A Synthetic Total Impulse Response Characterization Method for Correction of Hand-Held Optoacoustic Images

Chowdhury, KB and Prakash, J and Karlas, A and Jüstel, D and Ntziachristos, V (2020) A Synthetic Total Impulse Response Characterization Method for Correction of Hand-Held Optoacoustic Images. In: IEEE Transactions on Medical Imaging, 39 (10). pp. 3218-3230.

PDF IEEE_tra_med_39-10_3218-3230_2020.pdf - Published Version Download (135kB)

Abstract

The impulse response of optoacoustic (photoacoustic) tomographic imaging system depends on several system components, the characteristics of which can influence the quality of reconstructed images. The effect of these system components on reconstruction quality have not been considered in detail so far. Here we combine sparse measurements of the total impulse response (TIR) with a geometric acoustic model to obtain a full characterization of the TIR of a handheld optoacoustic tomography system with concave limited-view acquisition geometry. We then use this synthetic TIR to reconstruct data from phantoms and healthy human volunteers, demonstrating improvements in image resolution and fidelity. The higher accuracy of optoacoustic tomographic reconstruction with TIR correction further improves the diagnostic capability of handheld optoacoustic tomographic systems. © 2020 IEEE.

Item Type:	Journal Article
Publication:	IEEE Transactions on Medical Imaging
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Author(s).
Keywords:	Image enhancement; Image resolution; Impulse response; Tomography, Acquisition geometry; Characterization methods; Diagnostic capabilities; Geometric acoustics; Optoacoustic tomography; Quality of reconstructed images; Reconstruction quality; Tomographic reconstruction, Image reconstruction, Article; geometry; image quality; image reconstruction; photoacoustic tomography; algorithm; human; imaging phantom; photoacoustics; tomography; x-ray computed tomography, Algorithms; Humans; Phantoms, Imaging; Photoacoustic Techniques; Tomography; Tomography, X-Ray Computed
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	12 Jan 2023 08:47
Last Modified:	12 Jan 2023 08:47
URI:	https://eprints.iisc.ac.in/id/eprint/79058

Actions (login required)

View Item