In this renewal, we propose a series of tools and experiments that systematically build on UNC-CH medical-image-display research and the FilmPlane prototype-medical-image workstation, to take workstation design beyond simply mimicking the two-dimensional viewbox, to that of allowing new image-accessing, image-visualizing, and image-measuring tools to be available quickly and smoothly to the radiologist and attending physician. These tools and medical-image-display techniques hold the potential, not only for improved clinician productivity, but also for significantly improved medical-image interpretation. The following steps are entailed: 1) A 3D Image Index will be designed, constructed, and experimentally compared with 2D image indexes, developed during the current grant. Workstation image-indexes are used by radiologists and attending physicians to locate and display images in the patient folder, reducing cognitive load and improving productivity. We hypothesis that a 3D index will be superior for non-radiologists. 2) Methods for relating information in more than one image will be developed and evaluated. On the one hand, an experiment will be conducted to determine whether sequentially viewing images during image-comparison is a viable alternative to simultaneous (side-by-side) viewing. Sequential viewing may improve the quality of image comparison, and will reduce workstation cost. On the other hand, new tools will be developed, integrated into the FilmPlane, and evaluated, that allow the radiologist to manipulate, compare, and-most importantly-visualize 2D and 3D MR Spectral images relative to anatomic properties measured by the ordinary proton image. 3) A 3D interactive tool for quickly and accurately measuring the volumes of anatomical objects, such as organs and tumors, will be developed and experimentally compared with manual measuring. Volume measuring is important not only for learning absolute size, but also for determining anatomical change, such as tumor growth.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Project (R01)
Project #
2R01CA044060-04A1
Application #
3186604
Study Section
Biomedical Library and Informatics Review Committee (BLR)
Project Start
1986-12-05
Project End
1994-06-30
Budget Start
1991-07-01
Budget End
1992-06-30
Support Year
4
Fiscal Year
1991
Total Cost
Indirect Cost
Name
University of North Carolina Chapel Hill
Department
Type
Schools of Medicine
DUNS #
078861598
City
Chapel Hill
State
NC
Country
United States
Zip Code
27599
Hemminger, Bradley M; Bauers, Anne; Yang, Jian (2008) Comparison of navigation techniques for large digital images. J Digit Imaging 21 Suppl 1:S13-38
Hemminger, Bradley M; Molina, Paul L; Egan, Thomas M et al. (2005) Assessment of real-time 3D visualization for cardiothoracic diagnostic evaluation and surgery planning. J Digit Imaging 18:145-53
Hemminger, B M; Dillon, A W; Johnston, R E et al. (1999) Effect of display luminance on the feature detection rates of masses in mammograms. Med Phys 26:2266-72
Beard, D V; Molina, P L; Muller, K E et al. (1995) Interpretation time of serial chest CT examinations with stacked-metaphor workstation versus film alternator. Radiology 197:753-8
Hemminger, B M; Johnston, R E; Rolland, J P et al. (1995) Introduction to perceptual linearization of video display systems for medical image presentation. J Digit Imaging 8:21-34
Beard, D V; Hemminger, B M; Pisano, E D et al. (1994) Computed tomography interpretations with a low-cost workstation: a timing study. J Digit Imaging 7:133-9
Beard, D V; Hemminger, B M; Denelsbeck, K M et al. (1994) How many screens does a CT workstation need? J Digit Imaging 7:69-76
Beard, D V; Pisano, E D; Denelsbeck, K M et al. (1994) Eye movement during computed tomography interpretation: eyetracker results and image display-time implications. J Digit Imaging 7:189-92
Beard, D V; Hemminger, B M; Perry, J R et al. (1993) Interpretation of CT studies: single-screen workstation versus film alternator. Radiology 187:565-9
Beard, D V; Hemminger, B M; Keefe, B et al. (1993) Real-time radiologist review of remote ultrasound using low-cost video and voice. Invest Radiol 28:732-4

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