Evaluation of an adaptive filtering algorithm for CT cardiac imaging with EKG modulated tube current

Jianying Li; Jiang Hsieh; Kelly Mohr; Darin Okerlund

doi:10.1117/12.595306

20 April 2005 Evaluation of an adaptive filtering algorithm for CT cardiac imaging with EKG modulated tube current

Jianying Li, Jiang Hsieh, Kelly Mohr, Darin Okerlund

Proceedings Volume 5745, Medical Imaging 2005: Physics of Medical Imaging; (2005) https://doi.org/10.1117/12.595306
Event: Medical Imaging, 2005, San Diego, California, United States

Abstract

We have developed an adaptive filtering algorithm for cardiac CT scans with EKG-modulated tube current to optimize resolution and noise for different cardiac phases and to provide safety net for cases where end-systole phase is used for coronary imaging. This algorithm has been evaluated using patient cardiac CT scans where lower tube currents are used for the systolic phases. In this paper, we present the evaluation results. The results demonstrated that with the use of the proposed algorithm, we could improve image quality for all cardiac phases, while providing greater noise and streak artifact reduction for systole phases where lower CT dose were used.

Citation Download Citation

Jianying Li, Jiang Hsieh, Kelly Mohr, and Darin Okerlund "Evaluation of an adaptive filtering algorithm for CT cardiac imaging with EKG modulated tube current", Proc. SPIE 5745, Medical Imaging 2005: Physics of Medical Imaging, (20 April 2005); https://doi.org/10.1117/12.595306

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