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Panoramic epifluorescent visualization of cardiac action potential activity

机译:心脏动作电位活动的全景落射荧光可视化

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Abstract: Optical imaging of transmembrane potentials in cardiac tissue is a rapidly growing technique in cardiac electrophysiology. Current studies typically use a monocular imaging setup, thus limiting investigation to a restricted region of tissue. However, studies of large-scale wavefront dynamics, especially those during fibrillation and defibrillation, require visualization of the entire epicardial surface. We have developed a panoramic cardiac visualization system using mirrors which performs two tasks: (1) reconstruction of the surface geometry of the heart, and 2) representation of the panoramic fluorescence information as a texture mapping onto the geometry that was previously created. This system permits measurements of epicardial electrodynamics over a geometrically realistic representation of the actual heart being studied. !11
机译:摘要:心脏组织中跨膜电位的光学成像是心脏电生理学中一项快速发展的技术。当前的研究通常使用单眼成像装置,因此将研究限于组织的受限区域。然而,大规模波前动力学的研究,尤其是在原纤和除颤过程中,需要可视化整个心外膜表面。我们已经开发了使用镜子的全景心脏可视化系统,该系统执行两项任务:(1)重建心脏的表面几何形状,以及2)将全景荧光信息表示为纹理映射到先前创建的几何形状。该系统允许在所研究的实际心脏的几何逼真的表示上测量心外膜电动力学。 !11

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