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首页> 外文会议>Diagnostic and Therapeutic Cardiovascular Interventions IV >Power output uniformity and power output capabilities of a guidewire-compatible cylindrical light-diffusing catheter
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Power output uniformity and power output capabilities of a guidewire-compatible cylindrical light-diffusing catheter

机译：导丝兼容的圆柱形光扩散导管的功率输出均匀性和功率输出能力

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Abstract: Cardiovascular Photodynamic Therapy requires the uniform application of laser energy over the length of an atherosclerotic lesion, thus ensuring equal treatment to all parts of the lesion. The total amount of laser energy delivered to the lesion also affects the results of the treatment. Uniform light distribution both radially and axially of a cylindrical diffuser during Photodynamic Therapy prevents miscalculated dosimetry and uneven treatment. Maximizing the amount of laser power delivered to the cylindrical diffuser tip (without inducing temperature elevation) minimizes the exposure time thus reducing the overall treatment time. Power output uniformity and power output capabilities are thus crucial factors in the design of a cardiovascular cylindrical diffuser. This paper will discuss the output characteristics and performance of six guidewire compatible cylindrical diffusers. Each diffuser consists of an array of fiber optics surrounding an inner guidewire lumen. This assembly is covered by an outer sheath. The fibers launch into an elastomer which contains a scattering medium. In this way a light diffusing tip is created. The total length of the fiber system is 3.0 meters. The total length of the difffuser tip is 2.0 cm. !8
机译：摘要：心血管光动力疗法需要在整个动脉粥样硬化病变的长度上均匀地施加激光能量，从而确保对病变的所有部位进行平等的治疗。传递到病变部位的激光能量总量也会影响治疗结果。在光动力疗法期间，圆柱形扩散器的径向和轴向均匀的光分布可以防止剂量计算错误和处理不均匀。使传递到圆柱形扩散器尖端的激光功率最大化（不引起温度升高）可最大程度地减少曝光时间，从而减少总体处理时间。因此，功率输出均匀性和功率输出能力是心血管圆柱形扩散器设计中的关键因素。本文将讨论六个导丝兼容的圆柱状扩散器的输出特性和性能。每个扩散器由围绕内部导丝管腔的光纤阵列组成。该组件被外部护套覆盖。纤维进入包含散射介质的弹性体中。以这种方式，产生了光扩散尖端。光纤系统的总长度为3.0米。扩散器尖端的总长度为2.0厘米。 ！8

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