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Transcranial Thermoacoustic Tomography: A Comparison of Two Imaging Algorithms

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4 Author(s)
Zijian Liu ; Biomed. Eng. Program, Univ. of Connecticut, Storrs, CT, USA ; Lanbo Liu ; Yuan Xu ; Wang, L.V.

Thermoacoustic tomography (TAT) is a novel, non-invasive medical imaging technique but has encountered obstacles in imaging through the cranium. In this paper we present two methods for transcranial TAT: Kirchhoff migration (KM) and reverse-time migration (RTM). The two methods' imaging qualities are verified and compared based on both synthetic and experimental data. RTM proves to have better velocity variance and imaging quality, and little noise with spatial aliasing. RTM is a promising approach for achieving transcranial TAT in further studies.

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Medical Imaging, IEEE Transactions on  (Volume:32 ,  Issue: 2 )