Automatic heart localization and radiographic index computation in chest x-rays

Sema Candemir; Stefan Jaeger; Wilson Lin; Zhiyun Xue; Sameer Antani; George Thoma

doi:10.1117/12.2217209

24 March 2016 Automatic heart localization and radiographic index computation in chest x-rays

Sema Candemir, Stefan Jaeger, Wilson Lin, Zhiyun Xue, Sameer Antani, George Thoma

Proceedings Volume 9785, Medical Imaging 2016: Computer-Aided Diagnosis; 978517 (2016) https://doi.org/10.1117/12.2217209
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

This study proposes a novel automated method for cardiomegaly detection in chest X-rays (CXRs). The algo- rithm has two main stages: i) heart and lung region localization on CXRs, and ii) radiographic index extraction from the heart and lung boundaries. We employed a lung detection algorithm and extended it to automatically compute the heart boundaries. The typical models of heart and lung regions are learned using a public CXR dataset with boundary markings. The method estimates the location of these regions in candidate ('patient') CXR images by registering models to the patient CXR. For the radiographic index computation, we implemented the traditional and recently published indexes in the literature. The method is tested on a database with 250 abnormal, and 250 normal CXRs. The radiographic indexes are combined through a classifier, and the method successfully classifies the patients with cardiomegaly with a 0:77 accuracy, 0:77 sensitivity and 0:76 specificity.

Citation Download Citation

Sema Candemir, Stefan Jaeger, Wilson Lin, Zhiyun Xue, Sameer Antani, and George Thoma "Automatic heart localization and radiographic index computation in chest x-rays", Proc. SPIE 9785, Medical Imaging 2016: Computer-Aided Diagnosis, 978517 (24 March 2016); https://doi.org/10.1117/12.2217209

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