Innovative Integration of 4D Cardiovascular Reconstruction and Hologram: Framework Development of a New Visualization Tool for Coronary Artery Bypass Grafting Planning

Planning for coronary artery bypass grafting (CABG) necessitates advanced spatial visualization skills and consideration of multiple factors, including the depth of coronary arteries within the subepicardium, calcification levels, and pericardial adhesions. This study aimed to address these requirem...

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Vydáno v:JMIR medical informatics Ročník 13; s. e72237
Hlavní autoři: Wang, Shuo, Ren, Tong, Cheng, Nan, Zhang, Li, Wang, Rong
Médium: Journal Article
Jazyk:angličtina
Vydáno: Canada JMIR Publications 30.09.2025
Témata:
Aged
Calcification
Cardiovascular disease
Clinical medicine
Collaboration
Computed Tomography Angiography - methods
Coronary Artery Bypass - methods
Coronary vessels
Coronary Vessels - diagnostic imaging
Endocarditis
Female
Heart surgery
Holography - methods
Humans
Magnetic resonance imaging
Male
Medical imaging
Middle Aged
Patients
Performance evaluation
Surgical outcomes
Tomography
Vein & artery diseases
Visualization
4D cardiac CT angiogram
coronary artery bypass graft
4D cardiovascular modeling
CABG
preoperative planning
hologram
ISSN:2291-9694, 2291-9694
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Shrnutí:Planning for coronary artery bypass grafting (CABG) necessitates advanced spatial visualization skills and consideration of multiple factors, including the depth of coronary arteries within the subepicardium, calcification levels, and pericardial adhesions. This study aimed to address these requirements by reconstructing a dynamic cardiovascular model, displaying it as a naked-eye hologram, and evaluating the clinical utility of this innovative visualization tool for preoperative CABG planning. We used preoperative 4D cardiac computed tomography angiography (4D-CCTA) data from 14 patients scheduled for CABG to develop a semiautomated workflow. This workflow enabled time-resolved segmentation of the heart chambers, epicardial adipose tissue (EAT), and coronary arteries, complete with calcium scoring. Methods for segmenting cardiac structures, quantifying coronary calcification, visualizing coronary depth within EAT, and assessing pericardial adhesions via motion analysis were incorporated. These dynamic reconstructions captured spatial relationships, coronary stenosis, calcification, and depth in EAT, as well as pericardial adhesions. Dynamic cardiovascular holograms were then generated and displayed using the Looking Glass platform (Looking Glass Factory Inc). Thirteen cardiac surgeons assessed the utility of the holographic visualization tool on a Likert scale. In addition, a surgeon visually scored pericardial adhesions using the holograms of all 21 patients (including 7 undergoing secondary cardiac surgeries) and compared these scores with actual intraoperative findings. Cardiac surgeons highly rated the visualization tool for its utility in preoperative planning, with a mean Likert score of 4.57/5.0 (SD 0.5). The hologram-based scoring of pericardial adhesions showed a strong correlation with intraoperative findings (correlation coefficient r=0.786; P<.001). This study delineates the structural framework of a visualization tool specifically designed for preoperative CABG planning. It produces high-quality, clinically relevant, dynamic holograms from patient-specific volumetric data, with clinical feedback confirming its practicality and effectiveness for preoperative surgical planning.
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ISSN:2291-9694
2291-9694
DOI:10.2196/72237