Clinical validation and performance evaluation of enhancement methods acquired from interventional C-ARM x-ray

Liyang Wei; Dinesh Kumar; Animesh Khemka; Ram Turlapati; Jasjit S. Suri

doi:10.1117/12.770734

26 March 2008 Clinical validation and performance evaluation of enhancement methods acquired from interventional C-ARM x-ray

Liyang Wei, Dinesh Kumar, Animesh Khemka, Ram Turlapati, Jasjit S. Suri

Author Affiliations +

Proceedings Volume 6914, Medical Imaging 2008: Image Processing; 691426 (2008) https://doi.org/10.1117/12.770734
Event: Medical Imaging, 2008, San Diego, California, United States

Abstract

Digital Subtraction Angiography (DSA) is a well-established powerful modality for the visualization of stenosis and blood vessels in general. This paper presents two novel approaches which address image quality. In the first approach we combine anisotropic diffusion with nonlinear normalization. The second approach consists of an introduction of a regularization strategy followed by a classification procedure to improve the enhancement. The performances of two strategies are evaluated based on a database of 73 subjects using SNR, CNR and Tenengrad's metric. Compared with conventional DSA, Eigen's diffusion embedded nonlinear enhancement strategies can improve image quality 95.25% in terms of SNR. The regularization embedded linear enhancement strategy can also improve SNR 51.46% compared with conventional DSA. Similar results are obtained by CNR and Tenengrad's metric measurements. Our system runs on a PC-based workstation using C++ in Windows environment.

Citation Download Citation

Liyang Wei, Dinesh Kumar, Animesh Khemka, Ram Turlapati, and Jasjit S. Suri "Clinical validation and performance evaluation of enhancement methods acquired from interventional C-ARM x-ray", Proc. SPIE 6914, Medical Imaging 2008: Image Processing, 691426 (26 March 2008); https://doi.org/10.1117/12.770734

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