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JIŘÍK, R. STOTZKA, R. TAXT, T.
Original Title
Ultrasonic Attenuation Tomography Based on Log-Spectrum Analysis
Type
conference paper
Language
English
Original Abstract
The paper presents a new ultrasonic attenuation imaging method which might be used as a new imaging modality, targeted at breast cancer diagnostics. Two approaches based on ultrasonic imaging are combined together, namely the estimation of ultrasound attenuation coe cients from pulse{echo B{mode imaging data and an ultrasound computer tomography imaging technique. A recently published method for estimation of the ultrasound attenuation coe cient using the log{spectrum analysis is applied to radiofrequency signals acquired by an ultrasound computer tomography system to estimate images of the attenuation coe cients. The examined volume (e.g. female breast) is enclosed by several thousand ultrasound transducers. Radiofrequency signals from all transducers using all sending positions are recorded. Compared to the known ultrasound attenuation tomography methods, not only the directly transmitted signal, but also the re ected and scattered signals are processed here, i.e. substantially more information is used. The method is presented in its initial stage. The applied algorithm is derived using simplifying assumptions which will be relaxed in further research. However, even at this stage the resulting attenuation image is of higher quality than the standard attenuation imaging methods applied to the same data set.
Keywords
Ultrasound attenuation tomography, ultrasound imaging, ultrasound computed tomography, attenuation imaging
Authors
JIŘÍK, R.; STOTZKA, R.; TAXT, T.
RIV year
2005
Released
1. 1. 2005
Publisher
SPIE
Location
USA
ISBN
0-8194-5724-8
Book
Medical Imaging 2005, Ultrasonic Imaging and Signal Processing
Edition
Vol. 6
Edition number
No. 27
Pages from
305
Pages to
314
Pages count
10
BibTex
@inproceedings{BUT15153, author="Radovan {Jiřík} and Rainer {Stotzka} and Torfinn {Taxt}", title="Ultrasonic Attenuation Tomography Based on Log-Spectrum Analysis", booktitle="Medical Imaging 2005, Ultrasonic Imaging and Signal Processing", year="2005", series="Vol. 6", number="No. 27", pages="305--314", publisher="SPIE", address="USA", isbn="0-8194-5724-8" }