지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.2
- 수록면
- 46 - 53 (8page)
이용수
초록· 키워드
오류제보하기
Monte Carlo simulations were performed for a three-dimensional tissue model with and without an embedded large vessel, to understand how varying vessel geometry affects surface light distribution. Vessel radius was varied from 1 to 5 mm, and vessel depth from 2 to 10 mm. A larger difference in surface fluence rate was observed when the vessel’s radius increased. For vessel depth, the largest difference was seen at a depth of approximately 4 mm, corresponding to human wrist region. When the vessel was placed at depths greater than 8 mm, very little difference was observed. We also tested the feasibility of using two source-detector pairs, comprising two detectors distinctly spaced from a common source, to noninvasively measure blood-scattering changes in a large vessel. High sensitivity to blood-scattering changes was achieved by placing the near detector closer to the source and moving the far detector away from the source. However, at longer distances, increasing noise levels limited the sensitivity of the two-detector approach. Our results indicate that the approach using two source-detector pairs may have potential for quantitative measurement of scattering changes in the blood while targeting large vessels near the human wrist region.
목차
I. INTRODUCTION
II. METHODS
III. RESULTS
IV. DISCUSSION
V. CONCLUSION
REFERENCES
참고문헌 (32)
참고문헌 신청
L. Wang / 1995 / MCML--Monte Carlo modeling of light transport in multi-layered tissues / Comput. Methods Programs Biomed 47:131~146
M. Keijzer / 1989 / Light distributions in artery tissue : Monte Carlo simulations for finite-diameter laser beams / Lasers Surg. Med 9:148~154
Q. Fang / 2009 / Monte Carlo simulation of photon migration in 3D turbid media accelerated by graphics processing units / Opt. Express 17:20178~20190
D. Boas / 2002 / Three dimensional Monte Carlo code for photon migration through complex heterogeneous media including the adult human head / Opt. Express 10:159~170
W. Verkruysse / 1997 / Modelling light distributions of homogeneous versus discrete absorbers in light irradiated turbid media / Phys. Med. Biol 42:51~65
M. Keijzer / 1989 / Light distributions in artery tissue : Monte Carlo simulations for finite-diameter laser beams / Lasers Surg. Med 9:148~154
Q. Fang / 2009 / Monte Carlo simulation of photon migration in 3D turbid media accelerated by graphics processing units / Opt. Express 17:20178~20190
D. Boas / 2002 / Three dimensional Monte Carlo code for photon migration through complex heterogeneous media including the adult human head / Opt. Express 10:159~170
W. Verkruysse / 1997 / Modelling light distributions of homogeneous versus discrete absorbers in light irradiated turbid media / Phys. Med. Biol 42:51~65
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