All-optical ultrasound (AOUS) imaging, which uses light to both generate and detect ultrasound, is an emerging alternative to conventional electronic ultrasound imaging. To date, AOUS imaging has been performed using paradigms that either resulted in long acquisition times or employed bench-top imaging systems that were impractical for clinical use. In this work, we present a novel AOUS imaging paradigm where scanning optics are used to rapidly synthesise an imaging aperture. This paradigm enabled the first AOUS system with a flexible, handheld imaging probe, which represents a critical step towards clinical translation. This probe, which provides video-rate imaging and a real-time display, is demonstrated with phantoms and in vivo human tissue.

全光超声 (AOUS) 成像使用光来生成和检测超声，是传统电子超声成像的新兴替代方案。迄今为止，AOUS 成像已使用导致较长采集时间或采用对临床使用不切实际的台式成像系统的范例进行。在这项工作中，我们提出了一种新颖的 AOUS 成像范式，其中使用扫描光学系统快速合成成像孔径。这种范例使第一个 AOUS 系统具有灵活的手持式成像探头，这代表了临床转化的关键一步。该探针可提供视频速率成像和实时显示，并通过体模和体内人体组织进行演示。