Ms. Silvani D. Amin Profile

Silvani D. Amin

at Children's Hospital of Philadelphia

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Proceedings Article | 29 March 2024 Presentation + Paper

3D echocardiogram visualization: a new method based on focus + context

Samuelle St-Onge, Silvani Amin, Alana Cianciulli, Matthew Jolley, Simon Drouin

Proceedings Volume 12929, 129290T (2024) https://doi.org/10.1117/12.3006214

KEYWORDS: Visualization, Anatomy, Volume rendering, Opacity, Voxels, Heart, Optical transfer functions, Echocardiography, Ultrasonography, Magnetic resonance imaging

Read Abstract +

3D echocardiography (3DE) is the standard modality for visualizing heart valves and their surrounding anatomical structures. Commercial cardiovascular ultrasound systems commonly offer a set of parameters that allow clinical users to modify, in real time, visual aspects of the information contained in the echocardiogram. To our knowledge, there is currently no work that demonstrates if the methods currently used by commercial platforms are optimal. In addition, current platforms have limitations in adjusting the visibility of anatomical structures, such as reducing information that obstructs anatomical structures without removing essential clinical information. To overcome this, the present work proposes a new method for 3DE visualization based on “focus + context” (F+C), a concept which aims to present a detailed region of interest while preserving a less detailed overview of the surrounding context. The new method is intended to allow clinical users to modify parameter values differently within a certain region of interest, independently from the adjustment of contextual information. To validate this new method, a user study was conducted amongst clinical experts. As part of the user study, clinical experts adjusted parameters for five echocardiograms of patients with complete atrioventricular canal defect (CAVC) using both the method conventionally used by commercial platforms and the proposed method based on F+C. The results showed relevance for the F+C-based method to visualize 3DE of CAVC patients, where users chose significantly different parameter values with the F+C-based method.

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