Integrated intravascular ultrasound and photoacoustic imaging scan head.
The combination of intravascular ultrasound and intravascular photoacoustic imaging has been proposed for improving the diagnosis of arterial diseases. We describe a novel scan-head design for implementing such multimodality imaging. The proposed device has the potential to achieve a sufficiently small size for clinical intravascular applications. The design aims for efficient image data acquisition for facilitating real-time three-dimensional imaging and reducing the required laser pulse repetition frequency. The integrated scan head consists of a single-element, ring-shaped transducer for sideward ultrasound transmission, a multimode fiber with a cone-shaped mirror for optical illumination, and a single polymer microring with mechanical scanning. The phantom imaging and some experimental results are presented. A microring array can be realized in the future to achieve high-frame-rate intravascular multimodality imaging.
Hsieh
Bao-Yu
BY
Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.
Chen
Sung-Liang
SL
Ling
Tao
T
Guo
L Jay
LJ
Li
Pai-Chi
PC
D000162:Acoustics; D057054:Molecular Imaging / Q000295:instrumentation / Q000379:methods*; D011137:Polystyrenes; D018511:Systems Integration; D018084:Ultrasonography, Interventional / Q000295:instrumentation / Q000379:methods*
D011137:Polystyrenes