How much image noise can be added in cardiac x-ray imaging without loss in perceived image quality?

Amber J. Gislason-Lee; Asli Kumcu; Stephen M. Kengyelics; Laura A. Rhodes; Andrew G. Davies

doi:10.1117/12.2082788

16 March 2015 How much image noise can be added in cardiac x-ray imaging without loss in perceived image quality?

Amber J. Gislason-Lee, Asli Kumcu, Stephen M. Kengyelics, Laura A. Rhodes, Andrew G. Davies

Proceedings Volume 9399, Image Processing: Algorithms and Systems XIII; 93990L (2015) https://doi.org/10.1117/12.2082788
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

Dynamic X-ray imaging systems are used for interventional cardiac procedures to treat coronary heart disease. X-ray settings are controlled automatically by specially-designed X-ray dose control mechanisms whose role is to ensure an adequate level of image quality is maintained with an acceptable radiation dose to the patient. Current commonplace dose control designs quantify image quality by performing a simple technical measurement directly from the image. However, the utility of cardiac X-ray images is in their interpretation by a cardiologist during an interventional procedure, rather than in a technical measurement. With the long term goal of devising a clinically-relevant image quality metric for an intelligent dose control system, we aim to investigate the relationship of image noise with clinical professionals’ perception of dynamic image sequences.

Computer-generated noise was added, in incremental amounts, to angiograms of five different patients selected to represent the range of adult cardiac patient sizes. A two alternative forced choice staircase experiment was used to determine the amount of noise which can be added to a patient image sequences without changing image quality as perceived by clinical professionals. Twenty-five viewing sessions (five for each patient) were completed by thirteen observers. Results demonstrated scope to increase the noise of cardiac X-ray images by up to 21% ± 8% before it is noticeable by clinical professionals. This indicates a potential for 21% radiation dose reduction since X-ray image noise and radiation dose are directly related; this would be beneficial to both patients and personnel.

Citation Download Citation

Amber J. Gislason-Lee, Asli Kumcu, Stephen M. Kengyelics, Laura A. Rhodes, and Andrew G. Davies "How much image noise can be added in cardiac x-ray imaging without loss in perceived image quality?", Proc. SPIE 9399, Image Processing: Algorithms and Systems XIII, 93990L (16 March 2015); https://doi.org/10.1117/12.2082788

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Image quality

X-ray imaging

X-rays

Imaging systems

Image enhancement

Angiography

Heart

Show All Keywords

Keywords/Phrases

Search In:

Publication Years