A new electronic colon cleansing method for virtual colonoscopy

Lihong Li; Su Wang; Jing Wang; Daria Eremina; Xinzhou Wei; Zhengrong Liang

doi:10.1117/12.710242

29 March 2007 A new electronic colon cleansing method for virtual colonoscopy

Lihong Li, Su Wang, Jing Wang, Daria Eremina, Xinzhou Wei, Zhengrong Liang

Proceedings Volume 6511, Medical Imaging 2007: Physiology, Function, and Structure from Medical Images; 65112J (2007) https://doi.org/10.1117/12.710242
Event: Medical Imaging, 2007, San Diego, CA, United States

Abstract

Virtual colonoscopy has been developed as a non-invasive, safe, and low-cost method to evaluate colon polyps. Implementation and efficiency of virtual colonoscopy requires rigorous cleansing of colon prior to the examination. Electronic colon cleansing is a new technology that virtually clean stool residues tagged with contrast agents from the obtained computed tomography (CT) images. From our previous studies on electronic colon cleansing, we found that residual stool and fluid are often problematic for optimal viewing of colon. In this paper, we focus on developing a model-based approach to correct both non-uniformity and partial volume effects appearing in regions of bone and tagged stool residues. A statistical method for maximum a posterior probability (MAP) was developed to identify and virtually clean the tagged stool residuals. In calculating the solution, the well-known expectation maximization (EM) algorithm is employed. Experimental results of electronic colon cleansing are promising.

Citation Download Citation

Lihong Li, Su Wang, Jing Wang, Daria Eremina, Xinzhou Wei, and Zhengrong Liang "A new electronic colon cleansing method for virtual colonoscopy", Proc. SPIE 6511, Medical Imaging 2007: Physiology, Function, and Structure from Medical Images, 65112J (29 March 2007); https://doi.org/10.1117/12.710242

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