Blood flow imaging: an angle-independent ultrasound modality for intraoperative assessment of flow dynamics in neurovascular surgery

Neurosurgery
Frank LindsethGeirmund Unsgaard

Abstract

The objective of this study was to investigate the clinical applicability of navigated blood flow imaging (BFI) in neurovascular applications. BFI is a new 2-dimensional ultrasound modality that offers angle-independent visualization of flow. When integrated with 3-dimensional (3D) navigation technology, BFI can be considered as a first step toward the ideal tool for surgical needs: a real-time, high-resolution, 3D visualization that properly portrays both vessel geometry and flow direction. A 3D model of the vascular tree was extracted from preoperative magnetic resonance angiographic data and used as a reference for intraoperative any-plane guided ultrasound acquisitions. A high-end ultrasound scanner was interconnected, and synchronized recordings of BFI and 3D navigation scenes were acquired. The potential of BFI as an intraoperative tool for flow visualization was evaluated in 3 cerebral aneurysms and 3 arteriovenous malformations. The neurovascular flow direction was properly visualized in all cases using BFI. Navigation technology allowed for identification of the vessels of interest, despite the presence of brain shift. The surgeon found BFI to be very intuitive compared with conventional color Doppler methods. BFI allo...Continue Reading

References

Jan 1, 1978·Ultrasound in Medicine & Biology·J F BrinkleyD W Baker
Jan 1, 1987·Journal of Neurosurgery·I FeuerbergL Steiner
Jan 1, 1984·Neurosurgical Review·J M Gilsbach, W E Hassler
Oct 31, 1997·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·M WoydtK Roosen
Dec 5, 2003·Ultrasound in Medicine & Biology·Frank LindsethJon Bang
May 29, 2004·Acta neurochirurgica·B AlbayrakP M Black
Feb 22, 2005·Medical Image Analysis·J-D BoissonnatM Thiriet
Apr 16, 2005·Ultrasound in Medicine & Biology·Laurence MercierD Louis Collins
Aug 27, 2005·Journal of Neurosurgery·Gador CantónJuan C Lasheras
Dec 20, 2005·Acta neurochirurgica·G UnsgaardT A Nagelhus Hernes
Mar 15, 2006·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Lasse LøvstakkenHans Torp
Apr 1, 2006·Neurosurgery·Wuttipong TirakotaiUlrich Sure
Sep 12, 2006·Journal of Neurosurgery·Andreas RaabeVolker Seifert
Sep 13, 2006·Ultrasound in Medicine & Biology·Thilo HölscherHoi Sang U
Oct 3, 2006·Acta Neurochirurgica. Supplement·C NimskyR Fahlbusch
Dec 6, 2006·Surgical Neurology·Ola M RyghGeirmund Unsgaard
May 22, 2007·Ultrasound in Medicine & Biology·Ole Vegard SolbergToril A Nagelhus Hernes
Aug 8, 2007·Medical Image Analysis·I ReinertsenD L Collins
Mar 22, 2008·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Lasse LovstakkenRune Haaverstad

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