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<p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; text-align: center; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><img src="http://mmbiz.qpic.cn/mmbiz/kFiaamOEjRian1HH0R0eUOoCeBLcQMwLwP8AhIKEgibEZWZ6Aj8JI7ctB2SCxKLuXUNfMEVnjyjE28FWL7b7WmoKQ/0" data-ratio="0.11928429423459244" data-w="" width="auto" width="auto" src="http://mmbiz.qpic.cn/mmbiz/kFiaamOEjRian1HH0R0eUOoCeBLcQMwLwP8AhIKEgibEZWZ6Aj8JI7ctB2SCxKLuXUNfMEVnjyjE28FWL7b7WmoKQ/0" style="color: rgb(62, 62, 62); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255); font-family: 宋体; font-size: 18.88888931274414px; word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important;" /><img src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCWXMptY0SnxSRiaPLGxwdvW5vMUA0VgZJc2IPD0WvuicuJSnF72sbqEFQ/0" class="" id="c0" data-ratio="0.5825049701789264" data-w="" src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCWXMptY0SnxSRiaPLGxwdvW5vMUA0VgZJc2IPD0WvuicuJSnF72sbqEFQ/0" style="padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; text-align: left; word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important; background-position: 0% 0%; background-repeat: repeat repeat;" /></p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> 医疗设备所面临的前景以及发展的空间和潜力促使行业创新产品不断涌现。在医学影像领域,医院放射科的主力设备——X线计算机体层摄影(CT)自上个世纪70年代发明、应用到临床至今已40余年,并取得了令人瞩目的飞速发展。尤其是在最近十年里, 更是日新月异,不断地推陈出新,多层螺旋CT技术的迅猛发展使CT的扫描速度和诊断能力显著提高。<br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;" /> 不断增长和深化的临床需求是推动CT技术持续发展的原动力,各大国际设备生产商在超高端CT的开发和设计上越来越关注临床应用功能的拓展,尽管各个生产厂家的发展思路各有不同,但是殊途同归,最终在心脏成像、能量成像、低剂量迭代成像等方面“心有灵犀”,达成共识,这些技术平台的功能整合和统一代表了未来超高端CT的发展潮流,比如Siemens公司的双源CT、GE公司的Revolution CT、Philips 3D微平板iCT等。<br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;" /> 超高端CT的技术发展深刻影响着64排128层CT的走向,作为医院目前常规检查的“中流砥柱”机型,128层CT在中国市场已经存在了5年,其发展经历了两个阶段:第一阶段2009年至2011年,128层CT正式进入中国市场并应用于临床,它的问世,一是实现了高心率下的64排冠脉CT常规检查, 解决了既往需要严格控制心跳次数和心动节律的问题,二是从形态学跨入到功能学时代,实现了全容积器官灌注和动态大范围血流分析。第二阶段2011年至2013年,迭代技术常规应用于临床,实现了高清低剂量的CT检查,为利用CT开展疾病筛查提供了稳定的技术支持保障。进入2014年,128层CT应该走向何方?</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; text-align: center; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><img src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCBqZ5oEicumxY6libIalG84gEIC5ryQzWurCXPOMHKIr4y6icOkicibwHksA/0" class="" id="c1" data-ratio="0.5825049701789264" data-w="" src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCBqZ5oEicumxY6libIalG84gEIC5ryQzWurCXPOMHKIr4y6icOkicibwHksA/0" style="padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; text-align: left; word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important; background-position: 0% 0%; background-repeat: repeat repeat;" /></p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; border: 0px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; background-position: 0% 0%; background-repeat: repeat repeat;"></strong></p><blockquote style="max-width: 100%; word-wrap: break-word; padding: 10px 15px; border-left-width: 10px; border-left-color: rgb(0, 187, 236); white-space: normal; color: rgb(51, 51, 51); font-family: 微软雅黑; top: 0px; line-height: 24px; font-size: 14px; vertical-align: baseline; background-color: rgb(239, 239, 239); box-sizing: border-box !important;"><p class="ue_t" style="margin-top: 0px; margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; padding: 0px; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 240);"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 18px;">趋势一:<span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(247, 150, 70); font-size: 18px;">萃取超高端CT的能量技术平台,实现更精准的临床应用</span></span></strong></span></p></blockquote><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> CT的发展在秉承提高时间分辨率、空间分辨率和密度分辨率等传统技术的同时,创新性的开拓了CT微观影像学广阔的应用领域,能量学成像。