Medical Community: Abstracts
Abstracts:
National Naval Medical Center Screening for Colorectal Neoplasia with Virtual Colonoscopy
EXCERPT: Results of a Prospective Multicenter Trial in 1233 Asymptomatic Adults
ARRS, American Roentgen Ray Society Visualizing All Colon Surfaces in Virtual Colonoscopy
EXCERPT: Virtual colonoscopy (VC) uses CT images and a computer visualization system to virtually navigate within a reconstructed 3-D model of the colon, searching for polyps. There are currently two approaches for VC...
    Real-time Volume Rendering Virtual Colonoscopy Practicum
EXCERPT: This computer exhibit demonstrates the ease in which virtual colonoscopy can be performed with direct endoscopic navigation using a real-time volume rendering system...
An Image Segmentation Approach to Extract Colon Lumen through Colonic Material Tagging and Hidden Markov Random Field Model for Virtual Colonoscopy
EXCERPT: Virtual colonoscopy provides a safe, minimal-invasive approach to detect colonic polyps using medical imaging and computer graphics technologies. Residual stool and fluid are problematic for optimal viewing of the colonic mucosa....
  Electronic Colon Cleansing using Segmentation Rays for Virtual Colonoscopy
EXCERPT: Virtual colonoscopy aims to provide a safe and comfortable technique to screen the entire colon for detection of polyps (cancerous growth). An accurate diagnosis requires a clean, un-obstructed view of the colon lumen during thevirtual fly-through. One way to achieve a clean colon lumen is to perform physical bowel cleansing prior to the image scan. This method, although effective, is highly uncomfortable for the patient. Electronic cleansing provides an alternative solution by removing the residual material from the scanned dataset before the dataset is used for the virtual fly-through...
  Covering all Clinically Significant Areas of the Colon Surface In Virtual Colonoscopy
EXCERPT: Virtual colonoscopy aims to provide a safe and comfortable technique to examine the colon for polyps (cancerous growth). In theory, an accurate diagnosis requires complete coverage of 100% of the lumen surface. Mori et al. presented a method to track observed regions and present unobserved areas to the user (SPIE 4321 pp 134-145). We have developed a similar method that automatically displays, places in sized order and allows viewing of the areas of the colon surface not visualized during initial navigational viewing...
Optimizing Bowel Preparation for Virtual Colonoscopy Electronic Cleansing
EXCERPT: This computer exhibit demonstrates the ease in which virtual colonoscopy can be performed with direct endoscopic navigation using a real-time volume rendering system...
  Endoscopic View in Virtual Colonoscopy: Achieving Complete Surface Visualization
EXCERPT: To compare the amount of lumen surface visualized by virtual colonoscopy to optical, and to use a novel technique to provide complete coverage of all clinically significant areas of the colon...