SCATTERING OF ULTRASOUND FROM SKELETAL-MUSCLE TISSUE
SCATTERING OF ULTRASOUND FROM SKELETAL-MUSCLE TISSUE
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DOI：
10.1109/58.251284
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发表时间：
1993-07-01
影响因子：
3.6
通讯作者：
SHUNG, KK
中科院分区：
文献类型：
--
作者：
HETE, B;SHUNG, KK
本文旨在探讨骨骼肌组织对超声散射的机理。这是在我们的实验室中观察到的一个有趣的现象，即从鸟类骨骼肌的散射功率的变化与被动拉伸一致。测量骨骼肌样品的超声散射，因为它们以原始长度的10%至40%的增量被动拉伸。用来自换能器的超声波束照射样品，该换能器正交取向并且与肌肉样品的长轴的法线成20度。结果发现，积分背向散射显着增加的应变范围内的正交方向，但它改变后的初始拉伸时，方向为20度。据推测，这一现象可能是由肌纤维周围的肌内膜胶原纤维的重新定向引起的。
The purpose of this paper was to explore the mechanisms which are responsible for the scattering of ultrasound from skeletal muscle tissue. It was undertaken in response to an interesting phenomenon observed in our laboratory whereby scattering power from avian skeletal muscle changes in concordance with passive stretch. Ultrasonic scattering from skeletal muscle samples was measured as they were stretched passively in increments of 10% of original length up to 40%. The samples were illuminated with an ultrasound beam from a transducer which was oriented orthogonally and at 20-degrees from the normal to the long axis of the muscle sample. It was found that the integrated backscatter increased significantly over the strain range for the orthogonal orientation but it changed very little after the initial stretch when the orientation was 20-degrees. It is postulated that this phenomenon may be caused by reorientation of the endomysial collagen fibers surrounding each muscle fiber.