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.