کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10691283 | 1019591 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cavitation-Enhanced Back Projection for Acoustic Rib Detection and Attenuation Mapping
ترجمه فارسی عنوان
کاویتاسیون پیشرفته پیش بینی برای تشخیص غواصی آکوستیک و نقشه برداری تضعیف
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
چکیده انگلیسی
High-intensity focused ultrasound allows for minimally invasive, highly localized cancer therapies that can complement surgical procedures or chemotherapy. For high-intensity focused ultrasound interventions in the upper abdomen, the thoracic cage obstructs and aberrates the ultrasonic beam, causing undesired heating of healthy tissue. When a phased array therapeutic transducer is used, such complications can be minimized by applying an apodization law based on analysis of beam path obstructions. In this work, a rib detection method based on cavitation-enhanced ultrasonic reflections is introduced and validated on a porcine tissue sample containing ribs. Apodization laws obtained for different transducer positions were approximately 90% similar to those obtained using image analysis. Additionally, the proposed method provides information on attenuation between transducer elements and the focus. This principle was confirmed experimentally on a polymer phantom. The proposed methods could, in principle, be implemented in real time for determination of the optimal shot position in intercostal high-intensity focused ultrasound therapy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 41, Issue 6, June 2015, Pages 1726-1736
Journal: Ultrasound in Medicine & Biology - Volume 41, Issue 6, June 2015, Pages 1726-1736
نویسندگان
Pascal Ramaekers, Martijn de Greef, Chrit T.W. Moonen, Mario G. Ries,