15 March 2016 Photoacoustic imaging of clinical metal needle by a LED light source integrated transducer
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Abstract
We have achieved penetration depth of 30mm by photoacoustic imaging system using LED light source integrated transducer to image a clinical metal needle inserted into a tissue mimicking phantom. We developed the transducer that integrated near-infrared LED array light source, which was connected to a photoacoustic imaging system which drove LED array light source and controlled photoacoustic data acquisition process. Conventionally solid-state laser has been used as the light source for photoacoustic imaging system. Because LED is diffused light source, laser safety glasses is not necessary, also inflexible fibers are not used to guide light close to a transducer, and we integrated LED light source inside the transducer, which became compact and practical size for conventional ultrasound equipment users. We made LED light source unit as detachable to the transducer easily, so wave-length of light can be selectable by changing the LED light source unit.
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Toshitaka Agano, Toshitaka Agano, Naoto Sato, Naoto Sato, Hitoshi Nakatsuka, Hitoshi Nakatsuka, Kazuo Kitagawa, Kazuo Kitagawa, Takamitsu Hanaoka, Takamitsu Hanaoka, Koji Morisono, Koji Morisono, Yusuke Shigeta, Yusuke Shigeta, Chizuyo Tanaka, Chizuyo Tanaka, "Photoacoustic imaging of clinical metal needle by a LED light source integrated transducer", Proc. SPIE 9708, Photons Plus Ultrasound: Imaging and Sensing 2016, 97083U (15 March 2016); doi: 10.1117/12.2212685; https://doi.org/10.1117/12.2212685
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