(A) method for ghost particle sampling and determination of the property for simulation of contrast medium behavior = 혈관 조영제 거동 시뮬레이션을 위한 가상입자 생성 및 물성치 결정방법

Coronary angiography is the diagnostic procedure that visualize the coronary arteries to confirm if angina occurs by injecting the contrast medium. The training simulation for coronary angiography is being developed. The behavior of blood and contrast medium is modeled as smoothed particle hydrodynamics (SPH). This paper proposes the method for ghost particle sampling and determination of the property that reflecting characteristic of blood flow. Filling the vascular with blood particles requires the excessive number of particles and slows down the simulation. The blood particles are removed to reduce computation time and ghost particles are dynamically seeded in the only ambient of contrast medium particles. The absence of the blood flow results in unrealistic behavior because its influences such as pressure and viscosity on the contrast medium are neglected. The contrast medium particle interacts with ambient ghost particle to compensate for absence of blood particle. The physical property of ghost particle is determined based on blood flow analysis using commercial S/W fluent which was implemented before the simulation started. An accuracy test was implemented for 2D contrast medium simulation. The results show that the maximum velocity error is 33.86%.
Advisors
Lee, Doo Yongresearcher이두용researcher
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 2016.8 ,[iv, 45 p. :]

Keywords

Smoothed Particle Hydrodynamics; Ghost Particle; Sampling Method; Contrast Medium; Medical Simulation; 입자기반유체시뮬레이션; 가상입자; 생성 방법; 조영제; 의료시뮬레이션

URI
http://hdl.handle.net/10203/221273
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=663288&flag=t
Appears in Collection
ME-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.
  • Hit : 112
  • Download : 0
  • Cited 0 times in thomson ci

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0