유방촬영 시 피폭선량을 줄이기 위한 압박대 재질의 PC, PMMA, Carbon에 대한 연구
A Study on Compression Paddle Materials to Reduce Radiation Exposure Dose During Mammography; PC and PMMA and Carbon
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초록
유방의 피폭선량을 줄이기 위해 압박대의 재질을 연구하였으며, 재질로는 PC, PMMA, Carbon을 이용한 방사선투과성 및 선질 등을 측정하였고, 영상을 통한 화질도 분석하여 다음과 같은 결론을 얻었다. Unfors Xi dosimetry 사용 시 방사선 투과율은 압박대를 제거 후 측정한 결과 8.353 m㏉가 나왔으며, PC 6.308 m㏉, PMMA 6.223 m㏉, Carbon 7.218 m㏉가 측정되었다. 반가층은 PC 0.375㎜Al, PMMA 0.370㎜Al, Carbon 0.360 ㎜Al으로 Carbon, PC, PMMA 순으로 높은 선질과 투과도를 보였다. InLight/OSL NanoDotTM dosimeters 사용 시 압박대를 제거 후 선량계를 위치시켜 측정한 결과 중심부위에서 1.143 m㏉, 가장자리에서 12.56 m㏉, PC 중심부위에서 8.990 m㏉, 가장자리에서 10.291 m㏉, PMMA 중심부위에서 8.391 m㏉, 가장자리에서 9.654 m㏉, Carbon 중심부위에서 9.581 m㏉, 가장자리에서 11.313 m㏉가 측정되어 Carbon, PC, PMMA 순으로 높은 투과도를 보였다. Image J에서 Pixel 평균값은 압박대를 제거한 후 976.655, PC 831.032, PMMA 819.069, Carbon 897.118로Carbon, PC, PMMA순으로 높게 측정되었다.
Abstract
This study was designed the band material in order to reduce the exposure pressure of the breast and the material was measured of Radiolucent and radiation properties with a radiation materials of PC, PMMA, Carbon. Also the image quality by image analysis to obtain the following results are below:Unfors Xi dosimetry using radiation transmittance when the results of 8.353m㏉ is measured after re-moval of the cuff, the PC 6.308m㏉, PMMA 6.223m㏉, Carbon 7.218m㏉ were measured respectively. Semi-layer PC 0.375㎜Al, PMMA 0.370㎜Al, with Carbon 0.360㎜Al Carbon, PC, PMMA was higher radiation properties and transparency in order.InLight / OSL NanoDotTM dosimeter was used in the cuff and then removed by placing the dosimeter measured results center on 1.143m㏉, at the edge 12.56m㏉, on the central PC 8.990m㏉, at the edge 10.291m㏉, PMMA center on 8.391m㏉ , the edge 9.654m㏉, on Carbon center 9.581m㏉, 11.313 m㏉ were measured at the edge of Carbon, PC, PMMA showed a high permeability in order.Image Pixel average J is then removed from the cuff 976.655, PC 831.032, PMMA 819.069, Carbon 897.118 Carbon, PC, PMMA was measured by high order.
참고문헌 (15)
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