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SUMMARY:Frequency-Domain Waveform Inversion for Ultrasound Tomography - Re
 hman Ali (University of Rochester)
DTSTART:20230621T123000Z
DTEND:20230621T133000Z
UID:TALK202531@talks.cam.ac.uk
DESCRIPTION:Ultrasound tomography is an emerging clinical imaging modality
  that recently gained US FDA approval for adjunctive breast cancer screeni
 ng. Several technical advances over the past two decades have enabled wave
 form inversion-based image reconstruction on clinical systems. In a previo
 us talk\, Dr. Nebojsa Duric described the current state-of-the-art in ultr
 asound tomography as well as future directions for this technology. In thi
 s talk\, Dr. Rehman Ali will continue from the previous talk to describe i
 n greater detail the various mathematical and technical aspects of wavefor
 m inversion (e.g.\, backprojection\, source estimation\, cycle skipping) a
 s well as new modeling strategies towards 3D reconstructions (e.g.\, itera
 tive solvers and approximations to the 3D Helmholtz equation).&nbsp\;The i
 ntention is to demonstrate the actual algorithms used on real in-vivo brea
 st ultrasound tomography data. As a result\, this presentation will also i
 nvolve many practical considerations (e.g.\, data preprocessing) when tran
 slating these mathematical concepts to a real hardware-software implementa
 tion of ultrasound tomography.&nbsp\;If time permits\, there may be a live
  MATLAB demo of the reconstruction process.\n&nbsp\;\nAuthors: Rehman Ali 
 (University of Rochester Medical Center)\, Trevor Mitcham&nbsp\;(Universit
 y of Rochester Medical Center)\, Nebojsa Duric&nbsp\;(University of Roches
 ter Medical Center)
LOCATION:Seminar Room 1\, Newton Institute
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