Abstract
This study proposes magnetic resonance (MR)-measurement-integrated (MR-MI) simulation, in which the difference between the computed velocity field and the phase-contrast MRI measurement data is fed back to the numerical simulation. The computational accuracy and the fundamental characteristics, such as steady characteristics and transient characteristics, of the MR-MI simulation were investigated by a numerical experiment. We dealt with reproduction of three-dimensional steady and unsteady blood flow fields in a realistic cerebral aneurysm developed at a bifurcation. The MR-MI simulation reduced the error derived from the incorrect boundary conditions in the blood flow in the cerebral aneurysm. For the reproduction of steady and unsteady standard solutions, the error of velocity decreased to 13% and to 22% in one cardiac cycle, respectively, compared with the ordinary simulation without feedback. Moreover, the application of feedback shortened the computational convergence, and thus the convergent solution and periodic solution were obtained within less computational time in the MR-MI simulation than that in the ordinary simulation. The dividing flow ratio toward the two outlets after bifurcation was well estimated owing to the improvement of computational accuracy. Furthermore, the MR-MI simulation yielded wall shear stress distribution on the cerebral aneurysm of the standard solution accurately and in detail.
Similar content being viewed by others
References
Castro, M. A., C. M. Putman, and J. R. Cebral. Computational fluid dynamics modeling of intracranial aneurysms: Effects of parent artery segmentation on intra-aneurysmal hemodynamics. Am J Neuroradiol 27:1703-1709, 2006.
Castro, M. A., C. M. Putman, and J. R. Cebral. Patient-specific computational fluid dynamics modeling of anterior communicating artery aneurysms: A study of the sensitivity of intra-aneurysmal flow patterns to flow conditions in the carotid arteries. Am J Neuroradiol 27:2061-2068, 2006.
Cebral, J. R., M. A. Castro, J. E. Burgess, R. S. Pergolizzi, M. J. Sheridan, and C. M. Putman. Characterization of cerebral aneurysms for assessing risk of rupture by using patient-specific computational hemodynamics models. Am J Neuroradiol 26:2550-2559, 2005.
Ford, M. D., S. W. Lee, S. P. Lownie, D. W. Holdsworth, and D. A. Steinman. On the effect of parent-aneurysm angle on flow patterns in basilar tip aneurysms: Towards a surrogate geometric marker of intra-aneurismal hemodynamics. J Biomech 41:241-248, 2008. doi:10.1016/j.jbiomech.2007.09.032
Funamoto, K., T. Hayase, Y. Saijo, and T. Yambe. Transient and steady characteristics of ultrasonic-measurement-integrated simulation in three-dimensional blood flow analysis. Ann Biomed Eng 37:34-49, 2009. doi:10.1007/s10439-008-9600-2
Glor, F. P., J. J. M. Westenberg, J. Vierendeels, M. Danilouchkine, and P. Verdonck. Validation of the coupling of magnetic resonance imaging velocity measurements with computational fluid dynamics in a u bend. Artif Organs 26:622-635, 2002. doi:10.1046/j.1525-1594.2002.07085.x
Hassan, T., E. V. Timofeev, T. Saito, H. Shimizu, M. Ezura, T. Tominaga, A. Takahashi, and K. Takayama. Computational replicas: Anatomic reconstructions of cerebral vessels as volume numerical grids at three-dimensional angiography. Am J Neuroradiol 25:1356-1365, 2004.
Hayase, T., and S. Hayashi. State estimator of flow as an integrated computational method with the feedback of online experimental measurement. J Fluid Eng-T Asme 119:814-822, 1997. doi:10.1115/1.2819503
Hayase, T., J. A. C. Humphrey, and R. Greif. A consistently formulated quick scheme for fast and stable convergence using finite-volume iterative calculation procedures. J Comput Phys 98:108-118, 1992. doi:10.1016/0021-9991(92)90177-Z
Isoda, H., M. Hirano, H. Takeda, T. Kosugi, M. T. Alley, M. Markl, N. J. Pelc, and H. Sakahara. Visualization of hemodynamics in a silicon aneurysm model using time-resolved, 3D, phase-contrast MRI. Am J Neuroradiol 27:1119-1122, 2006.
Jamous, M. A., S. Nagahiro, K. T. Kitazato, K. Satoh, and J. Satomi. Vascular corrosion casts mirroring early morphological changes that lead to the formation of saccular cerebral aneurysm: An experimental study in rats. J Neurosurg 102:532-535, 2005.
Jou, L. D., G. Wong, B. Dispensa, M. T. Lawton, R. T. Higashida, W. L. Young, and D. Saloner. Correlation between lumenal geometry changes and hemodynamics in fusiform intracranial aneurysms. Am J Neuroradiol 26:2357-2363, 2005.
Malek, A. M., S. L. Alper, and S. Izumo. Hemodynamic shear stress and its role in atherosclerosis. Jama-J Am Med Assoc 282:2035-2042, 1999. doi:10.1001/jama.282.21.2035
Mantha, A., C. Karmonik, G. Benndorf, C. Strother, and R. Metcalfe. Hemodynamics in a cerebral artery before and after the formation of an aneurysm. Am J Neuroradiol 27:1113-1118, 2006.
