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Development and evaluation of a novel method for in-situ medical image display

Shukla, Gaurav (2011) Development and evaluation of a novel method for in-situ medical image display. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Three-dimensional (3D) medical imaging, including computed tomography (CT) and magnetic resonance (MR), and other modalities, has become a standard of care for diagnosis of disease and guidance of interventional procedures. As the technology to acquire larger, more magnificent, and more informative medical images advances, so too must the technology to display, interact with, and interpret these data.This dissertation concerns the development and evaluation of a novel method for interaction with 3D medical images called "grab-a-slice," which is a movable, tracked stereo display. It is the latest in a series of displays developed in our laboratory that we describe as in-situ, meaning that the displayed image is embedded in a physical 3D coordinate system. As the display is moved through space, a continuously updated tomographic slice of a 3D medical image is shown on the screen, corresponding to the position and orientation of the display. The act of manipulating the display through a "virtual patient" preserves the perception of 3D anatomic relationships in a way that is not possible with conventional, fixed displays. The further addition of stereo display capabilities permits augmentation of the tomographic image data with out-of-plane structures using 3D graphical methods.In this dissertation we describe the research and clinical motivations for such a device. We describe the technical development of grab-a-slice as well as psychophysical experiments to evaluate the hypothesized perceptual and cognitive benefits. We speculate on the advantages and limitations of the grab-a-slice display and propose future directions for its use in psychophysical research, clinical settings, and image analysis.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairStetten, Georgestetten@pitt.eduSTETTEN
Committee MemberChapman,
Committee MemberAizenstein, Howardaizensteinhj@upmc.eduAIZEN
Committee MemberKlatzky,
Date: 27 June 2011
Date Type: Completion
Defense Date: 16 March 2011
Approval Date: 27 June 2011
Submission Date: 1 April 2011
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Bioengineering
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: Image display; input devices and strategies; interaction styles; medical information systems; real time; stereoscopic display
Other ID:, etd-04012011-140137
Date Deposited: 10 Nov 2011 19:33
Last Modified: 19 Dec 2016 14:35


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