微波加热耦合光声雷达用于组织诊断成像。

Microwave-heating-coupled photoacoustic radar for tissue diagnostic imaging.

出版信息

J Biomed Opt. 2016 Jun 1;21(6):66018. doi: 10.1117/1.JBO.21.6.066018.

DOI:10.1117/1.JBO.21.6.066018

Abstract

An investigation of microwave (MW) heating effects on biotissue for enhancing photoacoustic radar (PAR) signals was conducted. Localized tissue heating generated by MWs was used to improve PAR imaging depth and signal-to-noise ratio (SNR). Elevated temperatures were measured with thermocouples in ex vivo bovine muscle. The measured temperature rise on the heated spot surface by MWs was in agreement with theoretical predictions. The study showed localized MW heating can increase the photoacoustic imaging depth by 11%, and the SNR by 5% in ex vivo bovine muscle.

摘要

研究了微波（MW）加热对生物组织的影响，以增强光声雷达（PAR）信号。MW 产生的局部组织加热用于提高 PAR 成像深度和信噪比（SNR）。在离体牛肌肉中使用热电偶测量升高的温度。MW 加热在加热点表面的测量温升与理论预测相符。研究表明，MW 局部加热可以使离体牛肌肉的光声成像深度增加 11%，SNR 增加 5%。