Wireless ultracompact handheld dual-mode ultrasound and photoacoustic imaging
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2025-03-20
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International society for optics and photonics (SIPE)
Abstract
Photoacoustic (PA) imaging is a hybrid imaging modality that combines optical contrast and ultrasound (US) resolution. Dual mode ultrasound + photoacoustic imaging system based on food and drug administration (FDA) approved clinical ultrasound platform can expedite clinical translation of photoacoustic imaging. However, developing dual model US+PA imaging system is challenging, as it requires access to raw radio frequency (RF) data from the ultrasound system. On top, making the US+PA system compact and inexpensive is even more challenging. Here, we report for the first time a wireless, ultra-compact US+PA imaging system based on FDA approved clinical ultrasound platform. The developed system can be completely controlled from iOS or android devices. We have used a pulsed laser diode (PLD) for the PA imaging part. The clinical ultrasound platform is from Clarius, which is routinely used in hospitals by the clinician to image breast, musculoskeletal, nerve, thyroid and so on. The high frequency linear array transducer L15 HD3 operates at the frequency of 5–15 MHz. The PLD (QD-Q1924-ILO-W, Quantel) is operated at the wavelength of 813 nm. The transducer and the PLD is synchronized using the trigger from the transducer. We characterize the performance of the system using hair and pencil lead phantoms. The lateral resolution is approximately 300 μm. In future we would integrate the wireless transducer with light emitting diodes (LEDs) which would reduce the weight and the cost of the PA system.
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This proceeding is published as Periyasamy, Vijitha, Avishek Das, and Manojit Pramanik. "Wireless ultracompact handheld dual-mode ultrasound and photoacoustic imaging." In Photons Plus Ultrasound: Imaging and Sensing 2025, vol. 13319, pp. 311-317. SPIE, 2025. doi: https://doi.org/10.1117/12.3049674.
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