Ring-based ultrasonic virtual point detector with applications to photoacoustic tomography
- 18 June 2007
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (25) , 251103
- https://doi.org/10.1063/1.2749856
Abstract
An ultrasonic virtual point detector is constructed using the center of a ring transducer. The virtual point detector provides ideal omnidirectional detection free of any aperture effect. Compared with a real point detector, the virtual one has lower thermal noise and can be scanned with its center inside a physically inaccessible medium. When applied to photoacoustic tomography, the virtual point detector provides both high spatial resolution and high signal-to-noise ratio. It can also be potentially applied to other ultrasound-related technologies.Keywords
This publication has 11 references indexed in Scilit:
- Photoacoustic imaging in biomedicineReview of Scientific Instruments, 2006
- In vivo testing of laser optoacoustic system for image-guided biopsy of prostatePublished by SPIE-Intl Soc Optical Eng ,2006
- Thermoacoustic tomography with integrating area and line detectorsIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2005
- Thermoacoustic computed tomography with large planar receiversInverse Problems, 2004
- Analytic explanation of spatial resolution related to bandwidth and detector aperture size in thermoacoustic or photoacoustic reconstructionPhysical Review E, 2003
- Microwave‐induced thermoacoustic tomography using multi‐sector scanningMedical Physics, 2001
- Scanning microwave-induced thermoacoustic tomography: Signal, resolution, and contrastMedical Physics, 2001
- Laser optoacoustic tomography for medical diagnostics: principlesPublished by SPIE-Intl Soc Optical Eng ,1996
- Lateral and z-axial resolution in laser optoacoustic imaging with ultrasonic transducersPublished by SPIE-Intl Soc Optical Eng ,1995
- Diffraction impulse response of rectangular transducersThe Journal of the Acoustical Society of America, 1992