Content-based image retrieval applied to bone age assessment

Benedikt Fischer; André Brosig; Petra Welter; Christoph Grouls; Rolf W. Günther; Thomas M. Deserno

doi:10.1117/12.844392

9 March 2010 Content-based image retrieval applied to bone age assessment

Benedikt Fischer, André Brosig, Petra Welter, Christoph Grouls, Rolf W. Günther, Thomas M. Deserno

Proceedings Volume 7624, Medical Imaging 2010: Computer-Aided Diagnosis; 762412 (2010) https://doi.org/10.1117/12.844392
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

Radiological bone age assessment is based on local image regions of interest (ROI), such as the epiphysis or the area of carpal bones. These are compared to a standardized reference and scores determining the skeletal maturity are calculated. For computer-aided diagnosis, automatic ROI extraction and analysis is done so far mainly by heuristic approaches. Due to high variations in the imaged biological material and differences in age, gender and ethnic origin, automatic analysis is difficult and frequently requires manual interactions. On the contrary, epiphyseal regions (eROIs) can be compared to previous cases with known age by content-based image retrieval (CBIR). This requires a sufficient number of cases with reliable positioning of the eROI centers. In this first approach to bone age assessment by CBIR, we conduct leaving-oneout experiments on 1,102 left hand radiographs and 15,428 metacarpal and phalangeal eROIs from the USC hand atlas. The similarity of the eROIs is assessed by cross-correlation of 16x16 scaled eROIs. The effects of the number of eROIs, two age computation methods as well as the number of considered CBIR references are analyzed. The best results yield an error rate of 1.16 years and a standard deviation of 0.85 years. As the appearance of the hand varies naturally by up to two years, these results clearly demonstrate the applicability of the CBIR approach for bone age estimation.

Citation Download Citation

Benedikt Fischer, André Brosig, Petra Welter, Christoph Grouls, Rolf W. Günther, and Thomas M. Deserno "Content-based image retrieval applied to bone age assessment", Proc. SPIE 7624, Medical Imaging 2010: Computer-Aided Diagnosis, 762412 (9 March 2010); https://doi.org/10.1117/12.844392

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