Wide-band acoustic pulse detection in opto-acoustic tomography system

Wide-band acoustic pulse detection in opto-acoustic tomography system

The optoacoustic tomography (OAT) utilizes acoustic waves induced by short laser pulses in tumor with preferential light absorption. Waveform of the opto-acoustic signal detected by a wide-band transducer array provides information about shape of tumor and its specificity. The 32-element acoustic ar...

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Bibliographische Detailangaben
Hauptverfasser: Andreev, V.G., Oraevsky, A.A., Karabutov, A.A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Absorption
Acoustic arrays
Acoustic pulses
Acoustic signal detection
Acoustic transducers
Acoustic waves
Laser pulses
Light absorption
Medical imaging
Neoplasms
Optical pulses
Optical resolving power
Photoacoustic effect
Plastic films
Signal detection
Tomography
Wideband
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Beschreibung
Zusammenfassung:The optoacoustic tomography (OAT) utilizes acoustic waves induced by short laser pulses in tumor with preferential light absorption. Waveform of the opto-acoustic signal detected by a wide-band transducer array provides information about shape of tumor and its specificity. The 32-element acoustic array was employed in clinical prototype of laser optoacoustic imaging system (LOIS). Piezopolymer PVDF film was used for the array transducer fabrication. Sensitivity of the array and its transient directivity pattern are discussed in this paper. The array performance was tested in experiments with phantoms.
ISSN:1051-0117
DOI:10.1109/ULTSYM.2000.921539