| 李超 贾玉琳 孙源源 袁彪 肖喜刚△.能谱CT在去除腰椎术后金属伪影中的应用进展[J].,2016,16(6):1164-1166 |
| 能谱CT在去除腰椎术后金属伪影中的应用进展 |
| Application of Spectral CT in Reducing the Lumbar Vertebrae MetalArtifacts |
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| DOI： |
| 中文关键词: 能谱成像 去伪影技术 腰椎手术 金属伪影 |
| 英文关键词: Energy spectral CT MARs Vertebrae surgery Metal artifacts |
| 基金项目:黑龙江省自然科学基金项目（H201343） |
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| 中文摘要: |
| 多层计算机断层扫描（Multi-slice computed tomography，MSCT）具有时间及空间分辨率高的特点已经被广泛应用于脊柱术
后评价，然而，因为术中植入金属植入物，CT 图像由于其成像原理的限制，其图像质量受到金属植入物的严重影响，金属伪影大
多来源于量子噪声、散射线和射束硬化效应，降低图像的对比度，使细微解剖结构显示不清，从而使得感兴趣区域的检测能力降
低，其图像质量明显下降，甚至使临床医师做出错误的诊断，因此，为了做出更准确的腰椎术后并发症诊断和术后评估，使金属伪
影最小化成为关键。能谱CT及其扫描及重建技术可以有效的去除腰椎术后产生的金属伪影，改善图像质量，本文能谱CT 在腰
椎术后金属伪影去除方面的应用进行综述。 |
| 英文摘要: |
| Multi-slice computed tomography (MSCT) with isotropic spatial resolution and short scan times has been widely used
in the postoperative evaluation of lumbar vertebrae surgery, however, the quality of CT images can still be seriously deteriorated by the
presence of metal implant. Metal artifacts, mostly frombeam hardening and quantumnoise , influence image quality by reducing contrast
and by obscuring details, thus impairing the detectability of structures of interest; in the worst case, this can make a diagnosis impossible.
It is, therefore, of great importance to reduce these deteriorating artifacts to a minimum for better diagnosis. Many studies have shown
that the metallic artifacts were prominent but dramatically reduced by spectral CT, This paper focuses on the application of the usefulness
of spectral CT images after lumbar vertebrae surgery. |
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