新一代全息数字PET/CT “Discovery MI”来袭

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                    <section data-role="paragraph" data-color="rgb(182, 228, 253)" data-custom="rgb(182, 228, 253)"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section><p><p><img src="image/20201014/86b79d371e9862b01189f0252a03b2cd_1.png" /></p></p></section><section><section><span><strong></strong></span></section><p><span>医疗器械媒体报道先锋</span></p><p><span>分享专业医疗器械知识</span></p></section><section><section><section>关注</section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section><p><br  /></p><p><span>GE医疗中国近日对外发布了配备第三代全息数字探测器、创新性Ultra-TOF技术、实现3分钟全身扫描的超高端PET/CT产品——Discovery MI（以下简称DMI）</span></p><p><span><br  /></span></p><p><iframe src="https://v.qq.com/iframe/player.html?width=500&height=375&auto=0&vid=u08172mzj1m&auto=0" width="100%" height="580" frameborder="0"></iframe></p><p><span></span><br  /></p><section powered-by="gulangu"><section><section><p><span>这款新品的突破性创新在于：硬件层面采用最新一代CRD（Compton Recovery Digital）全息数字探测器，算法上实现<span>超级迭代的“Ultra TOF”技术，为临床诊断、鉴别诊断、疾病分期、疗效评估等各个不同阶段带来了灵敏度更高、图像质量更高、检查过程更高效的PET/CT影像平台</span>。尤其是Ultra TOF超级迭代技术的实现，不仅<span>突破了传统PET/CT在信噪比提升方面的技术瓶颈</span>，更是<span>实现了正则化25次迭代的同时，去除图像噪声</span>，引领核医学影像平台走向精准、定量成像的新纪元。</span></p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201014/8f1bde4a32ac22a3b613fd28f93398de_2.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><span><strong>GE医疗新一代全息数字PET/CT “Discovery MI”</strong></span></p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section></section><section></section><section></section></section></section><section powered-by="gulangu"><section><section><p><span>在我国，癌症是非常严峻的挑战，最新的统计显示，我国<span>每年癌症的新发病例</span><span>超过400万</span><span>，</span><span>占全球癌症发病总数的1/3</span>，加之目前医疗资源投入仍然集中在后期诊断、治疗，筛查和早期发现方面的工作还在逐步探索过程中，使得疾病救治的挑战日益严峻。</span></p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><span>PET/CT（正电子发射断层及X射线计算机体层摄影成像系统）是肿瘤疾病诊治最为常用和重要的影像设备之一，在病灶发现、鉴别以及后续治疗评估方面发挥重要作用。然而目前，据中华医学会核医学分会最新的数据统计，<span>我国百万人口PET/CT保有量为0.24台，这个数字在美国为7.8台，日本为3.8台</span>，差距非常大。</span></p><p><br  /></p><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p><span><strong>“全息数字”&nbsp;</strong></span></p><p><span><strong>毫米级病灶发现成为日常</strong></span></p></section></section></section></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><span>灵敏度对于PET/CT来讲是最为核心的性能表现，因为PET/CT就是通过对比正常细胞和肿瘤细胞的代谢差异来探查病变，对于这种差异捕捉的灵敏度决定了PET/CT性能的优异，也决定了PET/CT对于微小病灶发现能力的优异性。</span></p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><span>采用SiPM（硅PM）的探测器让PET/CT正式进入数字化时代，而今天，数字化的SiPM探测器，整合独有的拓扑结构设计以及CR（Compton Recovery，康普顿信号恢复）全息技术，<span>让GE的DMI实现了“全息数字化”</span>，克服了以往成像过程中由于散射产生的信号损失，实现<span>全信号采集</span>，达到更好的示踪剂注射量和信号采集量之间的平衡，进而实现更高的灵敏度，更敏锐地发现毫米级微小病灶。同时，全息数字化的实现，更是让PET扫描时间大大缩短，<span>全身扫描仅需3分钟</span>，检查体验大大提升。<span><em><span>（数据来源：GE全球DMI研发团队）</span></em></span></span></p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201014/342fdb7409fa36b45a47c3f8f8eae632_3.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><span><strong>DMI新品发布会现场</strong></span></p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p><strong><span>&nbsp;“超级迭代”&nbsp;&nbsp;</span></strong></p><p><strong><span>信噪比和SUV精准度双倍提升</span></strong></p></section></section></section></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><span>在算法上，DMI实现了超级迭代Ultra-TOF 技术，这个技术突破了以往10年来引领PET/CT发展的TOF技术，能够通过更加精密的迭代算法、嵌入式的噪声控制实现<span>图像信噪比提升2倍</span>，更精准计算摄取率（SUV）。<span><em><span>（数据来源：GE全球DMI研发团队）</span></em></span></span></p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p><span>TOF技术，即飞行时间技术，是通过测量来自正电子湮灭产生的一对光子到达相对两个探测器的时间差，计算出湮灭发生的具体位置的一项创新性技术，也被公认是在核医学领域非常突破性的技术，让传统PET/CT影像信噪比平均提升了12%。</span></p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p><span><span>Ultra-TOF又一次实现了算法上的突破，从目前2~3次迭代已经到达算法瓶颈直接跳跃到实现25次迭代计算，同时去除图像噪声，让图像信噪比实现了200%提升。</span>这样的创新给临床上带来的改变就是：图像更加清晰，5毫米范围的微小病灶显示更清晰，并通过更精准的代谢活性计算，提供给临床更加精准的、定量诊断信息。尤其是在疾病诊断鉴别和疗效评估阶段，可以通过更加准确的SUV值来判断肿瘤分期，判断治疗前后效果，制定更有针对性的治疗方案。</span></p></section></section></section></section></section></section></section></section></section></section></section></section><p><span>&nbsp;</span></p><section 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