Vessel Maps: A Survey of Map‐Like Visualizations of the Cardiovascular System

Eulzer, Pepe; Meuschke, Monique; Mistelbauer, Gabriel; Lawonn, Kai

doi:10.1111/cgf.14576

Cited by 7 publications

(7 citation statements)

References 163 publications

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“…Various mesh parametrization techniques have been developed, aiding in scalar field analysis. Eulzer et al [EMML22] presented an extensive overview of mapping vascular structures into 2D, and Kreiser et al [KMM*18] explored mapping techniques in other medical areas like the brain and colon. In the following, we review vessel parametrization techniques, as they were also employed in the validation of our approach.…”

Section: Related Workmentioning

confidence: 99%

InverseVis: Revealing the Hidden with Curved Sphere Tracing

Lawonn,

Meuschke,

Günther

2024

Computer Graphics Forum

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Exploratory analysis of scalar fields on surface meshes presents significant challenges in identifying and visualizing important regions, particularly on the surface's backside. Previous visualization methods achieved only a limited visibility of significant features, i.e., regions with high or low scalar values, during interactive exploration. In response to this, we propose a novel technique, InverseVis, which leverages curved sphere tracing and uses the otherwise unused space to enhance visibility. Our approach combines direct and indirect rendering, allowing camera rays to wrap around the surface and reveal information from the backside. To achieve this, we formulate an energy term that guides the image synthesis in previously unused space, highlighting the most important regions of the backside. By quantifying the amount of visible important features, we optimize the camera position to maximize the visibility of the scalar field on both the front and backsides. InverseVis is benchmarked against state‐of‐the‐art methods and a derived technique, showcasing its effectiveness in revealing essential features and outperforming existing approaches.

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Section: Related Workmentioning

confidence: 99%

InverseVis: Revealing the Hidden with Curved Sphere Tracing

Lawonn,

Meuschke,

Günther

2024

Computer Graphics Forum

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“…These are primarily techniques that simplify complex 3D vascular structures to 2D abstractions [KMM*18]. Often used abstractions are vessel maps [EMML22], which are fundamentally map‐like visualizations of vascular structures. Vessel maps have been created of the carotid to view surface fields of flow parameters without occlusion [ERM*21] and to track plaque development over multiple sonography scanning sessions [CCLC17,CCR20].…”

Section: Related Workmentioning

confidence: 99%

Instantaneous Visual Analysis of Blood Flow in Stenoses Using Morphological Similarity

Eulzer,

Richter,

Hundertmark

et al. 2024

Computer Graphics Forum

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The emergence of computational fluid dynamics (CFD) enabled the simulation of intricate transport processes, including flow in physiological structures, such as blood vessels. While these so‐called hemodynamic simulations offer groundbreaking opportunities to solve problems at the clinical forefront, a successful translation of CFD to clinical decision‐making is challenging. Hemodynamic simulations are intrinsically complex, time‐consuming, and resource‐intensive, which conflicts with the time‐sensitive nature of clinical workflows and the fact that hospitals usually do not have the necessary resources or infrastructure to support CFD simulations. To address these transfer challenges, we propose a novel visualization system which enables instant flow exploration without performing on‐site simulation. To gain insights into the viability of the approach, we focus on hemodynamic simulations of the carotid bifurcation, which is a highly relevant arterial subtree in stroke diagnostics and prevention. We created an initial database of 120 high‐resolution carotid bifurcation flow models and developed a set of similarity metrics used to place a new carotid surface model into a neighborhood of simulated cases with the highest geometric similarity. The neighborhood can be immediately explored and the flow fields analyzed. We found that if the artery models are similar enough in the regions of interest, a new simulation leads to coinciding results, allowing the user to circumvent individual flow simulations. We conclude that similarity‐based visual analysis is a promising approach toward the usability of CFD in medical practice.

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“…The latter rely on a processing pipeline that extracts geometric models from volume images. These can then be further used in advanced visualizations showing, e.g., blood flow features [OJMN * 19] or map‐like depictions with strategically reduced visual complexity [EMML22]. Eulzer et al [EMKL21] specifically target the visualization of hemodynamics in carotid stenoses.…”

Section: Related Workmentioning

confidence: 99%

“…Eulzer et al [EMKL21] specifically target the visualization of hemodynamics in carotid stenoses. Wall‐related parameters like shear stress or plaque distribution at the carotid bifurcation have been visualized using parameterizations of the vessel surface geometry [CLC13, CCR20, ERM * 21]. Lawonn et al [LMW * 19] propose a technique for detecting and segmenting aneurysms (pathological vessel bulges).…”

Section: Related Workmentioning

confidence: 99%

“…Considering the prevalence of cardiovascular disease, it is unsurprising that abundant proposals have been made to improve monitoring, treatment planning, and medical research using techniques from the visualization toolbox. This includes volume renderings [KGNP12], image reformations [MMV * 13, RFK * 07], maplike depictions [EMML22], and visualizations of hemodynamics (blood flow) [OJMN * 19]. In spite of the positive feedback of potential users for these algorithms and applications and decades of development, we find that the majority of techniques are hardly on their way to being used in clinical practice or medical research.…”

Section: Introductionmentioning

confidence: 99%

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