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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...

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在Crural Angiography中观察者间和观察者内部的变化.

Chrissy van Wely1,2, Rens J Oosterveld1,2, Niek Zonnebeld1

  • 1Department of Vascular Surgery, Zuyderland Medical Centre, Heerlen, The Netherlands.

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概括

数字减去血管造影 (DSA) 显示了对血管直径和治疗决策的适度同意,但对气球大小的同意较差. 需要客观的成像来准确地指导膝下皮肤穿透透光膜血管塑造.

关键词:
动脉样硬化 动脉样硬化气球血管整形术 气球血管整形术在膝盖以下.慢性四肢缺血症 慢性四肢缺血症关键四肢缺血症 关键四肢缺血症数字减去血管学图.在下形动脉中.下肢的下肢是什么意思通过皮肤进行的透光血管整形术.周围动脉疾病是什么?

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科学领域:

  • 血管外科 血管外科
  • 医疗成像医学成像
  • 干预心脏病学 干预心脏病学

背景情况:

  • 数字减去血管造影 (DSA) 是评估关动脉疾病和指导膝下皮肤透光血管造形 (PTA) 的黄金标准.
  • DSA依赖于操作者的估计,以进行血管直径和狭窄度等关键测量,从而导致潜在的变化.
  • 在DSA解释中观察者间和观察者内部的变异性可能会影响治疗决策和结果.

研究的目的:

  • 用数字减去血管学 (DSA) 来量化观测者间和观测者内部的可变性,以评估硬膜血管学.
  • 评估血管直径,狭窄程度和血管专家之间的治疗决策的测量一致性.
  • 确定与膝下PTA相关的DSA解释中的特定分歧领域.

主要方法:

  • 十五个形血管图由七名血管专家 (住院医生和外科医生) 在三个不同的场合独立审查.
  • 评估人员估计了血管直径,狭窄程度,确定了治疗决策,并选择了气球/支架尺寸.
  • 观察者间和观察者内部的协议是使用类内相关系数 (ICC) 和Hubert的 kappa计算的.

主要成果:

  • 对于估计的血管直径 (.62) 和狭窄度 (.72) 发现了适度的观察者间一致,但对于气球直径 (.21) 则达成了较差的一致.
  • 观察者内部的一致性在血管直径 (.62-.80) 和狭窄度 (.76-.87) 方面从中等到良好.
  • 对治疗决策的共识显示了观察者内部的适度至优异的变异性 (.76-.87) 和适度的观察者间的变异性 (.53),气球直径的差到适度的共识 (.07-.57).

结论:

  • 在DSA对关动脉疾病的评估中存在显著的观察者间和观察者内变异性,特别是在气球大小方面.
  • 虽然观察者内部对血管直径和狭窄的共识是中度到良好的,但观察者之间的共识只有中度.
  • 这些发现凸显了需要更客观的成像模式,以提高指导膝下PTA的准确性和一致性.