BIOMAT Database Logo BIOMAT Database Logo

Enhancement of photoacoustic image quality by sound speed correction: ex vivo evaluation. 2012

Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Department of Electronic Engineering, Sogang University, Seoul, South Korea.

Real-time photoacoustic (PA) imaging involves beamforming methods using an assumed fixed sound speed, typically 1540 m/s in soft tissue. This leads to degradation of PA image quality because the true sound speed changes as PA signal propagates through different types of soft tissues: the range from 1450 m/s to 1600 m/s. This paper proposes a new method for estimating an optimal sound speed to enhance the cross-sectional PA image quality. The optimal sound speed is determined when coherent factor with the sound speed is maximized. The proposed method was validated through simulation and ex vivo experiments with microcalcification-contained breast cancer specimen. The experimental results demonstrated that the best lateral resolution of PA images of microcalcifications can be achieved when the optimal sound speed is utilized.

UI MeSH Term Description Entries
D007089 Image Enhancement Improvement of the quality of a picture by various techniques, including computer processing, digital filtering, echocardiographic techniques, light and ultrastructural MICROSCOPY, fluorescence spectrometry and microscopy, scintigraphy, and in vitro image processing at the molecular level. Image Quality Enhancement,Enhancement, Image,Enhancement, Image Quality,Enhancements, Image,Enhancements, Image Quality,Image Enhancements,Image Quality Enhancements,Quality Enhancement, Image,Quality Enhancements, Image
D001941 Breast Diseases Pathological processes of the BREAST. Endocrine Breast Diseases,Breast Disease,Breast Disease, Endocrine,Breast Diseases, Endocrine,Disease, Breast,Disease, Endocrine Breast,Diseases, Breast,Diseases, Endocrine Breast,Endocrine Breast Disease
D002114 Calcinosis Pathologic deposition of calcium salts in tissues. Calcification, Pathologic,Calcinosis, Tumoral,Microcalcification,Microcalcinosis,Pathologic Calcification,Calcinoses,Calcinoses, Tumoral,Microcalcifications,Microcalcinoses,Tumoral Calcinoses,Tumoral Calcinosis
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000465 Algorithms A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task. Algorithm
D016217 Ultrasonography, Mammary Use of ultrasound for imaging the breast. The most frequent application is the diagnosis of neoplasms of the female breast. Mammography, Ultrasonic,Breast Ultrasonography,Mammary Ultrasonography,Mammography, Ultrasound,Ultrasonic Mammography,Ultrasonography, Breast,Ultrasound Mammography,Breast Ultrasonographies,Mammary Ultrasonographies,Mammographies, Ultrasonic,Mammographies, Ultrasound,Ultrasonic Mammographies,Ultrasonographies, Breast,Ultrasonographies, Mammary,Ultrasound Mammographies
D054459 Elasticity Imaging Techniques Non-invasive imaging methods based on the mechanical response of an object to a vibrational or impulsive force. It is used for determining the viscoelastic properties of tissue, and thereby differentiating soft from hard inclusions in tissue such as microcalcifications, and some cancer lesions. Most techniques use ultrasound to create the images - eliciting the response with an ultrasonic radiation force and/or recording displacements of the tissue by Doppler ultrasonography. ARFI Imaging,Acoustic Radiation Force Impulse Imaging,Elastograms,Elastography,Magnetic Resonance Elastography,Sonoelastography,Tissue Elasticity Imaging,Vibro-Acoustography,ARFI Imagings,Elasticity Imaging Technique,Elasticity Imaging, Tissue,Elasticity Imagings, Tissue,Elastogram,Elastographies,Elastographies, Magnetic Resonance,Elastography, Magnetic Resonance,Imaging Technique, Elasticity,Imaging Techniques, Elasticity,Imaging, ARFI,Imaging, Tissue Elasticity,Imagings, ARFI,Imagings, Tissue Elasticity,Magnetic Resonance Elastographies,Resonance Elastographies, Magnetic,Resonance Elastography, Magnetic,Sonoelastographies,Technique, Elasticity Imaging,Techniques, Elasticity Imaging,Tissue Elasticity Imagings,Vibro Acoustography,Vibro-Acoustographies
D061088 Photoacoustic Techniques Investigative and diagnostic methods and procedures based on the photoacoustic effect, which is the generation of SOUND WAVES from the absorption of ELECTROMAGNETIC RADIATION. Optoacoustic Techniques,Optoacoustic Technologies,Photoacoustic Technologies,Optoacoustic Technique,Optoacoustic Technology,Photoacoustic Technique,Photoacoustic Technology,Technique, Optoacoustic,Technique, Photoacoustic,Techniques, Optoacoustic,Techniques, Photoacoustic,Technologies, Optoacoustic,Technologies, Photoacoustic,Technology, Optoacoustic,Technology, Photoacoustic

Related Publications

Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
In vivo enhancement of ultrasonic image luminance by aqueous solutions with high speed of sound.
October 1981, Ultrasonic imaging,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Speed of sound correction and quality control.
September 2012, Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Automatic sound speed selection in photoacoustic image reconstruction using an autofocus approach.
September 2011, Journal of biomedical optics,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Speed of sound imaging: improved image quality in breast sonography.
September 2009, Ultrasound quarterly,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Reflection mode photoacoustic measurement of speed of sound.
March 2007, Optics express,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
An image reconstruction method for endoscopic photoacoustic tomography in tissues with heterogeneous sound speed.
July 2019, Computers in biology and medicine,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Speed of Sound and Attenuation Temperature Dependence of Bovine Brain: Ex Vivo Study.
June 2020, Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Speed-of-sound compensated photoacoustic tomography for accurate imaging.
December 2012, Medical physics,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Sound speed profile characterization by the image source method.
October 2010, The Journal of the Acoustical Society of America,
Changhan Yoon, and Jeeun Kang, and Seunghee Han, and Yangmo Yoo, and Tai-Kyong Song, and Jin Ho Chang
Image reconstruction in photoacoustic tomography with variable speed of sound using a higher-order geometrical acoustics approximation.
January 2010, Journal of biomedical optics,
Copied contents to your clipboard!