Morishima Yoshiaki, Chida Koichi, Chiba Hiroo, Kumagai Koji
Department of Radiological Technology, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Fukumuro, Miyagino-Ku, Sendai, 983-8512, Japan.
Department of Radiological Technology, Tohoku University School of Health Sciences, Sendai, 980-8575, Japan.
Ir J Med Sci. 2024 Dec;193(6):2745-2751. doi: 10.1007/s11845-024-03802-6. Epub 2024 Oct 5.
Radio frequency catheter ablation (RFCA), a treatment for arrhythmia, requires a long fluoroscopy time that increases the radiation exposure dose to the physician, particularly to the lens of the eye. It is recommended that a lens-specific dosimeter such as DOSIRIS® is used to measure the dose to the lens.
In this study, we investigated whether conventional glass badges can be used as an alternative to lens dosimeters.
The doses to the lenses of two physicians (physician A, main operator; physician B, assistant; physician B was further away from the patient than physician A) were measured for 126 RFCA procedures performed over a 6-month period (fluoroscopy rate of 3.0 p/s with use of a ceiling-hanging shield).
The cumulative value measured by a lens dosimeter attached to the inside of Pb glasses (0.07-mm dose equivalent) next to the left eye was 4.7 mSv for physician A, and 0.8 mSv for physician B. The reading on the glass badge worn on the left side of the neck was 4.7 mSv for physician A and 1.3 mSv for physician B. Lens dosimeter and glass badge values showed a good correlation for the left eye and left neck (r = 0.86, p < 0.01).
We show that glass badges may be a viable alternative to lens-equivalent dosimetry when using low-pulse fluoroscopy and a ceiling-hanging shield.
射频导管消融术（RFCA）是一种治疗心律失常的方法，需要较长的透视时间，这会增加医生所受的辐射剂量，尤其是眼部晶状体所受的辐射剂量。建议使用如DOSIRIS®这类针对晶状体的剂量仪来测量晶状体所受剂量。
在本研究中，我们调查了传统玻璃徽章是否可作为晶状体剂量仪的替代品。
在6个月的时间里，对两位医生（医生A，主操作者；医生B，助手；医生B比医生A离患者更远）进行的126例RFCA手术中，测量他们眼部晶状体所受的剂量（使用天花板悬挂式防护屏时透视率为3.0次/秒）。
贴在左眼旁铅玻璃（等效剂量0.07毫米）内侧的晶状体剂量仪测得的累积值，医生A为4.7毫希沃特，医生B为0.8毫希沃特。佩戴在颈部左侧的玻璃徽章读数，医生A为4.7毫希沃特，医生B为1.3毫希沃特。晶状体剂量仪和玻璃徽章在左眼和左颈部的值显示出良好的相关性（r = 0.86，p < 0.01）。
我们表明，在使用低脉冲透视和天花板悬挂式防护屏时，玻璃徽章可能是等效于晶状体剂量测定的一种可行替代方法。
