GI tract unraveling by spiral CT

Ge Wang; Michael W. Vannier M.D.

doi:10.1117/12.208702

12 May 1995 GI tract unraveling by spiral CT

Ge Wang, Michael W. Vannier M.D.

Proceedings Volume 2434, Medical Imaging 1995: Image Processing; (1995) https://doi.org/10.1117/12.208702
Event: Medical Imaging 1995, 1995, San Diego, CA, United States

Abstract

The GI tract examination with CT and MRI is currently performed by slice-based inspection despite the volumetric nature of the problem. With this paper we propose to unravel the GI tract digitally to facilitate, quantify and automate the process. To demonstrate the feasibility, an algorithm was developed to unravel and measure convoluted curvilinear structures. In the algorithm, a local K-L transform was applied along the main axis of the structure to estimate the local orientation as determined by the principal eigenvector. An adult dog bowel piece was spirally scanned in vitro and reconstructed. A digital GI tract phantom was designed and numerically synthesized. In both cases, the structures were successfully followed using our unraveling algorithm, the lengths of the structures measured with less than 5% error, and cross-sectional features of the GI tract phantom were defined, computed and plotted.

Citation Download Citation

Ge Wang and Michael W. Vannier M.D. "GI tract unraveling by spiral CT", Proc. SPIE 2434, Medical Imaging 1995: Image Processing, (12 May 1995); https://doi.org/10.1117/12.208702

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available