Siemens Healthineers has unveiled its Biograph Vision.X PET/CT scanner at the 2023 Annual Meeting of the Society of Nuclear Medicine & Molecular Imaging (SNMMI) in Chicago. 

The Biograph Vision.X incorporates Optiso Ultra Dynamic Range (UDR) detector technology, which utilizes silicon photomultipliers (SiPMs). This offering allows for the use of small lutetium oxyorthosilicate (LSO) crystal elements measuring only 3.2 mm x 3.2 mm. The utilization of these tiny LSO crystals, fully covered by SiPMs, results in advanced spatial resolution. 

Moreover, the scanner achieves a 48-mm volumetric resolution and a temporal resolution of 178 ps.  Siemens officials say that, consequently, the Biograph Vision.X offers a 20% performance improvement (TOF gain), enhancing patient throughput while reducing radiation exposure and radiotracer costs.

James Williams, PhD, head of Siemens Healthineers Molecular Imaging, spoke out about this feature, commenting: “The Biograph Vision.X PET/CT scanner builds on the success of our Biograph Vision system and underscores our commitment to leading the industry in time of flight for improved lesion detection and enhanced anatomical detail. This improvement in TOF translates into increased sensitivity and better imaging performance.”

“Precision of this caliber is increasingly vital as PET/CT imaging is now employed by physicians throughout the entire patient care cycle, from diagnosis to therapy monitoring and post-therapy follow-up,” he adds. “Such precision is particularly invaluable in theranostics, where diagnostic and therapeutic capabilities are combined to aid in treating patients with recurrent prostate cancer.”

Additionally, the Biograph Vision.X incorporates the AIDAN imaging platform, leveraging artificial intelligence (AI) to streamline operations and expedite the diagnostic process. AIDAN’s methodology draws on more than 700 machine- and deep-learning patents developed by Siemens Healthineers. Finally, the Biograph Vision.X features a 78-cm bore and facilitates positioning for radiotherapy devices or bariatric patients.