UIH.

 

Another new algorithm is HYPER DLR, based on deep learning through artificial neural networks. 4 It is an algorithm created using a model developed by United Imaging in uEXPLORER®, fed with uEXPLORER® data for learning and then implemented across all other clinical systems. The main purpose of the algorithm is to reduce image noise and achieve better or comparable image quality from data obtained in a much shorter acquisition time. Figure 7 shows its comparison with a 7.5-minute whole body scan reconstructed using a standard algorithm (on the left) and a 2-minute scan reconstructed using a standard algorithm (in the middle), where image quality is significantly poorer. On the right is a 2-minute scan of the same patient body area reconstructed using the new HYPER DLR algorithm.

 


Fig. 7. A comparison of the results of the PET HYPER DLR data reconstruction algorithm (on the right, 2-minute scan), a 7.5-minute OSEM reconstruction (on the left) and a 2-minute OSEM reconstruction (in the middle).
Source: UIH.

 

HYPER DPR5 is another new algorithm which improves the signal-to-noise ratio, improves scanning performance and boosts image contrast and lesion detection. Figures 8 and 9 present a comparison of the HYPER DPR algorithm with the standard OSEM algorithm.

 


Fig. 8. A comparison of the results of the PET HYPER DPR data reconstruction algorithm (on the right) and an OSEM reconstruction (on the left).
Source: UIH.

 

United Imaging Healthcare Europe – looking deeper

Based on profound understanding of patients’ and physicians’ needs, we develop and produce a full portfolio of advanced medical equipment for diagnostic imaging and treatment. The breakthrough technological solutions we create help people improve their quality of life. Our products and solutions are currently used by over 6,900 clients from 35 countries worldwide. Now they are also available in Poland and other countries of Central and Eastern Europe.

 


Fig. 9. A comparison of the results of the PET HYPER DPR data reconstruction algorithm (at the bottom) and an OSEM reconstruction (at the top).
Source: UIH.

 

1 CE certification is expected in 2022.
2 CE approved.
3 CE-approved.
4 CE-approved.
5 CE certification is expected in 2022.

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