Quantitative measurement of acoustic radiation force on a thin catheter for use in endovascular therapy
Quantitative measurement of acoustic radiation force on a thin catheter for use in endovascular therapy
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血管内治疗用细导管上声辐射力的定量测量
DOI：
10.7567/jjap.53.07kc09
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发表时间：
2014
影响因子：
1.5
通讯作者：
K. Masuda
中科院分区：
文献类型：
--
作者：
T. Mochizuki;Nobuhiro Tsurui;N. Hosaka;R. Koda;K. Masuda
在这项研究中，声辐射力的定量测量作用在一个薄的导管已经进行了开发微泡血管内治疗。首先，阐明了作用在由全氟烷氧基（PFA）共聚物制成的薄导管上的力可以在有效范围内从悬臂方程获得，其中导管的位移除以导管长度的立方小于1.0 × 10 - 5 mm-2。接下来，基于悬臂梁理论，在连续超声波（频率2 MHz，声压300 kPa）照射下，测量作用在导管（直径400 µm，材料PFA）上的力为24 µN。此外，观察到力取决于超声频率。最后，我们得出结论，力是在实际条件下获得的，用于实现血管内治疗，并建议使用超声的细导管导航是完全有前途的。
In this study, the quantitative measurement of acoustic radiation force acting on a thin catheter has been carried out to develop endovascular therapy with microbubbles. First, it is elucidated that the force acting on a thin catheter made of perfluoroalkoxy (PFA) copolymer can be obtained from the cantilever equation in the effective range, where the displacement of the catheter divided by the cube of the length of the catheter is less than 1.0 × 10−5 mm−2. Next, on the basis of the cantilever theory, the force acting on the catheter (diameter 400 µm, material PFA) is measured to be 24 µN under the continuous ultrasound (frequency 2 MHz, sound pressure 300 kPa) irradiation. Furthermore, it is observed that the force depends on the ultrasound frequency. Finally, we conclude that the force is obtained under practical conditions for the realization of endovascular therapy and suggest that thin catheter navigation using ultrasound is fully promising.
产生局部声辐射力来约束微胶囊的流动方向
影响因子：
1.5
作者：
Kohji Masuda;ほか
通讯作者：
ほか