کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10692158 | 1019644 | 2012 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The Speed of Sound and Attenuation of an IEC Agar-Based Tissue-Mimicking Material for High Frequency Ultrasound Applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
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چکیده انگلیسی
This study characterized the acoustic properties of an International Electromechanical Commission (IEC) agar-based tissue mimicking material (TMM) at ultrasound frequencies in the range 10-47 MHz. A broadband reflection substitution technique was employed using two independent systems at 21°C ± 1°C. Using a commercially available preclinical ultrasound scanner and a scanning acoustic macroscope, the measured speeds of sound were 1547.4 ± 1.4 mâsâ1 and 1548.0 ± 6.1 mâsâ1, respectively, and were approximately constant over the frequency range. The measured attenuation (dBâcmâ1) was found to vary with frequency f (MHz) as 0.40f + 0.0076f2. Using this polynomial equation and extrapolating to lower frequencies give values comparable to those published at lower frequencies and can estimate the attenuation of this TMM in the frequency range up to 47 MHz. This characterisation enhances understanding in the use of this TMM as a tissue equivalent material for high frequency ultrasound applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 38, Issue 7, July 2012, Pages 1262-1270
Journal: Ultrasound in Medicine & Biology - Volume 38, Issue 7, July 2012, Pages 1262-1270
نویسندگان
Chao Sun, Stephen D. Pye, Jacinta E. Browne, Anna Janeczko, Bill Ellis, Mairead B. Butler, Vassilis Sboros, Adrian J.W. Thomson, Mark P. Brewin, Charles H. Earnshaw, Carmel M. Moran,