Non-Invasive and Low-Cost Photoacoustic/Ultrasound Dual-Modal Imaging System for Carotid Plaque Imaging
Year: 2025
Type: conference-paper
Abstract: Carotid plaque rupture causes most ischemic strokes, yet current diagnostics focus on arterial stenosis, overlooking 80-90% of vulnerable plaques.This highlights the need for affordable, precise, and non-invasive imaging to assess plaque vulnerability.To address this, we developed a low-cost, dual Ultrasound/Photoacoustic system integrating a Vermon L7.5-MHz ultrasound probe, a 128-channel programmable phased array Ultrasound scanner (Dasel, Spain), and pannels of pulsed semiconductor lasers diodes of 5W emitting 100 ns pulses at 447 nm.Synchronization was managed via external pulse generators, with laser light delivered through optical fibers.Validation utilised phantoms of black nylon threads.GPU-accelerated delayand-sum beamforming was used for image recontruction.The system achieved 530 µm lateral and 360 µm axial resolution.This system offers a cost-effective, non-
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: G1028175657, G1175115578, G121809054, G1561925909, G1855990336, G2085528529, G2262748287, G2309174360, G2601397997, G2660406951, G2777921647, G300979063, G3480869486, G3518538256, G3528049860, G3681454997, G3925630030, G4042783231, G425668148, G430777504, G434337789, G4442677895, G4526231891, G5080475149, G5195188938, G5338730000, G5421974903, G7084143925, OCTOPUS: Oncological Concurrent Tomographic Optoacoustics, Pet and UltraSonography., G8347645112, G8920660035, G99296377
OpenAlex ID: W7117308331