A Broadband Polyvinylidene Difluoride-Based Hydrophone with Integrated Readout Circuit for Intravascular Photoacoustic Imaging

Abstract Intravascular photoacoustic (IVPA) imaging can visualize the coronary atherosclerotic plaque composition on the basis of the optical absorption contrast. Most of the photoacoustic (PA) energy of human coronary plaque lipids was found to lie in the frequency band between 2 and 15 MHz requiri...

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Veröffentlicht in:	Ultrasound in medicine & biology 2016-05, Vol.42 (5), p.1239-1243
Hauptverfasser:	Daeichin, Verya, Chen, Chao, Ding, Qing, Wu, Min, Beurskens, Robert, Springeling, Geert, Noothout, Emile, Verweij, Martin D, van Dongen, Koen W.A, Bosch, Johan G, van der Steen, Antonius F.W, de Jong, Nico, Pertijs, Michiel, van Soest, Gijs
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplifiers, Electronic Atherosclerosis Broadband receiver Elasticity Imaging Techniques - instrumentation Equipment Design Equipment Failure Analysis Hydrophone Image Enhancement - instrumentation Image Interpretation, Computer-Assisted - instrumentation Integrated circuit Micro-Electrical-Mechanical Systems - instrumentation Photoacoustic Polyvinylidene difluoride transducer Polyvinyls - chemistry Polyvinyls - radiation effects Radiology Reproducibility of Results Sensitivity and Specificity Signal Processing, Computer-Assisted - instrumentation Systems Integration Transducers Ultrasonic Waves Ultrasonography, Interventional - instrumentation User-Computer Interface
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Zusammenfassung:	Abstract Intravascular photoacoustic (IVPA) imaging can visualize the coronary atherosclerotic plaque composition on the basis of the optical absorption contrast. Most of the photoacoustic (PA) energy of human coronary plaque lipids was found to lie in the frequency band between 2 and 15 MHz requiring a very broadband transducer, especially if a combination with intravascular ultrasound is desired. We have developed a broadband polyvinylidene difluoride (PVDF) transducer (0.6 × 0.6 mm, 52 μm thick) with integrated electronics to match the low capacitance of such a small polyvinylidene difluoride element (
ISSN:	0301-5629 1879-291X
DOI:	10.1016/j.ultrasmedbio.2015.12.016