title: An imaging model incorporating ultrasonic transducer properties for three-dimensional optoacoustic tomography.
abstract: 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.
authors.affiliation: Department of Biomedical Engineering, Medical Imaging Research Center, Illinois Institute of Technology, Chicago, IL 60616, USA.
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Ermilov
authors.forename: Richard
authors.initials: R
authors.lastname: Su
authors.forename: Hans-Peter
authors.initials: HP
authors.lastname: Brecht
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Oraevsky
authors.forename: Mark A
authors.initials: MA
authors.lastname: Anastasio
mesh_terms: 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
references.citation: Med Phys. 2003 May;30(5):856-60
references.pmid: 12772993
references.citation: J Biomed Opt. 2008 Sep-Oct;13(5):054052
references.pmid: 19021432
references.citation: IEEE Trans Med Imaging. 2009 Nov;28(11):1781-90
references.pmid: 19884066
references.citation: Med Phys. 1999 Sep;26(9):1832-7
references.pmid: 10505871
references.citation: Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Jan;71(1 Pt 2):016706
references.pmid: 15697763
references.citation: Phys Rev Lett. 1991 Dec 9;67(24):3384-3387
references.pmid: 10044720
references.citation: Phys Rev E Stat Nonlin Soft Matter Phys. 2003 May;67(5 Pt 2):056605
references.pmid: 12786294
references.citation: Appl Phys Lett. 2008 Jul 21;93(3):33902
references.pmid: 18802493
references.citation: Appl Opt. 2003 Apr 1;42(10):1899-908
references.pmid: 12683772
references.citation: J Acoust Soc Am. 2002 Oct;112(4):1536-44
references.pmid: 12398460
references.citation: Phys Med Biol. 1992 Mar;37(3):705-16
references.pmid: 1565698
references.citation: Opt Lett. 2006 Feb 15;31(4):474-6
references.pmid: 16496891
references.citation: J Digit Imaging. 2004 Sep;17(3):205-16
references.pmid: 15534753
references.citation: Rev Sci Instrum. 2009 Sep;80(9):093708
references.pmid: 19791945
references.citation: IEEE Trans Image Process. 1996;5(9):1346-58
references.pmid: 18285223
references.citation: IEEE Trans Med Imaging. 2002 Jul;21(7):823-8
references.pmid: 12374319
references.citation: IEEE Trans Med Imaging. 2005 Feb;24(2):199-210
references.pmid: 15707246
references.citation: Opt Lett. 2004 Aug 1;29(15):1760-2
references.pmid: 15352361