Improved detectability of hypoechoic regions with short-lag spatial coherence imaging: experimental validation

Marko Jakovljevic; Jeremy J. Dahl; Gregg E. Trahey

doi:10.1117/12.878348

25 March 2011 Improved detectability of hypoechoic regions with short-lag spatial coherence imaging: experimental validation

Marko Jakovljevic, Jeremy J. Dahl, Gregg E. Trahey

Author Affiliations +

Proceedings Volume 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy; 79681E (2011) https://doi.org/10.1117/12.878348
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

Abstract

The ability of an ultrasound system to differentiate signals in the presence of clutter is of key clinical importance. There are several sources of clutter but assessing their relative importance and developing methods of reducing them remain areas of active research. We have developed a novel method called short-lag-spatial-coherence (SLSC) imaging that allows formation of high quality ultrasound images in the presence of clutter. The method is based on the van-Cittert- Zernike theorem. Specifically, the images are formed by utilizing the spatial coherence of the pressure field at the surface of the transducer. We compare matched SLSC and B-mode images beamformed from simulated data and data acquired on human liver in vivo. SLSC images have higher contrast and CNR then their B-mode counterparts for all acoustic-noise conditions (low, medium, and high noise). Nevertheless, SLSC brings highest improvement of target detectability in the medium noise environment. When the received signal is saturated with noise, both Bmode and SLSC produce low-quality images.

Citation Download Citation

Marko Jakovljevic, Jeremy J. Dahl, and Gregg E. Trahey "Improved detectability of hypoechoic regions with short-lag spatial coherence imaging: experimental validation", Proc. SPIE 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy, 79681E (25 March 2011); https://doi.org/10.1117/12.878348

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