title: Acoustic-actuated optical coherence angiography.
abstract: Optical coherence tomography (OCT) angiography requires high sensitivity and image penetration for detailed microvascular monitoring. Unfortunately, no effective contrast-medium-enhanced scheme is currently available for imaging improvement. We here propose the simultaneous use of gas-filled microbubbles (MBs) and acoustic actuation to enhance the imaging contrast of OCT angiography. OCT-synchronized acoustic actuation was applied in the presence of MBs, and different moving object tracking angiographic algorithms were tested in in vitro tubing and in vivo mouse experiments. This scheme significantly enhanced the OCT angiography performance, including its sensitivity and penetration, and should advance the utilization of OCT as an effective microvascular diagnostic tool.
authors.forename: Meng-Tsan
authors.initials: MT
authors.lastname: Tsai
authors.forename: Jia-Wei
authors.initials: JW
authors.lastname: Zhang
authors.forename: Yu-Hsuan
authors.initials: YH
authors.lastname: Liu
authors.forename: Chih-Kuang
authors.initials: CK
authors.lastname: Yeh
authors.forename: Kuo-Chen
authors.initials: KC
authors.lastname: Wei
authors.forename: Hao-Li
authors.initials: HL
authors.lastname: Liu