Number of mammography cases read per year is a strong predictor of sensitivity

Wasfi I. Suleiman; Sarah Lewis; Dianne Georgian-Smith M.D.; Michael G. Evanoff; Mark F. McEntee

doi:10.1117/1.JMI.1.1.015503

7 May 2014 Number of mammography cases read per year is a strong predictor of sensitivity

Wasfi I. Suleiman, Sarah Lewis, Dianne Georgian-Smith M.D., Michael G. Evanoff, Mark F. McEntee

Author Affiliations +

Journal of Medical Imaging, Vol. 1, Issue 1, 015503 (May 2014). https://doi.org/10.1117/1.JMI.1.1.015503

Abstract

Early detection of breast cancers affects the 5-year recurrence rates and treatment options for diagnosed patients, and consequently, many countries have instituted nationwide screening programs. This study compared the performance of expert radiologists from Australia and the United States in detection of breast cancer. Forty-one radiologists, 21 from Australia and 20 from the United States, reviewed 30 mammographic cases containing two-view mammograms. Twenty cases had abnormal findings and 10 cases had normal findings. Radiologists were asked to locate malignancies and assign a level of confidence. A jackknife free-response receiver operating characteristic, figure of merit (JAFROC, FOM), inferred receiver operating characteristic, area under curve (ROC, AUC), specificity, sensitivity, and location sensitivity were calculated using Ziltron software and JAFROC v4.1. A Mann-Whitney U test was used to compare the performance of Australian and U.S. radiologists. The results showed that when experience and the number of mammograms read per year were taken into account, the Australian radiologists sampled showed significantly higher sensitivity and location sensitivity (p≤0.001 ). JAFROC (FOM) and inferred ROC (AUC) analysis showed no difference between the overall performance of the two countries. ROC (AUC) and location sensitivity were higher for the Australian radiologists who read the most cases per year.

Citation Download Citation

Wasfi I. Suleiman, Sarah Lewis, Dianne Georgian-Smith M.D., Michael G. Evanoff, and Mark F. McEntee "Number of mammography cases read per year is a strong predictor of sensitivity," Journal of Medical Imaging 1(1), 015503 (7 May 2014). https://doi.org/10.1117/1.JMI.1.1.015503

Published: 7 May 2014

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