N2 - The pathological states of biological tissue are often resulted in attenuation changes. Thus, information about attenuating properties of tissue is valuable for the physician and could be useful in ultrasonic diagnosis. We are currently developing a technique for parametric imaging of attenuation and we intend to apply it for in vivo characterization of tissue. The attenuation estimation method based on the echoes mean frequency changes due to tissue attenuation dispersion, is presented. The Doppler IQ technique was adopted to estimate the mean frequency directly from the raw RF data. The Singular Spectrum Analysis technique was used for the extraction of mean frequency trends. These trends were converted into attenuation distribution and finally the parametric images were computed. In order to reduce variation of attenuation estimates the spatial compounding method was applied. Operation and accuracy of attenuation extracting procedure was verified by calculating the attenuation coefficient distribution using the data from the tissue phantom (DFS, Denmark) with uniform echogenicity while attenuation coefficient underwent variation. L1 - http://www.czasopisma.pan.pl/Content/107572/PDF/105.pdf L2 - http://www.czasopisma.pan.pl/Content/107572 PY - 2010 IS - No 4 EP - 651 DO - 10.2478/v10168-010-0048-7 KW - ultrasound attenuation estimation KW - spatial compounding KW - parametric imaging A1 - Nowicki, Andrzej A1 - Klimonda, Ziemowit A1 - Litniewski, Jerzy PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 35 DA - 2010 T1 - Tissue Attenuation Estimation from Backscattered Ultrasound Using Spatial Compounding Technique - Preliminary Results SP - 643 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/107572 T2 - Archives of Acoustics