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Hemodynamics and rupture of terminal cerebral aneurysms.
Castro M, Putman C, Radaelli A, Frangi A, Cebral J. Castro M, et al. Among authors: frangi a. Acad Radiol. 2009 Oct;16(10):1201-7. doi: 10.1016/j.acra.2009.03.022. Epub 2009 Jun 23. Acad Radiol. 2009. PMID: 19553143
MATERIALS AND METHODS: A total of 42 patient-specific vascular models were constructed from three-dimensional rotational angiography images. ...CONCLUSIONS: This finding is in agreement with a previous work in which only anterior communicating artery aneurysms were …
MATERIALS AND METHODS: A total of 42 patient-specific vascular models were constructed from three-dimensional rotational angiography …
Efficient pipeline for image-based patient-specific analysis of cerebral aneurysm hemodynamics: technique and sensitivity.
Cebral JR, Castro MA, Appanaboyina S, Putman CM, Millan D, Frangi AF. Cebral JR, et al. Among authors: frangi af. IEEE Trans Med Imaging. 2005 Apr;24(4):457-67. doi: 10.1109/tmi.2005.844159. IEEE Trans Med Imaging. 2005. PMID: 15822804
A sensitivity analysis of the hemodynamic characteristics with respect to variations of several variables over the expected physiologic range of conditions is also presented. ...
A sensitivity analysis of the hemodynamic characteristics with respect to variations of several variables over the expected physiolog
Fast virtual stenting with deformable meshes: application to intracranial aneurysms.
Larrabide I, Radaelli A, Frangi A. Larrabide I, et al. Among authors: frangi a. Med Image Comput Comput Assist Interv. 2008;11(Pt 2):790-7. doi: 10.1007/978-3-540-85990-1_95. Med Image Comput Comput Assist Interv. 2008. PMID: 18982677
A methodology that predicts the released stent configuration prior to intervention has the potential to support the physician in the selection of the optimal approach for a specific patient. This paper proposes a fast virtual stenting technique based on const
A methodology that predicts the released stent configuration prior to intervention has the potential to support the physician in the
CFD analysis incorporating the influence of wall motion: application to intracranial aneurysms.
Dempere-Marco L, Oubel E, Castro M, Putman C, Frangi A, Cebral J. Dempere-Marco L, et al. Among authors: frangi a. Med Image Comput Comput Assist Interv. 2006;9(Pt 2):438-45. doi: 10.1007/11866763_54. Med Image Comput Comput Assist Interv. 2006. PMID: 17354802
Haemodynamics, and in particular wall shear stress, is thought to play a critical role in the progression and rupture of intracranial aneurysms. A novel method is presented that combines image-based wall motion estimation obtained through non-rigid registration with …
Haemodynamics, and in particular wall shear stress, is thought to play a critical role in the progression and rupture of intracranial …
Estimating continuous 4D wall motion of cerebral aneurysms from 3D rotational angiography.
Zhang C, De Craene M, Villa-Uriol MC, Pozo JM, Bijnens BH, Frangi AF. Zhang C, et al. Among authors: frangi af. Med Image Comput Comput Assist Interv. 2009;12(Pt 1):140-7. doi: 10.1007/978-3-642-04268-3_18. Med Image Comput Comput Assist Interv. 2009. PMID: 20425981
This paper presents a technique to recover dynamic 3D vascular morphology from a single 3D rotational X-ray angiography acquisition. The dynamic morphology corresponding to a canonical cardiac cycle is represented via a 4D B-spline based spatiotemporal …
This paper presents a technique to recover dynamic 3D vascular morphology from a single 3D rotational X-ray angiography acquis …
Towards regional elastography of intracranial aneurysms.
Balocco S, Camara O, Frangi AF. Balocco S, et al. Among authors: frangi af. Med Image Comput Comput Assist Interv. 2008;11(Pt 2):131-8. doi: 10.1007/978-3-540-85990-1_16. Med Image Comput Comput Assist Interv. 2008. PMID: 18982598
In order to reduce the number of variables to estimate, the aneurysm morphology is clustered into a limited number of regions with uniform stiffness. A random noise perturbation (<5mm) is applied to the reference deformations and strains, showing that the robustn …
In order to reduce the number of variables to estimate, the aneurysm morphology is clustered into a limited number of regions with un …
Modeling of the acute effects of primary hypertension and hypotension on the hemodynamics of intracranial aneurysms.
Sarrami-Foroushani A, Villa-Uriol MC, Nasr Esfahany M, Coley SC, Di Marco LY, Frangi AF, Marzo A. Sarrami-Foroushani A, et al. Among authors: frangi af. Ann Biomed Eng. 2015 Jan;43(1):207-21. doi: 10.1007/s10439-014-1076-7. Epub 2014 Aug 13. Ann Biomed Eng. 2015. PMID: 25118666
Hemodynamics is a risk factor in intracranial aneurysms (IA). Hypertension and pharmacologically induced hypotension are common in IA patients. ...The effects of hypotension and hypertension were simulated through boundary conditions by modulating the normotensive flow and …
Hemodynamics is a risk factor in intracranial aneurysms (IA). Hypertension and pharmacologically induced hypotension are common in IA …
Robustness of common hemodynamic indicators with respect to numerical resolution in 38 middle cerebral artery aneurysms.
Evju Ø, Pozo JM, Frangi AF, Mardal KA. Evju Ø, et al. Among authors: frangi af. PLoS One. 2017 Jun 13;12(6):e0177566. doi: 10.1371/journal.pone.0177566. eCollection 2017. PLoS One. 2017. PMID: 28609457 Free PMC article.
RESULTS: Most of the hemodynamic indicators were very well resolved at the coarser resolutions, correlating with the finest resolution with a correlation coefficient>0.95. ...A logarithmic Bland-Altman plot revealed noticeable variations in the proportion of the …
RESULTS: Most of the hemodynamic indicators were very well resolved at the coarser resolutions, correlating with the finest resolution with …
Uncertainty quantification of wall shear stress in intracranial aneurysms using a data-driven statistical model of systemic blood flow variability.
Sarrami-Foroushani A, Lassila T, Gooya A, Geers AJ, Frangi AF. Sarrami-Foroushani A, et al. Among authors: frangi af. J Biomech. 2016 Dec 8;49(16):3815-3823. doi: 10.1016/j.jbiomech.2016.10.005. Epub 2016 Oct 15. J Biomech. 2016. PMID: 28573970
Adverse wall shear stress (WSS) patterns are known to play a key role in the localisation, formation, and progression of intracranial aneurysms (IAs). ...We develop a data-driven statistical model of internal carotid artery (ICA) flow, which is used to generate a
Adverse wall shear stress (WSS) patterns are known to play a key role in the localisation, formation, and progression of intracranial …
Numerical simulation of blood flow in the left ventricle and aortic sinus using magnetic resonance imaging and computational fluid dynamics.
Moosavi MH, Fatouraee N, Katoozian H, Pashaei A, Camara O, Frangi AF. Moosavi MH, et al. Among authors: frangi af. Comput Methods Biomech Biomed Engin. 2014 May;17(7):740-9. doi: 10.1080/10255842.2012.715638. Epub 2012 Sep 13. Comput Methods Biomech Biomed Engin. 2014. PMID: 22974145
In this study, numerical simulations of blood flow in a patient-specific anatomical model of the left ventricle (LV) and the aortic sinus are presented. ...Furthermore, motion of inner walls of LV and aortic sinus is obtained from cine-MR image analysis and is used as a
In this study, numerical simulations of blood flow in a patient-specific anatomical model of the left ventricle (LV) and the aortic s …
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