Overview
Photoacoustic imaging uses pulsed light to generate ultrasound signals from tissue chromophores enabling optical contrast at ultrasound depths.
Technique
Laser excitation and ultrasound detection combine to map hemoglobin oxygenation and targeted contrast agents.
Clinical Uses
Research and emerging clinical applications in oncology vascular imaging and sentinel node mapping.
Limitations and Safety
Limited clinical availability and need for specialized equipment. Regulatory pathways are evolving.