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针对肘部疾病的四维计算机断层扫描:一篇文献综述和对现有技术的改进,以两个示例案例为例

Walter-Soon-Yaw Wong¹, Craigven Sim¹, Zhi Quan Tay²

¹Department of Orthopaedic Surgery, Sengkang General Hospital, Singapore, Singapore.

JSES international

|March 11, 2024

概括

减少辐射的向肘部4D-CT (te4D-CT) 为动态肘部成像提供较低的辐射剂量. 这些扫描提供了与传统的4D-CT相美的诊断准确性,有助于更好的手术规划.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
整形外科整形外科整形外科

背景情况:

四维计算机断层扫描 (4D-CTs) 在诊断肘部疾病方面具有优势,包括减少误诊和改善手术规划.
然而,4D-CTs涉及的辐射剂量高于静态CT扫描,需要谨慎使用.
本研究对动态肘部疾病的4D-CTs进行了文献审查,并介绍了减辐射的向肘部4D-CTs (te4D-CT).

研究的目的:

审查关于动态肘部疾病中的4D-CTs的当前文献.
描述一种用于辐射减小的准肘4D-CTs (te4D-CT) 的技术方法.
介绍te4D-CT适应症的示例病例和建议.

主要方法:

te4D-CTs是在横向下垂,肘上方头部位置进行的.
扫描包括用于重建的初步静态成像,其次是运动特异性扫描 (屈曲/延伸或伸展/伸缩).
该技术是根据怀疑的临床病理学而进行调整的.

主要成果:

te4D-CT对位/位 (PS) 和曲/延伸 (FE) 的协议的有效辐射剂量分别为0.53 mSv和0.95 mSv.
这些剂量明显低于常规肘部4D-CTs (1.131.83 mSv).
te4D-CTs在仔细识别特定病理时表现出良好的诊断准确性.

结论:

使用隔离PS或FE协议的减辐射te4D-CT显著降低了辐射暴露.
这些有针对性的扫描提供了与传统4D-CT相比的临床产量.
te4D-CT代表了一个有价值的,低剂量成像选项,用于特定的动态肘部病理.

关键词:

生物力学生物力学肘部和肩部,以及肩部.关节关节关节关节肌肉骨组织的组织.整形外科整形外科整形外科骨关节炎是一种骨关节炎.

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