光声成像(PAI)是基于光声效应的一种医学成像模式。随着激光技术、微弱信号探测技术及图像处理技术的发展,PAI已经发展成为一种新型的无损成像技术,其具有较大的穿透深度、较高的图像对比度和分辨率。文章对生物医学PAI进行了综述,首先介绍了PAI的基本机制,并阐述了PAI的多个优点,如高特异性和无损性等,之后介绍了PAI的国内外的研究进展,阐述中国PAI可能在三个方面首先取得可喜进展。 Photoacoustic imaging (PAI) is a medical imaging model based on photoacoustic effects. With the development of laser technology, weak signal detection technology and image processing technology, PAI has developed into a new type of nondestructive imaging technology with larger penetration depth, higher image contrast and resolution. The article reviewed the biomedical PAI, first introduced the basic mechanism of PAI, and described the advantages of PAI, such as high specificity and non-destructive, and then introduced the research progress of PAI at home and abroad, and explained the possibility of PAI in China First of all, we have made gratifying progress in three aspects.