کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1761601 1019655 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Newtonian Viscous Effects in Ultrasonic Emboli Removal from Blood
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
Newtonian Viscous Effects in Ultrasonic Emboli Removal from Blood
چکیده انگلیسی
We have modeled the removal of emboli from cardiopulmonary bypass circuits via acoustic radiation force. Unless removed, emboli can result in cognitive deficit for those undergoing heart surgery with the use of extracorporeal circuits. There are a variety of mathematical formulations in the literature describing acoustic radiation force, but a lingering question that remains is how important viscosity of the blood and/or embolus is to the process. We implemented both inviscid and viscous models for acoustic radiation force on a sphere immersed in a fluid. We found that for this specific application, the inviscid model seems to be sufficient for predicting acoustic force upon emboli when compared with the chosen viscous model. Thus, the much simpler inviscid model could be used to optimize experimental techniques for ultrasonic emboli removal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 37, Issue 8, August 2011, Pages 1340-1349
نویسندگان
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