对干预性心脏病学医生的透镜辐射剂量的评估,在剂量限制法规改变之前和之后
Kodai Sagehashi1, Yoshihiro Haga1,2, Saki Takahira1
1Department of Radiological Examination and Technology, Tohoku University Graduate School of Medicine, 2-1, Seiryo-Machi, Aoba-Ku, Sendai, Miyagi 980-8575, Japan.
日本 日本 日本 日本 日本.
科学领域:
- 医学物理 医学物理
- 辐射保护 辐射保护
- 职业健康 职业健康 职业健康
背景情况:
- 日本于2021年4月修订了眼镜的职业辐射剂量限制,与国际建议保持一致.
- 新的限制要求对暴露在辐射中的工人进行更严格的年度和累积剂量监测.
- 干预心脏病医生在手术过程中面临着相当大的职业辐射暴露.
研究的目的:
- 评估干预性心脏病医生在实施日本修订剂量限制之前和之后经历的透镜辐射剂量.
- 为这些医生评估子剂量计在估计镜片剂量 (Hp(3) 中的准确性.
- 确定降低剂量限制是否影响医生暴露水平和当前监测方法的有效性.
主要方法:
- 这是一项前性研究,涉及14名干预心脏病医生.
- 在0.07毫米深度 (Hp(0.07) 使用部剂量计和在3毫米深度 (Hp(3) 使用透镜剂量计测量个人剂量等效.
- 数据收集发生在2021年4月剂量限制降低前一年和1年后一年.
主要成果:
- 对于大多数医生来说,部 (Hp{0.07)) 和透镜 (Hp{3)) 剂量都增加了,与更多的手术数量相关.
- 14名医生中有2名在Hp3中超过了20mSv y-1,这表明超过新的100mSv/5年限制的潜在风险.
- 在部和镜片剂量计读数之间观察到强烈的相关性,特别是对于主要执行诊断程序的医生来说.
结论:
- 尽管部和镜片剂量计之间存在很强的相关性,但由于高职业暴露,直接测量镜片剂量 (Hp(3) 是至关重要的.
- 一些干预性心脏病医生可能接近或超过新的5年累积剂量限制,需要加强辐射保护策略.
- 这些发现强调了持续监测的重要性,以及干预心脏病学中辐射安全协议的潜在调整.
更多相关视频
06:20Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
13:48Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound
Published on: April 21, 2023
相关概念视频
Imaging Studies for Cardiovascular System III: X-Ray
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Biological Effects of Radiation
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Renal Failure: Dose Adjustments
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Radiological Investigation I: X-ray and CT
