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A novel photoacoustic tomography based on a time-resolved technique and an acoustic lens imaging system.
- Source :
-
Physics in medicine and biology [Phys Med Biol] 2006 May 21; Vol. 51 (10), pp. 2671-80. Date of Electronic Publication: 2006 May 04. - Publication Year :
- 2006
-
Abstract
- A novel photoacoustic (PA) tomographic method, which is based on a time-resolved technique and an acoustic lens imaging system, is presented in this paper. A YAG laser operating at 532 nm with a 7 ns pulse width and 10 mJ optical pulse is employed as the excitation source to irradiate the tissue. PA signals generated from the tissue are imaged onto a multi-element linear array transducer with an acoustic lens. A 64 electronic switch is efficiently used for changing the parallel PA signals into a series. The proposed method directly provides PA images without any complex reconstruction algorithms. With the time-resolved technique, tomographic imaging can be achieved successfully. The results show that the images agree well with the original samples.
Details
- Language :
- English
- ISSN :
- 0031-9155
- Volume :
- 51
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Physics in medicine and biology
- Publication Type :
- Academic Journal
- Accession number :
- 16675875
- Full Text :
- https://doi.org/10.1088/0031-9155/51/10/019