Visualizing (veterinary) medical data sets with Jetstream
TimeTuesday, July 306:30pm - 8:30pm
LocationCrystal Foyer and Crystal B
DescriptionComputed tomography (CT) is a diagnostic imaging test using x-rays to create multiple detailed diagnostic images of internal organs, bones, soft tissue and blood vessels. It produces a data set of thin, cross-sectional “slices” for viewing and is much more detailed than conventional radiography. Clinicians use CT examination to diagnose cancers, detect abnormal blood vessels, discover disorders of the abdomen, bones, and joints, and to plan surgical interventions such as heart defect or vascular repair. Dedicated visualization workstations allow radiologists to make high-resolution examinations of the data for diagnoses, but understanding the image stacks can be challenging for clinicians without specialized skills, training, and experience. To aid and enhance diagnostic evaluation, we explored a cloud-based workflow using Jetstream. CT data sets were segmented or translated into regions-of-interest (ROI) and/or volumetric 3D reconstructions which were then exported as polygonal 3D surface models. Using data sets obtained via CT from different species, this project focused on compiling a medical imaging/segmentation workstation instance with open source software on Jetstream, importing sample data sets into the imaging software, viewing 2D image sequences volumetrically, setting custom transfer functions based on tissue density, and segmenting the anatomy into multiple ROI for export as stereolithography files. Post-processing and polygon mesh editing techniques (smoothing, transient reduction, decimation) were demonstrated as the model was optimized for 3D printing or online distribution. Results were rendered into 2D graphical representations, the 3D models were deployed into interactive or virtual reality environments, or additively-manufactured into real-world objects for visual and tactile examination.