Investigative Radiology:如何利用先进的影像技术提高床旁胸部x线片的图像质量?

2022-09-09 shaosai MedSci原创

为了提高没有物理网格(无网格)的放射线照片的图像质量(IQ),Fujifilm公司(日本东京)开发了软件(SW),商业上称为虚拟网格。

众所周知重症监护室(ICU)每天都要进行床边胸部X射线检查以实现对呼吸系统或心血管疾病患者的病程进行评估现阶段在床边检查中使用物理网格不常,因为当X射线焦点没有正确地对准物理网格时,射线照片中会出现错位伪影。

为了提高没有物理网格(无网格)的放射线照片的图像质量(IQ),Fujifilm公司(日本东京)开发了软件(SW),商业上称为虚拟网格。最近的一篇文章讨论了虚拟网格软件在对比度细节模型-CDRAD 2.0上的应用,显示了改善图像方面价值。然而,这项研究只评估了应用于技术模型x线照片的虚拟网格的性能。因此,有必要对使用和不使用虚拟网格处理的临床病人胸部X光片进行评估。

近日,发表在Investigative Radiology杂志的一项研究评估了虚拟网格在临床ICU胸片上的表现,为提高图像质量、提高医生的诊断信心提供可技术支持。


图 A-E,分别是气管、肋骨、肺、脊柱和心脏后面的肺的一部分选定区域。从左到右,感兴趣的区域分别用虚拟网格SW比0(SC SW关闭)、6:1(R6)、10:1(R10)、13:1(R13)、17:1(R17)和20:1(R20)处理

本研究表明,当虚拟网格与SW网格比为6:1时可显著提高无网格胸部床旁x线片的图像质量。同时发现,应慎重考虑使用17:1和20:1的网格比,因为SW对部分肋骨和脊柱会产生不利影响,建议将网格比率提高到13:1以解决相关问题。

 

原文出处:

Tim Gossye,Dimitri Buytaert,Peter V Smeets,et al.Evaluation of Virtual Grid Processed Clinical Chest Radiographs.DOI:10.1097/RLI.0000000000000876

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    2022-09-10 piaojinhua
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    2022-09-10 jiyangfei
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    2022-09-10 yibei

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