Photoacoustic Imaging of Interventional Devices for Guiding Minimally Invasive Medical Procedures

Abstract

AbstractDespite rapid advancements in medical technology, accurate identification and assessment of abnormalities and precise visualisation of interventional devices are imperative for successful outcomes in minimally invasive medical procedures. In the past few decades, photoacoustic (PA) imaging has emerged as a promising intraoperative imaging modality for surgical guidance, offering rich optical absorption contrast derived from intrinsic tissue chromophores, extrinsic contrast agents, and interventional devices. This chapter reviews recent developments in PA imaging for guiding minimally invasive medical procedures, with a particular focus on its capability of visualising interventional devices including clinical metallic needles, catheters, and metal implants, and signal and image processing methods for enhanced visualisation.