Four-Dimensional Magnetic Resonance Imaging Assessment of Intracranial Aneurysms: A State-of-the-Art Review.

Neurosurgery
Mendel Castle-KirszbaumHamed Asadi

Abstract

Treatment of unruptured intracranial aneurysms can reduce the risk of subarachnoid hemorrhage and its associated morbidity and mortality. However, current methods to predict the risk of rupture and optimize treatment strategies for intracranial aneurysms are limited. Assessment of intra-aneurysmal flow using 4-dimensional magnetic resonance imaging (4D MRI) is a novel tool that could be used to guide therapy. A systematic search of the literature was performed to provide a state-of-the-art review on 4D MRI assessment of unruptured intracranial aneurysms. A total of 18 studies were available for review. Eccentric flow on 4D MRI is associated with a greater aspect ratio and peak wall shear stress (WSS). WSS, vorticity, and peak velocity are greater in saccular than fusiform aneurysms. Unstable aneurysms are associated with greater WSS, peak wall stress, and flow jet angle and may exhibit wall enhancement. In comparison to computational fluid dynamics (CFD), 4D MRI has a lower spatial resolution and reports lower WSS and velocity magnitudes, but these parameters equalize when spatial resolution is matched. 4D MRI demonstrates the intra-aneurysmal hemodynamic changes associated with flow diversion, including significantly decreased...Continue Reading

References

Apr 1, 1996·Stroke; a Journal of Cerebral Circulation·F H LinnJ van Gijn
Nov 1, 1996·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·L WigströmB Wranne
Dec 11, 1999·JAMA : the Journal of the American Medical Association·A M MalekS Izumo
Jul 18, 2003·Lancet·David O WiebersUNKNOWN International Study of Unruptured Intracranial Aneurysms Investigators
May 24, 2007·Journal of Magnetic Resonance Imaging : JMRI·Sinyeob AhnShantanu Sinha
Feb 19, 2008·RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin·C KarmonikG Benndorf
Oct 29, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A F StalderM Markl
Jan 24, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Loic BousselDavid Saloner
Jul 7, 2009·Magnetic Resonance Imaging·Thomas A HopeWilliam P Dillon
Sep 29, 2009·Annual Review of Fluid Mechanics·Daniel M SforzaJuan Raul Cebral
Apr 12, 2011·Annals of Biomedical Engineering·Zhong-Dong Shi, John M Tarbell
Mar 7, 2012·Acta neurochirurgica·Takehiro NaitoToshihiko Wakabayashi
Jul 5, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Nicholas R Zwart, James G Pipe
Oct 24, 2012·Journal of Magnetic Resonance Imaging : JMRI·Michael MarklOliver Wieben
Feb 19, 2013·Journal of Magnetic Resonance Imaging : JMRI·Pim van OoijAart J Nederveen
Sep 5, 2013·Stroke; a Journal of Cerebral Circulation·Erdem GüresirVolker Seifert
Oct 24, 2013·Journal of Magnetic Resonance Imaging : JMRI·Susanne SchnellMichael Markl
Apr 2, 2014·Acta Neuropathologica Communications·Tomohiro AokiShuh Narumiya
Oct 5, 2014·Journal of Neurointerventional Surgery·Vitor Mendes PereiraMaria-Isabel Vargas
Jan 6, 2015·Molecular Cell·Young-Min SohStephan Gruber
May 27, 2015·NMR in Biomedicine·Matthew Ethan MacDonald, Richard Frayne
Aug 11, 2015·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Petter DyverfeldtMichael Markl
Feb 20, 2016·AJNR. American Journal of Neuroradiology·R BlankenaJ J M Zwanenburg
Apr 20, 2018·International Journal of Molecular Sciences·Elzbieta PawlowskaJanusz Blasiak

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