ArticleProceedings of SPIE--the International Society for Optical Engineering2021
Evaluation of methods to derive blood flow velocity from 1000 fps high-speed angiographic sequences (HSA) using optical flow (OF) and computational fluid dynamics (CFD).
Article in Proceedings of SPIE--the International Society for Optical Engineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- First In-Vivo demonstration of 1000fps High Speed Coronary Angiography (HSCA) in a swine animal model.Proceedings of SPIE--the International Society for Optical Engineering · 2024Article
- Angiographic velocimetry analysis using contrast dilution gradient method with a 1000 frames per second photon-counting detector.Journal of medical imaging (Bellingham, Wash.) · 2023Article
- Use of high-speed angiography HSA-derived boundary conditions and Physics Informed Neural Networks (PINNs) for comprehensive estimation of neurovascular hemodynamics.Proceedings of SPIE--the International Society for Optical Engineering · 2023Article
- 2D versus 3D comparison of angiographic imaging biomarkers using computational fluid dynamics simulations of contrast injections.Proceedings of SPIE--the International Society for Optical Engineering · 2023Article
- Determining 3D Distributions of Pulsatile Blood Flow Using Orthogonal Simultaneous Biplane High-Speed Angiography (SB-HSA) with 1000 fps CdTe Photon Counting Detectors for 3D X-ray Particle Image Velocimetry (3D-XPIV) compared to Results Using Computational Fluid Dynamics (CFD).Proceedings of SPIE--the International Society for Optical Engineering · 2023Article
- Investigating Angiographic Injection Parameters for Cerebral Aneurysm Hemodynamic Characterization Using Patient-Specific Simulated Angiograms.Proceedings of SPIE--the International Society for Optical Engineering · 2023Article
- Initial investigations of scatter cross-talk in simultaneous biplane high-speed 1000 frames per second neuro-angiography using Monte Carlo simulations.Proceedings of SPIE--the International Society for Optical EngineeringArticle
- Derivation of vascular wall shear stress from 1000 fps high-speed angiography (HSA) velocity distributions.Proceedings of SPIE--the International Society for Optical EngineeringArticle
- Simultaneous Biplane High Speed 1000 fps X-ray Angiography (HSAngio).Proceedings of SPIE--the International Society for Optical EngineeringArticle
- Use of 1000fps High Speed X-ray Angiography (HSAngio) to quantify differences in flow diversion effects of three stents with different coverage densities in a cerebral aneurysm invitro model.Proceedings of SPIE--the International Society for Optical EngineeringArticle
- 2D vessel contrast dilution gradient (CDG) analysis using 1000 fps high speed angiography (HSA) for velocity distribution estimation.Proceedings of SPIE--the International Society for Optical EngineeringArticle
- Initial evaluation of 2D and 3D simulated high-speed 1000 fps vascular contrast-flow image sequences using computational fluid dynamics (CFD).Proceedings of SPIE--the International Society for Optical EngineeringArticle
- Semi-automatic Co-Registration of 3D CFD Vascular Geometry to 1000 FPS High-Speed Angiographic (HSA) Projection Images for Flow Determination Comparisons.Proceedings of SPIE--the International Society for Optical EngineeringArticle
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5 authors.
Funding
Abstract
Digital Subtraction Angiography (DSA) is considered the gold standard for imaging and guiding treatment of neurovascular lesions, such as cerebral aneurysms and carotid stenoses. Though DSA can show high-resolution morphology, it remains difficult to extract temporal physiological information, because higher frame-rates are necessary to accurately quantify neurovascular flow details. Recent advances in photon-counting detector technology have led us to develop High-Speed Angiography (HSA), where X-ray images are acquired at 1000 fps for more accurate visualization and quantification of blood flow. Blood flow was imaged using HSA under constant flow conditions within various 3D printed patient-specific phantoms. Blood velocity was quantified using an open source Optical Flow algorithm, OpenOpticalFlow, to perform velocity estimation based on the spatio-temporal intensity changes of iodinated contrast wavefronts. The results of these algorithms are then compared with Computational Fluid Dynamics (CFD) simulations, using the same inlet boundary conditions and model geometries. The performance of these algorithms at lower temporal resolution was then also assessed by simulating lower frame rates from the acquired 1000 fps data. It is important to ascertain the hemodynamic effect of abnormal neurovascular conditions, as well as their effect on treatment of such conditions during the actual clinical interventional procedure. While theoretical CFD results requiring considerable computer capability are delayed for hours or more, it is expected that clinical results from multiple HSA sequences will be available almost immediately while the patient is still under treatment, and even right after flow conditions are changed beneficially by the intervention.
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