An imaging model incorporating ultrasonic transducer properties for three-dimensional optoacoustic tomography.
Optoacoustic tomography (OAT) is a hybrid imaging modality that combines the advantages of optical and ultrasound imaging. Most existing reconstruction algorithms for OAT assume that the ultrasound transducers employed to record the measurement data are point-like. When transducers with large detecting areas and/or compact measurement geometries are utilized, this assumption can result in conspicuous image blurring and distortions in the reconstructed images. In this work, a new OAT imaging model that incorporates the spatial and temporal responses of an ultrasound transducer is introduced. A discrete form of the imaging model is implemented and its numerical properties are investigated. We demonstrate that use of the imaging model in an iterative reconstruction method can improve the spatial resolution of the optoacoustic images as compared to those reconstructed assuming point-like ultrasound transducers.
Wang
Kun
K
Department of Biomedical Engineering, Medical Imaging Research Center, Illinois Institute of Technology, Chicago, IL 60616, USA.
Ermilov
Sergey A
SA
Su
Richard
R
Brecht
Hans-Peter
HP
Oraevsky
Alexander A
AA
Anastasio
Mark A
MA
D000162:Acoustics; D000465:Algorithms; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008962:Models, Theoretical; D019047:Phantoms, Imaging; D014054:Tomography / Q000295:instrumentation* / Q000379:methods*; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods
Med Phys. 2003 May;30(5):856-60
12772993
J Biomed Opt. 2008 Sep-Oct;13(5):054052
19021432
IEEE Trans Med Imaging. 2009 Nov;28(11):1781-90
19884066
Med Phys. 1999 Sep;26(9):1832-7
10505871
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Jan;71(1 Pt 2):016706
15697763
Phys Rev Lett. 1991 Dec 9;67(24):3384-3387
10044720
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 May;67(5 Pt 2):056605
12786294
Appl Phys Lett. 2008 Jul 21;93(3):33902
18802493
Appl Opt. 2003 Apr 1;42(10):1899-908
12683772
J Acoust Soc Am. 2002 Oct;112(4):1536-44
12398460
Phys Med Biol. 1992 Mar;37(3):705-16
1565698
Opt Lett. 2006 Feb 15;31(4):474-6
16496891
J Digit Imaging. 2004 Sep;17(3):205-16
15534753
Rev Sci Instrum. 2009 Sep;80(9):093708
19791945
IEEE Trans Image Process. 1996;5(9):1346-58
18285223
IEEE Trans Med Imaging. 2002 Jul;21(7):823-8
12374319
IEEE Trans Med Imaging. 2005 Feb;24(2):199-210
15707246
Opt Lett. 2004 Aug 1;29(15):1760-2
15352361