کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2782462 1153351 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An in vitro study of ultrasound signal loss across simple fractures in cortical bone mimics and bovine cortical bone samples
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شناسی تکاملی
پیش نمایش صفحه اول مقاله
An in vitro study of ultrasound signal loss across simple fractures in cortical bone mimics and bovine cortical bone samples
چکیده انگلیسی

Measurements have been performed on Sawbones® and bovine cortical bone samples at 200 kHz using an axial transmission technique to investigate the factors that determine how ultrasonic waves propagate across a simulated fracture. The peak amplitude of the first arrival signal (FAS) was studied. Results taken from intact specimens were compared with those produced when a simple transverse fracture was introduced. These fracture simulation experiments were found to be consistent with Finite Difference modelling of the experimental conditions. The peak amplitude showed a characteristic variation across the fracture caused by interference between reradiated and scattered/diffracted waves at the fracture site and a net Fracture Transmission Loss (FTL). For small fracture gaps, the change in amplitude was sensitive to the presence of the fracture. This sensitivity suggests that this parameter could be a good quantitative indicator for the fracture healing process assuming the relative change in this parameter brought about by healing is measurable.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bone - Volume 40, Issue 3, March 2007, Pages 656–661
نویسندگان
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