AneurysmFlow
Cerebral aneurysm flow quantification
AneurysmFlow
Cerebral aneurysm flow quantification
Assessing impact of embolization devices, like flow diverters, on blood flow right after deployment is crucial. AneurysmFlow is designed to provide relevant information based on quantification of blood flow changes.
Clinical image gallery
Features
Expanding functional understanding
Currently, a combination of digital subtraction angiography (DSA) and three-dimensional rotational angiography (3DRA) is the gold standard for imaging vascular lesions, but it provides limited functional information about flow. AneurysmFlow uses novel algorithms based on the optical flow principle to convert information from a 3DRA acquisition and 2D DSA flow sequences into quantitative flow values. These values are used to visualize and quantify flow dynamics before and after flow diverter deployment in cerebral aneurysms.
Step-by-step workflow
AneurysmFlow supports endovascular treatment of saccular cerebral aneurysms with embolization devices, such as flow diverters. Data acquisition can be controlled at the tableside during the normal workflow, while analysis is performed in the control room.
Relevant information about blood vessel flow
Flow diverters are being increasingly used to treat cerebral aneurysms, but flow diversion procedures remain challenging. Only 76% of all aneurysm flow diversion cases result in thrombosis after 6 month follow-up,¹ which poses a risk to the patient. Several authors have shown that the flow pattern inside aneurysms is considered one of the parameters that can be used to predict rupture and clotting.²,³
AneurysmFlow is the first tool that visualizes and quantifies flow changes in the parent vessel and aneurysm before and after flow diverter deployment. It also provides a unique metric – the Mean Aneurysm Flow Amplitude (MAFA) ratio.
Related products
- SmartCT Roadmap facilitates complex interventions by providing live 3D image guidance that can be segmented, using SmartCT Angio or SmartCT Soft Tissue, to emphasize target vessel and lesions, aiding guidewire and catheter navigation through complex vessel structures. All controlled via the touch screen at the table.
- SmartCT Vaso provides high resolution 3D imaging that reveals key information about cerebral vascular structures to support the highest possible spatial assessment of vessels in the soft tissue context.
- SmartCT Soft Tissue offers a Cone Beam CT (CBCT) acquisition technique augmented with step-by-step guidance, advanced 3D visualization and measurement tools all accessible on the touch screen module at table side. To support you in acquiring CBCT images first-time right [1] and to streamline your workflow, you are guided through key steps. Once the CBCT scan is successfully performed, the acquired 3D image is automatically displayed in the SmartCT 3D visualization tool with the appropriate rendering settings and the 3D measurement tools tailored for the selected 3D protocol.
- This X-ray acquisition technique generates a complete high-resolution 3D visualization of cerebral, cardiac, abdominal or peripheral vasculature from a single rotational angiography run – all controlled via the touch screen at the table. This can improve visibility of tortuous or complex anatomy.
Disclaimer
1. Brinjikji W, Murad MH, Lanzino G. et al. Endovascular treatment of intracranial aneurysms with flow diverters: a meta-analysis. Stroke. 2013;44:442–447.
2. Augsburger L, et al. Methodologies to assess blood flow in cerebral aneurysms: Current state of research and perspectives. J Neurorad. 2009;36:270–277.
3. Sforza DM, Putman CM, Cebral JR. Hemodynamics of Cerebral Aneurysms. Annu Rev Fluid Mech. 2009; 41:91–107.
This product is based on open source software.