一个全新的CT工程学名词,能量分辨率的出现,克服传统CT的局限性,帮助CT实现了不受金属影响的全身自由成像,能够更好地发现微小病灶,并能进一步判定病变性质。使得CT从对宏观结构性观察深入到微观物质成分和元素的定性识别及定量分析,从而实现了CT的显微组织学诊断,因此能量成像受到业内越来越多的关注,成为了临床和科研的热点。中国医学装备协会编纂的《2014年中国CT市场研究报告》第三节CT技术发展趋势中明确指出:目前应用于临床的CT能量成像技术依据设备的不同,主要分为两大类:双源双能量成像和单源能谱成像。因此具备能谱成像功能的全新一代64排128层CT已成为行业发展的新趋势。</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; border: 0px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; background-position: 0% 0%; background-repeat: repeat repeat;"></strong></p><blockquote style="max-width: 100%; word-wrap: break-word; padding: 10px 15px; border-left-width: 10px; border-left-color: rgb(0, 187, 236); white-space: normal; color: rgb(51, 51, 51); font-family: 微软雅黑; top: 0px; line-height: 24px; font-size: 14px; vertical-align: baseline; background-color: rgb(239, 239, 239); box-sizing: border-box !important;"><p class="ue_t" style="margin-top: 0px; margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; padding: 0px; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 240);"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 18px;">趋势二:<span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(247, 150, 70); font-size: 18px;">智能的心脏成像技术,提高冠脉检查成功率</span></span></strong></span></p></blockquote><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> 心脏CT成像已成为一项非常成熟的心脏CT扫描技术,但是心脏CT成像与其它成像技术相比,因为心脏运动影响的存在,操作难度大,对技术人员的要求也较高,扫描成功率容易受到影响而下降。如何优化扫描流程、降低技术门槛、减轻医技负担,让高科技更加便捷而有效地应用到临床,服务于广大的病患,是医疗工作者和医疗设备生产厂家非常关注的事情和责任 。<br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;" /><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; border: 0px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; background-position: 0% 0%; background-repeat: repeat repeat;"></strong></p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; border: 0px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; background-position: 0% 0%; background-repeat: repeat repeat;"></strong></p><blockquote style="max-width: 100%; word-wrap: break-word; padding: 10px 15px; border-left-width: 10px; border-left-color: rgb(0, 187, 236); white-space: normal; color: rgb(51, 51, 51); font-family: 微软雅黑; top: 0px; line-height: 24px; font-size: 14px; vertical-align: baseline; background-color: rgb(239, 239, 239); box-sizing: border-box !important;"><p class="ue_t" style="margin-top: 0px; margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; padding: 0px; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 240);"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 18px;">趋势三:<span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(247, 150, 70); font-size: 18px;">绿色科技,节能环保</span></span></strong></span></p></blockquote><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> 节能、环保、可持续发展是不变的主题,CT影像的潮流在于用更低的成本和更低的辐射剂量前提下,满足日益增加的各类疾病的检查和人群体检的需求,同时保证设备能够更加稳定地运行,节约医院设备管理维护成本,同时能降低人民群众的就医检查费用,减轻国家医疗支出负担,从而实现经济效益和社会效益最大化。