Dose patient en neuroradiologie interventionnelle : bilan d’une enquête multicentrique

Journal De Radiologie Pub Date : 2011-12-01 DOI:10.1016/j.jradio.2011.08.005

N. Kien, J.-L. Rehel, C. Étard, B. Aubert

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引用次数: 22

Abstract

Purpose

The purpose of this multicenter study was to determine the doses received by patients during interventional neuroradiology procedures and to consider establishing reference standards.

Materials and methods

A retrospective study of nine interventional neuroradiology departments was conducted. Seven diagnostic (cerebral and spinal angiography) and therapeutic (embolization and vertebroplasty) procedures were reviewed. For each procedure, three dosimetric parameters were recorded: dose-area product (DAP), fluoroscopy time, and number of images.

Results

Results showed interdepartment variations, up to four-fold for diagnostic procedures and seven-fold for therapeutic procedures. However, applying the 75th percentile method to the entire dataset, reference standards can be proposed for six types of procedures including diagnostic cerebral angiography (230 Gy cm²), follow-up selective cerebral angiography (80 Gy cm²), aneurysm embolization (350 Gy cm²), AVM embolization (440 Gy cm²). Reference standards are also proposed with regards to fluoroscopy time and number of images.

Conclusion

Such standards are useful for clinicians to evaluate and improve their practices.

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介入神经放射学中的患者剂量:多中心调查的结果

目的本多中心研究的目的是确定患者在介入神经放射学手术中接受的剂量，并考虑建立参考标准。材料与方法对9个介入神经放射科进行回顾性研究。回顾了七种诊断(脑和脊髓血管造影)和治疗(栓塞和椎体成形术)的方法。对于每个程序，记录三个剂量学参数:剂量面积积(DAP)，透视时间和图像数量。结果显示科室间差异，诊断程序高达4倍，治疗程序高达7倍。然而，将第75个百分点方法应用于整个数据集，可以提出六种手术的参考标准，包括诊断性脑血管造影(230 Gy cm2)，随访选择性脑血管造影(80 Gy cm2)，动脉瘤栓塞(350 Gy cm2)， AVM栓塞(440 Gy cm2)。同时提出了关于透视时间和图像数量的参考标准。结论该标准对临床医生评价和改进临床实践有一定的参考价值。

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Journal De Radiologie 医学-核医学

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