American Journal of Neuroradiology 24:1436-1445, August 2003
© 2003 American Society of Neuroradiology
INTERVENTIONAL
Visualization of Intraaneurysmal Flow Patterns with Transluminal Flow Images of 3D MR Angiograms in Conjunction with Aneurysmal Configurations
a Department of Neurological Surgery, Ryofukai Satoh Neurosurgical Hospital, Hiroshima, Japan
b Department of Neurological Surgery, Onomichi Municipal Hospital, Hiroshima, Japan
Address reprint requests to Toru Satoh, MD, Department of Neurological Surgery, Ryofukai Satoh Neurosurgical Hospital, 5–23-23 Matsunaga, Fukuyama, Hiroshima, 729-0104, Japan
BACKGROUND AND PURPOSE: How the complex flow phenomena generated within unruptured cerebral aneurysms relate to the corresponding aneurysmal geometry is unknown. To estimate the interaction between flow patterns and morphologic features of unruptured cerebral aneurysms, we developed a method to visualize intraanuerysmal flow patterns with transluminal flow imaging of 3D MR angiograms in conjunction with aneurysmal configurations.
METHODS: Transluminal images of the vessel lumen were reconstructed with use of a parallel volume-rendering algorithm by selecting information on the margin of lumina from the volume data sets of 3D time-of-flight MR angiograms. Transluminal flow images were then created by superimposing flow-related intraluminal information onto transluminal images. Intraaneurysmal flow patterns were evaluated in three cases of unruptured cerebral aneurysms, based on the animated display of transluminal flow images with stepwise extracted intraluminal volume data of signal intensity, in conjunction with the corresponding aneurysmal configurations depicted on 3D MR angiograms.
RESULTS: Transluminal flow images showed 3D visualization of flow-related signal intensity distribution obtained from volume data of MR angiograms, so that qualitative information regarding intraaneurysmal flow patterns could be estimated with respect to morphologic features of cerebral aneurysms.
CONCLUSION: Transluminal flow images of 3D MR angiograms allowed feasible visualization of intraaneurysmal flow patterns that were studied. More work is required to validate the technique and clarify the significance of being able to visualize intraaneurysmal flow patterns.
This article has been cited by other articles:
 |
|
 |
|
  S. Tateshima, K. Tanishita, H. Omura, J.P. Villablanca, and F. Vinuela Intra-Aneurysmal Hemodynamics during the Growth of an Unruptured Aneurysm: In Vitro Study Using Longitudinal CT Angiogram Database AJNR Am. J. Neuroradiol., April 1, 2007; 28(4): 622 - 627. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M.A. Castro, C.M. Putman, and J.R. Cebral Computational fluid dynamics modeling of intracranial aneurysms: effects of parent artery segmentation on intra-aneurysmal hemodynamics. AJNR Am. J. Neuroradiol., September 1, 2006; 27(8): 1703 - 1709. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Satoh, M. Omi, C. Ohsako, K. Fujiwara, K. Tsuno, W. Sasahara, K. Onoda, K. Tokunaga, K. Sugiu, and I. Date Differential Diagnosis of the Infundibular Dilation and Aneurysm of Internal Carotid Artery: Assessment with Fusion Imaging of 3D MR Cisternography/Angiography. AJNR Am. J. Neuroradiol., February 1, 2006; 27(2): 306 - 312. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. R. Cebral, 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 AJNR Am. J. Neuroradiol., November 1, 2005; 26(10): 2550 - 2559. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Satoh, M. Omi, C. Ohsako, A. Katsumata, Y. Yoshimoto, S. Tsuchimoto, K. Onoda, K. Tokunaga, K. Sugiu, and I. Date Influence of Perianeurysmal Environment on the Deformation and Bleb Formation of the Unruptured Cerebral Aneurysm: Assessment with Fusion Imaging of 3D MR Cisternography and 3D MR Angiography AJNR Am. J. Neuroradiol., September 1, 2005; 26(8): 2010 - 2018. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Satoh, M. Omi, C. Ohsako, A. Katsumata, Y. Yoshimoto, S. Tsuchimoto, K. Onoda, K. Tokunaga, K. Sugiu, and I. Date Visualization of Aneurysmal Contours and Perianeurysmal Environment with Conventional and Transparent 3D MR Cisternography AJNR Am. J. Neuroradiol., February 1, 2005; 26(2): 313 - 318. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Satoh, K. Onoda, and S. Tsuchimoto Intraoperative Evaluation of Aneurysmal Architecture: Comparative Study with Transluminal Images of 3D MR and CT Angiograms AJNR Am. J. Neuroradiol., November 1, 2003; 24(10): 1975 - 1981. [Abstract] [Full Text] [PDF]
|
|