</p><blockquote style="max-width: 100%; word-wrap: break-word; padding: 10px 15px; border-left-width: 10px; border-left-color: rgb(0, 187, 236); white-space: normal; color: rgb(51, 51, 51); font-family: 微软雅黑; top: 0px; line-height: 24px; font-size: 14px; vertical-align: baseline; background-color: rgb(239, 239, 239); box-sizing: border-box !important;"><p class="ue_t" style="margin-top: 0px; margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; padding: 0px; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 240);"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 18px;">DNA能谱CT代表了128层CT影像的发展趋势</span></strong></span></p></blockquote><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> 精准、智能、绿色是影像科技发展的主题。这也逐渐形成了评价全新一代128层CT的金标准:1、151级更宽能谱成像平台,提高了能量分辨率;2、RRT心脏智能成像平台,“0经验、0失误、0等待”自动扫描,大幅提高冠脉检查成功率;3、SAFIRE双源迭代平台确保CT高清低剂量筛查。<br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;" /> DNA能谱CT的设计理念正基于此。全新一代能谱CT全面变革包括球管、高压发生器、探测器、重建算法、图像处理平台等在内的影像链各个环节,其特点是复合多项功能,完成将一种影像设备的有效利用效能最大化。针对影像设备有效使用问题,新一代DNA能谱CT具备“一机多用”的功能,在承继了既往64排128层CT的优秀基因,高心率冠脉检查和高清低剂量筛查的前提下,将萃取于双源双能量中的能谱成像功能、心脏智能化成像整合于一体,实现CT分子影像成像等检查,动态整合高端CT的多种功能,以一台多功能机器代替至少两到三台设备,节约医院机房建设成本、设备管理维护成本,对医院未来规划和长远发展具有非常实用的价值。<br style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;" /> 新一代DNA能谱CT极大体现了多功能、实用化、常规化的原则,全方位、多层次、流畅便捷的临床应用,丰富的影像信息和优质的图像,将临床影像诊断提高到了新的水平,是整合宏观和微观CT影像诊断技术的必然趋势,也是医院放射学科建设和医院可持续发展的必然选择。</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; text-align: center; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><img src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCaHFd7VPCKttWBgqLbnm66wyDicC36LeSnjH2ibWmicha54icgHKYBM6UIw/0" class="" id="c0" data-ratio="1.0666666666666667" data-w="450" src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCaHFd7VPCKttWBgqLbnm66wyDicC36LeSnjH2ibWmicha54icgHKYBM6UIw/0" style="font-size: 14px; line-height: 24px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; vertical-align: baseline; word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important; background-position: 0% 0%; background-repeat: repeat repeat;" /></p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; border: 0px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: transparent; vertical-align: baseline; background-position: 0% 0%; background-repeat: repeat repeat;"></strong></p><blockquote style="max-width: 100%; word-wrap: break-word; padding: 10px 15px; border-left-width: 10px; border-left-color: rgb(0, 187, 236); white-space: normal; color: rgb(51, 51, 51); font-family: 微软雅黑; top: 0px; line-height: 24px; font-size: 14px; vertical-align: baseline; background-color: rgb(239, 239, 239); box-sizing: border-box !important;"><p class="ue_t" style="margin-top: 0px; margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; padding: 0px; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 240);"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 18px;">DNA能谱CT技术背景</span></strong></span></p></blockquote><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> 目前市场上单源能谱成像平台主要有三种:</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> <em style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(255, 255, 255); background-color: rgb(247, 150, 70);"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; font-size: 16px; word-wrap: break-word !important; box-sizing: border-box !important;"> 第一种是高低kV瞬时切换技术。</span></strong></span></em>1986年Anders Hemmingsson等已经使用Siemens的Somatom DR2 CT实现了kV快速切换能谱采集技术。但2011年Ravi K、Mitcheli M等人的研究,以及2012年Daniella F等研究证实,这项技术存在不少重大缺陷。</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> <em style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; background-color: rgb(247, 150, 70); font-size: 16px; color: rgb(255, 255, 255);"> 第二种是“三明治”双层探测器法。