Markl, M., F. P. Chan, M. T. Alley, K. L. Wedding, M. T. Draney, C. J. Elkins, D. W. Parker, R. Wicker, C. A. Taylor, R. J. Herfkens, and N. J. Pelc. Time-resolved three-dimensional phase-contrast MRI. J Magn Reson Imaging 17:499-506, 2003. doi:10.1002/jmri.10272
Marshall, I., S. Z. Zhao, P. Papathanasopoulou, P. Hoskins, and X. Y. Xu. MRI and CFD studies of pulsatile flow in healthy and stenosed carotid bifurcation models. J Biomech 37:679-687, 2004. doi:10.1016/j.jbiomech.2003.09.032
Meng, H., Z. J. Wang, Y. Hoi, L. Gao, E. Metaxa, D. D. Swartz, and J. Kolega. Complex hemodynamics at the apex of an arterial bifurcation induces vascular remodeling resembling cerebral aneurysm initiation. Stroke 38:1924-1931, 2007. doi:10.1161/STROKEAHA.106.481234
Moftakhar, R., B. Aagaard-Kienitz, K. Johnson, P. A. Turski, A. S. Turk, D. B. Niemann, D. Consigny, J. Grinde, O. Wieben, and C. A. Mistretta. Noninvasive measurement of intra-aneurysmal pressure and flow pattern using phase contrast with vastly undersampled isotropic projection imaging. Am J Neuroradiol 28:1710-1714, 2007. doi:10.3174/ajnr.A0648
Moyle, K. R., L. Antiga, and D. A. Steinman. Inlet conditions for image-based CFD models of the carotid bifurcation: Is it reasonable to assume fully developed flow? J Biomech Eng-T Asme 128:371-379, 2006. doi:10.1115/1.2187035
Myers, J. G., J. A. Moore, M. Ojha, K. W. Johnston, and C. R. Ethier. Factors influencing blood flow patterns in the human right coronary artery. Ann Biomed Eng 29:109-120, 2001. doi:10.1114/1.1349703
Papathanasopoulou, P., S. Z. Zhao, U. Kohler, M. B. Robertson, Q. Long, P. Hoskins, X. Y. Xu, and I. Marshall. MRI measurement of time-resolved wall shear stress vectors in a carotid bifurcation model, and comparison with CFD predictions. J Magn Reson Imaging 17:153-162, 2003. doi:10.1002/jmri.10243
Patankar, S. V. Numerical Heat Transfer and Fluid Flow. Washington DC/New York: Hemisphere Pub. Corp., 1980.
Radaelli, A. G., L. Augsburger, J. R. Cebral, M. Ohta, D. A. Rüfenacht, R. Balossino, G. Benndorf, D. R. Hose, A. Marzo, R. Metcalfe, P. Mortier, F. Mut, P. Reymond, L. Socci, B. Verhegghe, and A. F. Frangi. Reproducibility of haemodynamical simulations in a subject-specific stented aneurysm model—a report on the virtual intracranial stenting challenge 2007. J Biomech 41:2069-2081, 2008. doi:10.1016/j.jbiomech.2008.04.035
Shojima, M., M. Oshima, K. Takagi, R. Torii, M. Hayakawa, K. Katada, A. Morita, and T. Kirino. Magnitude and role of wall shear stress on cerebral aneurysm - computational fluid dynamic study of 20 middle cerebral artery aneurysms. Stroke 35:2500-2505, 2004. doi:10.1161/01.STR.0000144648.89172.0f
Steinman, D. A., and C. A. Taylor. Flow imaging and computing: Large artery hemodynamics. Ann Biomed Eng 33:1704-1709, 2005. doi:10.1007/s10439-005-8772-2
Steinman, D. A., J. S. Milner, C. J. Norley, S. P. Lownie, and D. W. Holdsworth. Image-based computational simulation of flow dynamics in a giant intracranial aneurysm. Am J Neuroradiol 24:559-566, 2003.
Tateshima, S., Y. Murayama, J. P. Villablanca, T. Morino, K. Nomura, K. Tanishita, and F. Vinuela. In vitro measurement of fluid-induced wall shear stress in unruptured cerebral aneurysms harboring blebs. Stroke 34:187-192, 2003. doi:10.1161/01.STR.0000046456.26587.8B
Ujiie, H., Y. Tamano, K. Sasaki, and T. Hori. Is the aspect ratio a reliable index for predicting the rupture of a saccular aneurysm? Neurosurgery 48:495-502, 2001. doi:10.1097/00006123-200103000-00007
Venugopal, P., D. Valentino, H. Schmitt, J. P. Villablanca, F. Vinuela, and G. Duckwiler. Sensitivity of patient-specific numerical simulation of cerebral aneurysm hemodynamics to inflow boundary conditions. J Neurosurg 106:1051-1060, 2007. doi:10.3171/jns.2007.106.6.1051
Zhao, S. Z., P. Papathanasopoulou, Q. Long, I. Marshall, and X. Y. Xu. Comparative study of magnetic resonance imaging and image-based computational fluid dynamics for quantification of pulsatile flow in a carotid bifurcation phantom. Ann Biomed Eng 31:962-971, 2003. doi:10.1114/1.1590664
Acknowledgments
The authors would like to express their thanks to Mr. Yasuhide Ohkura for his cooperation in obtaining the output of the information on blood flow from the PC MRI using Flova. All computations were performed using the supercomputer system at the Advanced Fluid Information Research Center, Institute of Fluid Science, Tohoku University. The authors are grateful to the staff of the AFI Research Center for their support in the computational work.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Funamoto, K., Suzuki, Y., Hayase, T. et al. Numerical Validation of MR-Measurement-Integrated Simulation of Blood Flow in a Cerebral Aneurysm. Ann Biomed Eng 37, 1105–1116 (2009). https://doi.org/10.1007/s10439-009-9689-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10439-009-9689-y