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首页> 外文期刊>Optics Letters >Preclinical photoacoustic imaging endoscope based on acousto-optic coaxial system using ring transducer array
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Preclinical photoacoustic imaging endoscope based on acousto-optic coaxial system using ring transducer array

机译:基于环形振子阵列的声光同轴系统的临床前光声成像内窥镜

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摘要

We developed and fabricated a preclinical photoacoustic imaging endoscope (PAIE) with an acousto-optic coaxial structure for cavity imaging that integrates a Plexiglas tube, an optical fiber, a ring transducer array, a taper reflector, and an ultrasonic coupling medium. A photoacoustic image for a section of pig colorectal tissue embedded in a transparent gelatin phantom was reconstructed. Furthermore, human colorectal cancer and normal colorectal tissue were imaged ex vivo with a contrast ratio of approx2.3. Experimental results demonstrate that the PAIE has potential for detecting colorectal cancer in clinical use.
机译:我们开发并制造了具有声光同轴结构的临床前光声成像内窥镜(PAIE),用于腔体成像,该结构集成了有机玻璃管,光纤,环形传感器阵列,锥形反射器和超声耦合介质。重建了透明明胶体模中嵌入的猪结直肠组织切片的光声图像。此外,人类结直肠癌和正常结直肠组织离体成像,对比度约为2.3。实验结果表明,PAIE在临床上具有检测结直肠癌的潜力。

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