디지털 맘모 디텍터 성능평가를 위한 몬테카를로용 산란선 제거 그리드 작성에 관한 연구

• 영문명: Monte Carlo Simulation-Based Mammographic Anti-Scatter Grids to Evaluate Performance of Digital Mammography Detector
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 김예지(Yeji Kim) 조혜진(Hyejin Jo) 윤용수(Yongsu Yoon)
• 간행물 정보: 『방사선기술과학』제47권 제1호, 1~6쪽, 전체 6쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2024.02.29

영문 초록

In Recent years, there has been a noticeable increase in the global incidence of breast cancer, with approximately 2.3 million cases of female breast cancer reported worldwide in 2020. Numerous studies are currently underway to enhance the accuracy of breast cancer diagnosis through the development of digital mammography detectors. This study aims to create Monte Carlo simulation-based mammographic anti-scatter grids and investigate their utility in evaluating the performance of digital mammography detector. Two types of mammographic anti-scatter grids, MAM-CP and Senographe 600T HF, were created using Monte Carlo simulation software (MCNPX 2.7.0), with grid ratios of 3.7 : 1 and 5 : 1, respectively. The grid physical characteristics (sensitivity, exposure factor, contrast improvement ratio) were calculated based on the KS C IEC60627 in the simulations using two X-ray qualities, RQA-M2 (28 kVp) and MW4 (35 kVp). As the X-ray tube voltage increased from 28 kVp to 35 kVp, sensitivity and exposure factor exhibited a decreasing trend, while contrast improvement ratio demonstrated an increasing trend. With an increase in grid ratio from 3.7 : 1 to 5 : 1, all physical characteristics showed an upward trend. Our results were consistent with a previous study that conducted measurements of physical properties using a real phantom. However, the pattern of change in the contrast improvement ratio with X-ray tube voltage differed from the previous study.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

REFERENCES

키워드

산란선 그리드 유방촬영 몬테칼로 시뮬레이션 검출기 Scatter Radiation Anti-Scatter Grid Mammography Monte Carlo simulation Detector