کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5486020 | 1399445 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Metrological Validation of a Measurement Procedure for the Characterization of a Biological Ultrasound Tissue-Mimicking Material
ترجمه فارسی عنوان
اعتبارسنجی مترولوژیکی یک روش اندازه گیری برای مشخص کردن مواد بافت سونوگرافی بیولوژیکی
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کلمات کلیدی
سونوگرافی، مواد بافت موی سر، سرعت صوت، ضریب تضعیف، اعتبار سنجی، مترولوژی، عدم قطعیت اندازه گیری،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
چکیده انگلیسی
The speed of sound and attenuation are important properties for characterizing reference materials such as biological phantoms used in ultrasound applications. There are many publications on the manufacture of ultrasonic phantoms and the characterization of their properties. However, few studies have applied the principles of metrology, such as the expression of the uncertainty of measurement. The objective of this study is to validate a method for characterizing the speed of sound and the attenuation coefficient of tissue-mimicking material (TMM) based on the expression of the measurement of uncertainty. Six 60-mm-diameter TMMs were fabricated, three 10Â mm thick and three 20Â mm thick. The experimental setup comprised two ultrasonic transducers, acting as transmitter or receiver depending on the stage of the measurement protocol, both with a nominal center frequency of 5Â MHz and an element diameter of 12.7Â mm. A sine burst of 20 cycles and 20-V peak-to-peak amplitude at 5Â MHz excited the transmitter transducer, producing a maximum pressure of 0.06Â MPa. The measurement method was based on the through-transmission substitution immersion technique. The speed of sound measurement system was validated using a calibrated stainless-steel cylinder as reference material, and normalized errors were <0.8. The attenuation coefficient measurement method was validated using replicated measurements under repeatability conditions. The normalized error between the two measurement sets was <1. The proposed uncertainty models for the measurements of the speed of sound and the attenuation coefficient can help other laboratories develop their own uncertainty models. These validated measurement methods can be used to certify a TMM as a reference material for biotechnological applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 43, Issue 1, January 2017, Pages 323-331
Journal: Ultrasound in Medicine & Biology - Volume 43, Issue 1, January 2017, Pages 323-331
نویسندگان
Taynara Q. Santos, André V. Alvarenga, Débora P. Oliveira, Rodrigo P.B. Costa-Felix,