Prediction of polyp histology on CT colonography using content-based image retrieval

Javed M. Aman; Jianhua Yao; Ronald M. Summers

doi:10.1117/12.844571

9 March 2010 Prediction of polyp histology on CT colonography using content-based image retrieval

Javed M. Aman, Jianhua Yao, Ronald M. Summers

Proceedings Volume 7624, Medical Imaging 2010: Computer-Aided Diagnosis; 76240D (2010) https://doi.org/10.1117/12.844571
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

Predicting the malignancy of colonic polyps is a difficult problem and in general requires an invasive polypectomy procedure. We present a less-invasive and automated method to predict the histology of colonic polyps under computed tomographic colonography (CTC) using the content-based image retrieval (CBIR) paradigm. For the purpose of simplification, polyps annotated as hyperplastic or "other benign" were classified as benign polyps (BP) and the rest (adenomas and cancers) were classified as malignant polyps (MP). The CBIR uses numerical feature vectors generated from our CTC computer aided detection (CTC-CAD) system to describe the polyps. These features relate to physical and visual characteristics of the polyp. A representative database of CTC-CAD polyp images is created. Query polyps are matched with those in the database and the results are ranked based on the similarity to the query. Polyps with a majority of representative MPs in their result set are predicted to be malignant and similarly those with a majority of BPs in their results are benign. For evaluation, the system is compared to the typical optical colonoscopy (OC) size based classification. Using receiver operating curve (ROC) analysis, we show our system is sufficiently better than the OC size method.

Citation Download Citation

Javed M. Aman, Jianhua Yao, and Ronald M. Summers "Prediction of polyp histology on CT colonography using content-based image retrieval", Proc. SPIE 7624, Medical Imaging 2010: Computer-Aided Diagnosis, 76240D (9 March 2010); https://doi.org/10.1117/12.844571

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