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. 2016:220:295-300.

The Virtual Pediatric Airways Workbench

Cory W Quammen  1 , Russell M Taylor 2nd  2 , Pavel Krajcevski  2 , Sorin Mitran  3 , Andinet Enquobahrie  1 , Richard Superfine  4 , Brad Davis  1 , Stephanie Davis  5 , Carlton Zdanski  6
Affiliations

The Virtual Pediatric Airways Workbench

Cory W Quammen et al. Stud Health Technol Inform. 2016.

Abstract

The Virtual Pediatric Airways Workbench (VPAW) is a patient-centered surgical planning software system targeted to pediatric patients with airway obstruction. VPAW provides an intuitive surgical planning interface for clinicians and supports quantitative analysis regarding prospective surgeries to aid clinicians deciding on potential surgical intervention. VPAW enables a full surgical planning pipeline, including importing DICOM images, segmenting the airway, interactive 3D editing of airway geometries to express potential surgical treatment planning options, and creating input files for offline geometric analysis and computational fluid dynamics simulations for evaluation of surgical outcomes. In this paper, we describe the VPAW system and its use in one case study with a clinician to successfully describe an intended surgery outcome.

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Figures

Figure 1
Figure 1
Subglottic stenosis in one patient. A: CT sagittal slice showing stenosis. B: pre-operative laryngoscopy. C: 1-year post-operative laryngoscopy.
Figure 2
Figure 2
Surgical planning workflow using the segmentation, surgery modeling, visualization, and simulation components of VPAW (bold outline). Feedback from visualization, airflow simulation, and geometric analysis may be used to guide the surgical modeling.
Figure 3
Figure 3
Available airway surface texturing modes that can be applied in VPAW. A: Semi-realistic solid surface. B: 1mm grid texture for approximate measuring of anatomical features. C: High-frequency Perlin noise texture for improved shape perception.
Figure 4
Figure 4
VPAW’s user interface. The airway surface (upper left) is displayed with a cutaway view where camera-facing portions are displayed as a wireframe and other portions are a solid textured surface. The center position of a 2mm spherical brush (yellow sphere) is displayed with green crosshairs in the three orthogonal views (top right and bottom).
Figure 5
Figure 5
Comparison of airway geometry at stenotic region viewed externally from anterior. A: pre- operative airway when patient was 9 months old. B: intended surgical outcome described with VPAW. C: post-operative airway from follow-up CT scan obtained at 20 months.
See this image and copyright information in PMC

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