</span></strong></em>这种技术采用了三明治类型的双层探测器设计:薄厚不同的两层探测器紧密排列在一起,在能量成像过程中,球管发射单一电压(120 kV或140 kV)的射线,首先经过上层探测器,射线中低能的部分被部分吸收,第二层探测器主要吸收高能部分,然后进行两组能量数据的分析。但这项技术也存在很多不成熟的地方,不能真正满足临床需要。专业人士认为,实现单源能谱技术的关键,在于如何解决高低能量投影数据不匹配和辐射剂量高这两个根本问题。</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> <em style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"> <strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 16px; background-color: rgb(247, 150, 70); color: rgb(255, 255, 255);"> 第三种就是DNA能谱成像。</span></strong></em>2014年西门子公司依托高端单源64排CT硬件平台,推出的DNA能谱成像技术,突破了上述技术瓶颈,实现了151级宽谱单能成像、常规剂量高清显示及更加精准的诊断。DNA能谱成像过程分为两部分:首先在原始数据空间对采集到的高、低能量投影数据进行同源配对,由于能量数据的求解过程是在原始数据空间完成的,因而免受器官的生理活动和可能的人体自主运动的干扰,保证了原始数据精准匹配,其次在图像空间进行物质信息融合,解析出151级更宽能谱的单能成像。DNA能谱CT具备30线对/厘米的最高空间分辨率和4608/圈的最高采样率,并集成迭代(IR)、管电流4D实时调制(CARE Dose 4D)、非对称屏蔽采集(Adaptive Dose Shield)射线屏蔽技术、自由螺距技术(SURE View)等常规低剂量技术,因此只需常规的辐射剂量就可得到清晰的图像,为准确定性、定量及诊断提供更多的信息。</p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; text-align: center; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"><img src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCSETbC0YE4KWUSktWfUy677c11lk2za36qAAruGSSdoFnGhlvicLlmibA/0" class="" id="c1" data-ratio="0.5825049701789264" data-w="" src="http://mmbiz.qpic.cn/mmbiz/bGcCKkQt47LRDJqx9En7LkH3HDRiat3MCSETbC0YE4KWUSktWfUy677c11lk2za36qAAruGSSdoFnGhlvicLlmibA/0" style="font-size: 14px; line-height: 24px; padding: 0px; margin: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; vertical-align: baseline; word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important; background-position: 0% 0%; background-repeat: repeat repeat;" /></p><p style="margin-top: 0px; margin-bottom: 20px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: normal; font-family: 微软雅黑; border: 0px; padding: 0px; outline: invert none 0px; background-image: none; background-attachment: scroll; background-color: rgb(246, 246, 246); font-size: 14px; vertical-align: baseline; color: rgb(51, 51, 51); line-height: 24px; box-sizing: border-box !important; background-position: 0% 0%; background-repeat: repeat repeat;"> DNA能谱成像突破了CT发展和应用的3大极限:1、发现更多——更宽的能谱CT;和以前能谱CT成像不同,实现了151个更宽谱单能成像,疾病检出能力提高1.5倍,可以提高微小肿瘤的早期发现、优化金属伪影去除效果等。2、常规剂量——更安全的能谱CT;首次将能谱扫描带入到常规检查中,与以前能谱CT比较,剂量下降60%以上,是目前更为安全的单源能谱CT,率先进入绿色能谱时代。3、精准诊断——信息更全面的能谱CT;完成形态学检查的同时,可以进行病灶来源的分析、肿瘤良恶性鉴别诊断、不同物质成分的识别、分离及定量分析和抗肿瘤治疗效果的评估等。</p><p>来源:门诊杂志ME</p><p style=""><img src="http://mmbiz.qpic.cn/mmbiz/rz7R73cuHRrv6jdOCoJeZmYwvEAIoHpY0a7yJL2egiaEokLTpwkIsIRTzTFUic09aEThKHS4hrEcSqU0lAS3tu5g/0" data-ratio="0.14784394250513347" data-w="487" width="auto" width="auto" src="http://mmbiz.qpic.cn/mmbiz/rz7R73cuHRrv6jdOCoJeZmYwvEAIoHpY0a7yJL2egiaEokLTpwkIsIRTzTFUic09aEThKHS4hrEcSqU0lAS3tu5g/0" style="word-wrap: break-word !important; 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margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; line-height: 24px; orphans: 2; widows: 2; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-family: 仿宋; font-size: 19px;">微信公众号:</span></p><p style="margin-top: 0px; margin-bottom: 0px; max-width: 100%; word-wrap: normal; min-height: 1em; white-space: pre-wrap; background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: 宋体; font-size: 14px; line-height: 24px; orphans: 2; widows: 2; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-family: 仿宋; font-size: 19px;"> </span><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; 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