ArticleBiomedical optics express2025
Performance characterization of light-emitting diode array-based photoacoustic computed tomography (LED-PACT).
Article in Biomedical optics express, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Optimization of light source parameters for photoacoustic imaging: trade-offs, technologies, and clinical considerations.JPhys photonics · 2026Review
- Introduction to the feature issue Photoacoustic Imaging and Sensing: Beyond Fundamentals to Translation.Biomedical optics express · 2026Article
- Near-infrared-II pulsed laser diode array for spectral photoacoustic imaging of deep tissue oxygenation.Biomedical optics express · 2025Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We propose a cost-effective light emitting diode based photoacoustic computed tomography (LED-PACT) system integrating a custom nanosecond pulsed LED array with a single-element ultrasound transducer for circular scanning. An LED array consisting of 37 LEDs, driven by a homemade nanosecond pulsed current source (NSPCS) driver, provided 100 ns optical pulse width (850 nm wavelength), 0.18 mJ per pulse energy (8 kHz pulse repetition rate). We compared the performance of the LED-PACT in terms of imaging depth, resolution, signal-to-noise ratio (SNR) against pulsed laser diode (PLD) based PACT. Phantom and tissue studies demonstrate our LED-PACT's competitive imaging performance, including a SNR of 22.4 dB (with 2.25 MHz UST), comparable spatial resolution of 178 µm (with 5 MHz UST) and a practical imaging depth of 20 mm in chicken tissue, despite operating at significantly lower optical energies than PLD (0.18 mJ vs 1.88 mJ). With a fraction of cost (<
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Registered trials
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