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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >An integrated compliant balloon ultrasound catheter for intravascular strain imaging
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An integrated compliant balloon ultrasound catheter for intravascular strain imaging

机译：用于血管内应变成像的一体化顺应性球囊超声导管

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摘要

An integrated compliant balloon ultrasound catheter was developed to allow greater deformations in strain imaging with intravascular ultrasound. A 64-element circumferential array was placed inside a compliant silicone balloon catheter to capture real-time, phase-sensitive radio frequency (RF) data during deformation experiments. Strains over 40% could be applied to normal arterial wall tissue with intracatheter pressures as low as 200 kPa (2 atm). Strain images of a hard-soft rubber phantom, thrombus, and fibrotic plaque were produced using the integrated balloon ultrasound catheter. Results show that this catheter can apply large deformations at low pressures and image various vascular pathologies ex vivo. Potentially, it can serve as a multifunctional, intravascular therapeutic device to guide angioplasty and stent deployment.
机译：开发了集成的顺应性球囊超声导管，以允许在血管内超声的应变成像中产生更大的变形。将64个元素的周向阵列放置在顺应性硅胶球囊导管内，以在变形实验过程中捕获实时的相敏射频（RF）数据。超过40％的菌株可用于导管内压力低至200 kPa（2 atm）的正常动脉壁组织。使用集成的气囊超声导管产生了硬软橡胶体模，血栓和纤维化斑块的应变图像。结果表明，该导管可在低压下施加较大的变形，并能对离体的各种血管病变进行成像。潜在地，它可以用作引导血管成形术和支架部署的多功能血管内治疗装置。

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