Electromagnetic⁻Acoustic Sensing for Biomedical Applications

Area of Science:

• Physics
• Biomedical Engineering
• Acoustics

Background:

• Electromagnetic-acoustic (EMA) techniques are a class of hybrid methods.
• These techniques involve generating acoustic waves via electromagnetic field excitation.
• They encompass photoacoustic, thermoacoustic, and other related methods.

Purpose of the Study:

• To review the theories and applications of electromagnetic-acoustic (EMA) techniques.
• To explore various electromagnetic (EM) hybrid methods.
• To discuss the potential of EMA in pre-clinical research and medical practice.

Main Methods:

• Review of theories covering high-power EM field excitation (laser, microwave, magnetic field, X-ray) and acoustic wave generation.
• Description of EMA applications including structural imaging, blood flowmetry, thermometry, dosimetry, and sensing (hemoglobin oxygen saturation, glucose, pH, fingerprints).
• Inclusion of related EM-acoustic methods like magnetoacoustic and magnetomotive ultrasound/photoacoustic.

Main Results:

• EMA techniques offer a versatile platform for various applications.
• The reviewed methods demonstrate applicability in imaging, sensing, and dosimetry.
• Related EM-acoustic techniques expand the scope of these hybrid approaches.

Conclusions:

• Electromagnetic-acoustic (EMA) techniques show significant promise for both pre-clinical research and clinical applications.
• The diverse applications underscore the versatility and potential of EMA.
• Further development of EMA methods could lead to advancements in medical diagnostics and therapies.