Mass detection in breast tomosynthesis and digital mammography: a model observer study

C. Castella; M. Ruschin; M. P. Eckstein; C. K. Abbey; K. Kinkel; F. R. Verdun; A. Tingberg; F. O. Bochud

doi:10.1117/12.811131

12 March 2009 Mass detection in breast tomosynthesis and digital mammography: a model observer study

C. Castella, M. Ruschin, M. P. Eckstein, C. K. Abbey, K. Kinkel, F. R. Verdun, A. Tingberg, F. O. Bochud

Proceedings Volume 7263, Medical Imaging 2009: Image Perception, Observer Performance, and Technology Assessment; 72630O (2009) https://doi.org/10.1117/12.811131
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

In this study, we adapt and apply model observers within the framework of realistic detection tasks in breast tomosynthesis (BT). We use images consisting of realistic masses digitally embedded in real patient anatomical backgrounds, and we adapt specific model observers that have been previously applied to digital mammography (DM). We design alternative forced-choice experiments (AFC) studies for DM and BT tasks in the signal known exactly but variable (SKEV) framework. We compare performance of various linear model observers (non-prewhitening matched filter with an eye filter, and several channelized Hotelling observers (CHO) against human. A good agreement in performance between human and model observers can be obtained when an appropriate internal noise level is adopted. Models achieve the same detection performance across BT and DM with about three times less projected signal intensity in BT than in DM (humans: 3.8), due to the anatomical noise reduction in BT. We suggest that, in the future, model observers can potentially be used as an objective tool for automating the optimization of BT acquisition parameters or reconstruction algorithms, or narrowing a wide span of possible parameter combinations, without requiring human observers studies.

Citation Download Citation

C. Castella, M. Ruschin, M. P. Eckstein, C. K. Abbey, K. Kinkel, F. R. Verdun, A. Tingberg, and F. O. Bochud "Mass detection in breast tomosynthesis and digital mammography: a model observer study", Proc. SPIE 7263, Medical Imaging 2009: Image Perception, Observer Performance, and Technology Assessment, 72630O (12 March 2009); https://doi.org/10.1117/12.811131

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