유방엑스선검사에서의 변형된 ACR 팬텀 제작을 통한 모조병소의 위치와 두께 변화에 따른 영상의 품질 평가

• 영문명: Evaluation of Image Quality according to Insert Position and Thickness Change by Fabricating Modified ACR Phantom in Mammography
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 엄현자(Hyon-Ja Uhm) 박찬록(Chanrok Park)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제45권 제2호, 103~109쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2022.04.30

영문 초록

To maintain improved image quality in mammography, the quality control process is performed using the ACR (American college of radiology) phantom. In addition, many studied were performed by fabricating the customized breast phantom to provide more information in mammography. Thus, the purpose of this study was to evaluate the image quality by designing the modified ACR phantoms. The five modified acrlylic ACR phantoms were designed by considering insert position and phantom thickness. The phantoms were consisted of 4.5, 3.0, and 1.5 cm in terms of phantom thickness, and 3.0, 2.0, and 0.5 cm in terms of insert position, respectively. The acquired images were evaluated by PSNR (peak signal to noise ratio), RMSE (root mean square error), CC (correlation coefficient), CNR (contrast to noise ratio), and COV (coefficient of variation). Based on the similarity analysis, the result is suitable between conventional and new designed phantoms. In addition, the CNR and COV results in terms of insert position showed that image quality for 0.5 cm was 2.3 and 27.4% improved compared with 2 and 3 cm, respectively. According to phantom thickness results, the CNR result for 1.5 cm and COV result for 4.5 cm were 50.1 and 62.7% improved compared with that those conditions. In conclusion, we confirmed that the image quality depends on the breast size and thickness through modified ACR phantom study.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

REFERENCES

키워드

ACR 팬텀 유방암 유방엑스선검사 정도관리 정량적분석 ACR (american college of radiology) phantom Breast cancer Mammography Quality control Quantitative analysis