Core Insights - The article discusses the advancements in photon counting spectral CT technology, highlighting its superior resolution and reduced radiation exposure compared to traditional CT scans [1][4]. Group 1: Technology Advancements - The new photon counting spectral CT has a pixel size of 0.2 mm, which is 1/9 of the pixel area of traditional CT, allowing for detailed visualization of small structures such as the cochlea and vascular patterns during heartbeats [1][2]. - The radiation dose for patients has been reduced by 60% to 70%, with some examinations achieving a reduction of up to 90%, providing clearer diagnostic information while minimizing patient exposure [1]. Group 2: Clinical Applications - The technology is particularly effective in early detection of lung nodules, assessing coronary artery calcification risks, and analyzing tumor characteristics, thus aiding in determining whether a tumor is recurrent, metastatic, or benign [3]. - The photon counting spectral CT is expected to become a mainstream diagnostic tool, with significant potential for further research across various diseases [4]. Group 3: Development and Collaboration - The development of this technology involved collaboration among multiple institutions, including U-Medical, Zhongshan Hospital, and Ruijin Hospital, under a national key research program [4]. - The article emphasizes the ongoing evolution of this technology, indicating that it will continue to improve and play a crucial role in patient recovery and diagnosis [4].

中新网上海8月27日电 (记者 陈静)记者27日在此间获悉，中国在医疗科技领域实现重大突破，企业与医 院等携手自主研发的中国首款光子计数能谱CT ——uCT Ultima获得国家药品监督管理局(NMPA)批准上 市。这也是中国"十四五"国家重点研发计划重点专项"光子计数能谱CT研发"项目取得的重大进展。 据悉，光子计数能谱CT一直是备受行业关注的下一代CT技术的革命方向。相比于传统CT，光子计数能 谱CT搭载了半导体探测器，具有更高空间分辨率成像、直接多能谱成像以及更低辐射剂量成像的优 势，极大程度推进了精准诊疗。然而囿于高筑的技术壁垒，此前全球范围内仅有两家外资企业实现了光 子计数能谱CT的商业化。 据介绍，相比传统CT，中国自主研发的光子计数能谱CT在实现超高分辨率成像时，探测器的像素面积 减小到原来的1/9，可以呈现更细微病变结构。同时，创新的校正算法和重建算法，解决了像素面积减 小导致的信号强度降低的问题，抑制噪声并保证了图像质量。针对光子计数能谱CT大数据量处理这一 痛点，研发单位也进行了全面的技术创新，实现全准直覆盖的超高分辨率成像，在心脏等需要大范围覆 盖的检查中可做更深一步的探索。除此外，光子 ...

Core Insights - The first photon-counting spectral CT, uCTUltima, developed by United Imaging Healthcare, has received approval from the National Medical Products Administration (NMPA) for commercialization in China, marking a significant breakthrough in medical technology [1][2] - United Imaging Healthcare is the first Chinese company to successfully commercialize photon-counting spectral CT globally, overcoming high technical barriers that previously limited this technology to two foreign companies [1][2] Group 1 - The photon-counting spectral CT technology offers advantages over traditional CT, including higher spatial resolution imaging, direct multi-energy spectrum imaging, and lower radiation dose imaging, significantly advancing precision diagnosis and treatment [1][2] - The company has collaborated with several institutions, including Zhongshan Hospital and Ruijin Hospital, to leverage their strengths in machine development, clinical application, and testing for the photon-counting spectral CT project [2] - Innovations in detector design have reduced pixel area to one-ninth of traditional CT, allowing for the visualization of finer pathological structures while maintaining image quality through advanced correction and reconstruction algorithms [2] Group 2 - The photon-counting spectral CT can reduce radiation doses by 60% to 70%, and in some organs, reductions can reach 80% to 90%, enhancing patient safety during CT scans [2] - The technology has already been implemented in clinical research at Fudan University Zhongshan Hospital and Shanghai Jiao Tong University School of Medicine Ruijin Hospital [3]